Publish

- 0x.js@0.36.1
 - @0xproject/abi-gen@0.2.11
 - @0xproject/assert@0.2.7
 - @0xproject/base-contract@0.2.1
 - @0xproject/connect@0.6.10
 - contracts@2.1.23
 - @0xproject/deployer@0.4.1
 - @0xproject/dev-utils@0.3.6
 - @0xproject/json-schemas@0.7.21
 - @0xproject/metacoin@0.0.4
 - @0xproject/migrations@0.0.2
 - @0xproject/monorepo-scripts@0.1.18
 - @0xproject/react-docs-example@0.0.8
 - @0xproject/react-docs@0.0.8
 - @0xproject/react-shared@0.1.3
 - @0xproject/sol-cov@0.0.8
 - @0xproject/sol-resolver@0.0.2
 - @0xproject/sra-report@0.0.9
 - @0xproject/subproviders@0.9.0
 - @0xproject/testnet-faucets@1.0.24
 - @0xproject/tslint-config@0.4.16
 - @0xproject/types@0.6.1
 - @0xproject/typescript-typings@0.2.0
 - @0xproject/utils@0.5.2
 - @0xproject/web3-wrapper@0.6.1
 - @0xproject/website@0.0.26

.circleci/config.yml

@@ -124,6 +124,10 @@ jobs:
           key: coverage-sol-cov-{{ .Environment.CIRCLE_SHA1 }}
           paths:
             - ~/repo/packages/sol-cov/coverage/lcov.info
+      - save_cache:
+          key: coverage-metacoin-{{ .Environment.CIRCLE_SHA1 }}
+          paths:
+            - ~/repo/packages/metacoin/coverage/lcov.info
   lint:
     working_directory: ~/repo
     docker:
@@ -177,6 +181,9 @@ jobs:
       - restore_cache:
           keys:
             - coverage-0xjs-{{ .Environment.CIRCLE_SHA1 }}
+      - restore_cache:
+          keys:
+            - coverage-metacoin-{{ .Environment.CIRCLE_SHA1 }}
       - run: yarn report_coverage
 workflows:
   version: 2

.gitignore

@@ -74,7 +74,10 @@ packages/react-docs/example/public/bundle*
 bin/
 
 # generated contract artifacts
-packages/contracts/src/artifacts
+packages/sol-cov/test/fixtures/artifacts
+packages/metacoin/artifacts
+packages/0x.js/test/artifacts
+packages/migrations/src/artifacts
 
 # generated contract wrappers
 packages/0x.js/src/contract_wrappers/generated/

.prettierignore

@@ -1,5 +1,7 @@
 lib
 .nyc_output
 /packages/contracts/src/artifacts
+/packages/metacoin/artifacts
+/packages/migrations/src/artifacts
 package.json
 scripts/postpublish_utils.js

PULL_REQUEST_TEMPLATE.md

@@ -36,7 +36,6 @@
 
 *   [ ] Change requires a change to the documentation.
 *   [ ] Added tests to cover my changes.
-*   [ ] Added new entries to the relevant CHANGELOGs.
-*   [ ] Updated the new versions of the changed packages in the relevant CHANGELOGs.
+*   [ ] Added new entries to the relevant CHANGELOG.jsons.
 *   [ ] Labeled this PR with the 'WIP' label if it is a work in progress.
 *   [ ] Labeled this PR with the labels corresponding to the changed package.

README.md

@@ -14,7 +14,6 @@ This repository is a monorepo including the 0x protocol smart contracts and nume
 [![Discord](https://img.shields.io/badge/chat-rocket.chat-yellow.svg?style=flat)](https://chat.0xproject.com)
 [![Join the chat at https://gitter.im/0xProject/Lobby](https://badges.gitter.im/0xProject/Lobby.svg)](https://gitter.im/0xProject/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
-[![Greenkeeper badge](https://badges.greenkeeper.io/0xProject/0x-monorepo.svg?token=7c22e5c72acf39d3ead8d29c5d9bb38f9096df3e643024dcedd53ab732847be1&ts=1496426342666)](https://greenkeeper.io/)
 
 ### Published Packages
 
@@ -32,7 +31,7 @@ This repository is a monorepo including the 0x protocol smart contracts and nume
 | [`@0xproject/react-docs`](/packages/react-docs)                 | [![npm](https://img.shields.io/npm/v/@0xproject/react-docs.svg)](https://www.npmjs.com/package/@0xproject/react-docs)                 | React documentation component for rendering TypeDoc & Doxity generated JSON |
 | [`@0xproject/react-shared`](/packages/react-shared)             | [![npm](https://img.shields.io/npm/v/@0xproject/react-shared.svg)](https://www.npmjs.com/package/@0xproject/react-shared)             | 0x shared react components                                                  |
 | [`@0xproject/sra-report`](/packages/sra-report)                 | [![npm](https://img.shields.io/npm/v/@0xproject/sra-report.svg)](https://www.npmjs.com/package/@0xproject/sra-report)                 | Generate reports for standard relayer API compliance                        |
-| [`@0xproject/sol-cov`](/packages/sol-cov)                       | [![npm](https://img.shields.io/npm/v/@0xproject/sol-cov.svg)](https://www.npmjs.com/package/@0xproject/sol-cov)                       | Solidity test coverage tool tool                                            |
+| [`@0xproject/sol-cov`](/packages/sol-cov)                       | [![npm](https://img.shields.io/npm/v/@0xproject/sol-cov.svg)](https://www.npmjs.com/package/@0xproject/sol-cov)                       | Solidity test coverage tool                                                 |
 | [`@0xproject/subproviders`](/packages/subproviders)             | [![npm](https://img.shields.io/npm/v/@0xproject/subproviders.svg)](https://www.npmjs.com/package/@0xproject/subproviders)             | Useful web3 subproviders (e.g LedgerSubprovider)                            |
 | [`@0xproject/tslint-config`](/packages/tslint-config)           | [![npm](https://img.shields.io/npm/v/@0xproject/tslint-config.svg)](https://www.npmjs.com/package/@0xproject/tslint-config)           | Custom 0x development TSLint rules                                          |
 | [`@0xproject/types`](/packages/types)                           | [![npm](https://img.shields.io/npm/v/@0xproject/types.svg)](https://www.npmjs.com/package/@0xproject/types)                           | Shared type declarations                                                    |
@@ -74,7 +73,7 @@ You can include those by prepending @0xproject/typescript-typings package to you
 
 We strongly recommend that the community help us make improvements and determine the future direction of the protocol. To report bugs within this package, please create an issue in this repository.
 
-Please read our [contribution guidelines](./CONTRIBUTING.md) before getting started.
+#### Read our [contribution guidelines](./CONTRIBUTING.md).
 
 ### Install dependencies
 
@@ -118,24 +117,6 @@ yarn lerna:run lint
 
 ### Run Tests
 
-Before running the tests, you will need to spin up a [TestRPC](https://www.npmjs.com/package/ethereumjs-testrpc) instance and deploy all the 0x smart contracts.
-
-In a separate terminal, start TestRPC (a convenience command is provided as part of this repo)
-
 ```bash
-yarn testrpc
-```
-
-Then in your main terminal run
-
-```
-cd packages/contracts
-yarn migrate
-cd ..
-```
-
-And finally from the root project directory run
-
-```bash
-yarn lerna:run test
+yarn lerna:test
 ```

package.json

@@ -13,11 +13,13 @@
         "test:installation": "node ./packages/monorepo-scripts/lib/test_installation.js",
         "lerna:install": "yarn install",
         "lerna:run": "lerna run",
+        "lerna:test": "lerna run test",
         "lerna:clean": "lerna run clean",
         "lerna:build": "lerna run build",
         "lerna:rebuild": "run-s lerna:clean lerna:build",
         "lerna:publish": "run-s lerna:install lerna:rebuild script:publish",
         "lerna:publish:dry": "run-s lerna:install lerna:rebuild script:publish:dry",
+        "lerna:stage_docs": "lerna run docs:stage",
         "script:publish": "node ./packages/monorepo-scripts/lib/publish.js",
         "script:publish:dry": "IS_DRY_RUN=true yarn script:publish"
     },

packages/0x.js/CHANGELOG.json

@@ -1,10 +1,38 @@
 [
+    {
+        "version": "0.36.1",
+        "changes": [
+            {
+                "note": "Internal changes and refactoring"
+            },
+            {
+                "note": "Fix redundant expired order removal bug",
+                "pr": 527
+            }
+        ],
+        "timestamp": 1524044013
+    },
+    {
+        "version": "0.36.0",
+        "changes": [
+            {
+                "note": "Moved Web3.Provider to `@0xproject/types:Provider`",
+                "pr": 501
+            },
+            {
+                "note":
+                    "Add `zeroEx.exchange.getOrderStateAsync` to allow obtaining current OrderState for a signedOrder",
+                "pr": 510
+            }
+        ],
+        "timestamp": 1523462196
+    },
     {
         "version": "0.35.0",
         "changes": [
             {
                 "note":
-                    "Removed `ZeroExError.TransactionMiningTimeout` and moved it to '@0xproject/web3_wrapper' `Web3WrapperErrors.TransactionMiningTimeout`",
+                    "Removed `ZeroExError.TransactionMiningTimeout` and moved it to '@0xproject/web3-wrapper' `Web3WrapperErrors.TransactionMiningTimeout`",
                 "pr": 485
             }
         ],
@@ -46,8 +74,7 @@
                 "pr": 456
             }
         ],
-        "timestamp": 1521298800,
-        "isPublished": true
+        "timestamp": 1521298800
     },
     {
         "version": "0.33.1",
@@ -56,8 +83,7 @@
                 "note": "Add missing EthersJs typescript typings as dependency"
             }
         ],
-        "timestamp": 1520434800,
-        "isPublished": true
+        "timestamp": 1520434800
     },
     {
         "version": "0.33.0",
@@ -83,8 +109,7 @@
                 "pr": 429
             }
         ],
-        "timestamp": 1520089200,
-        "isPublished": true
+        "timestamp": 1520089200
     },
     {
         "version": "0.32.2",
@@ -94,8 +119,7 @@
                 "pr": 389
             }
         ],
-        "timestamp": 1518102000,
-        "isPublished": true
+        "timestamp": 1518102000
     },
     {
         "version": "0.32.1",
@@ -109,8 +133,7 @@
                 "pr": 371
             }
         ],
-        "timestamp": 1517929200,
-        "isPublished": true
+        "timestamp": 1517929200
     },
     {
         "version": "0.32.0",
@@ -125,8 +148,7 @@
                 "pr": 366
             }
         ],
-        "timestamp": 1517756400,
-        "isPublished": true
+        "timestamp": 1517756400
     },
     {
         "version": "0.31.1",
@@ -136,8 +158,7 @@
                 "pr": 357
             }
         ],
-        "timestamp": 1517410800,
-        "isPublished": true
+        "timestamp": 1517410800
     },
     {
         "version": "0.31.0",
@@ -148,8 +169,7 @@
                 "pr": 349
             }
         ],
-        "timestamp": 1517238000,
-        "isPublished": true
+        "timestamp": 1517238000
     },
     {
         "version": "0.30.2",
@@ -162,8 +182,7 @@
                 "note": "Move @0xproject/types to dependencies from devDependencies fixing missing type errors"
             }
         ],
-        "timestamp": 1517151600,
-        "isPublished": true
+        "timestamp": 1517151600
     },
     {
         "version": "0.30.1",
@@ -177,8 +196,7 @@
                 "pr": 341
             }
         ],
-        "timestamp": 1516719600,
-        "isPublished": true
+        "timestamp": 1516719600
     },
     {
         "version": "0.30.0",
@@ -197,8 +215,7 @@
                 "pr": 321
             }
         ],
-        "timestamp": 1516114800,
-        "isPublished": true
+        "timestamp": 1516114800
     },
     {
         "version": "0.29.1",
@@ -208,8 +225,7 @@
                 "pr": 305
             }
         ],
-        "timestamp": 1515596400,
-        "isPublished": true
+        "timestamp": 1515596400
     },
     {
         "version": "0.29.0",
@@ -223,8 +239,7 @@
                 "pr": 287
             }
         ],
-        "timestamp": 1514386800,
-        "isPublished": true
+        "timestamp": 1514386800
     },
     {
         "version": "0.28.0",
@@ -270,8 +285,7 @@
                 "pr": 278
             }
         ],
-        "timestamp": 1513695600,
-        "isPublished": true
+        "timestamp": 1513695600
     },
     {
         "version": "0.27.1",
@@ -280,8 +294,7 @@
                 "note": "Export `TransactionOpts` type"
             }
         ],
-        "timestamp": 1511794800,
-        "isPublished": true
+        "timestamp": 1511794800
     },
     {
         "version": "0.27.0",
@@ -326,8 +339,7 @@
                 "pr": 236
             }
         ],
-        "timestamp": 1511794800,
-        "isPublished": true
+        "timestamp": 1511794800
     },
     {
         "version": "0.26.0",
@@ -347,8 +359,7 @@
                 "pr": 225
             }
         ],
-        "timestamp": 1511190000,
-        "isPublished": true
+        "timestamp": 1511190000
     },
     {
         "version": "0.25.1",
@@ -367,8 +378,7 @@
                 "pr": 200
             }
         ],
-        "timestamp": 1510498800,
-        "isPublished": true
+        "timestamp": 1510498800
     },
     {
         "version": "0.23.0",
@@ -381,8 +391,7 @@
                 "note": "Subscribe callbacks now receive an error object as their first argument"
             }
         ],
-        "timestamp": 1510412400,
-        "isPublished": true
+        "timestamp": 1510412400
     },
     {
         "version": "0.22.6",
@@ -392,8 +401,7 @@
                 "pr": 206
             }
         ],
-        "timestamp": 1510239600,
-        "isPublished": true
+        "timestamp": 1510239600
     },
     {
         "version": "0.22.5",
@@ -402,8 +410,7 @@
                 "note": "Re-publish v0.22.4 to fix publishing issue"
             }
         ],
-        "timestamp": 1509980400,
-        "isPublished": true
+        "timestamp": 1509980400
     },
     {
         "version": "0.22.4",
@@ -412,8 +419,7 @@
                 "note": "Upgraded bignumber.js to a new version that ships with native typings"
             }
         ],
-        "timestamp": 1508857200,
-        "isPublished": true
+        "timestamp": 1508857200
     },
     {
         "version": "0.22.3",
@@ -423,8 +429,7 @@
                 "pr": 199
             }
         ],
-        "timestamp": 1508857200,
-        "isPublished": true
+        "timestamp": 1508857200
     },
     {
         "version": "0.22.2",
@@ -434,8 +439,7 @@
                 "pr": 197
             }
         ],
-        "timestamp": 1508770800,
-        "isPublished": true
+        "timestamp": 1508770800
     },
     {
         "version": "0.22.0",
@@ -450,8 +454,7 @@
                 "pr": 187
             }
         ],
-        "timestamp": 1508079600,
-        "isPublished": true
+        "timestamp": 1508079600
     },
     {
         "version": "0.21.4",
@@ -462,8 +465,7 @@
                 "pr": 194
             }
         ],
-        "timestamp": 1507820400,
-        "isPublished": true
+        "timestamp": 1507820400
     },
     {
         "version": "0.21.3",
@@ -473,8 +475,7 @@
                 "pr": 193
             }
         ],
-        "timestamp": 1507734000,
-        "isPublished": true
+        "timestamp": 1507734000
     },
     {
         "version": "0.21.2",
@@ -484,8 +485,7 @@
                 "pr": 190
             }
         ],
-        "timestamp": 1507647600,
-        "isPublished": true
+        "timestamp": 1507647600
     },
     {
         "version": "0.21.1",
@@ -495,8 +495,7 @@
                 "pr": 189
             }
         ],
-        "timestamp": 1507647600,
-        "isPublished": true
+        "timestamp": 1507647600
     },
     {
         "version": "0.21.0",
@@ -542,8 +541,7 @@
                 "pr": 185
             }
         ],
-        "timestamp": 1507561200,
-        "isPublished": true
+        "timestamp": 1507561200
     },
     {
         "version": "0.20.0",
@@ -561,8 +559,7 @@
                 "pr": 181
             }
         ],
-        "timestamp": 1507129200,
-        "isPublished": true
+        "timestamp": 1507129200
     },
     {
         "version": "0.19.0",
@@ -580,8 +577,7 @@
                 "pr": 175
             }
         ],
-        "timestamp": 1506610800,
-        "isPublished": true
+        "timestamp": 1506610800
     },
     {
         "version": "0.18.0",
@@ -591,8 +587,7 @@
                 "pr": 170
             }
         ],
-        "timestamp": 1506351600,
-        "isPublished": true
+        "timestamp": 1506351600
     },
     {
         "version": "0.17.0",
@@ -602,8 +597,7 @@
                 "pr": 171
             }
         ],
-        "timestamp": 1506351600,
-        "isPublished": true
+        "timestamp": 1506351600
     },
     {
         "version": "0.16.0",
@@ -626,8 +620,7 @@
                 "pr": 165
             }
         ],
-        "timestamp": 1505833200,
-        "isPublished": true
+        "timestamp": 1505833200
     },
     {
         "version": "0.15.0",
@@ -638,8 +631,7 @@
                 "pr": 161
             }
         ],
-        "timestamp": 1504796400,
-        "isPublished": true
+        "timestamp": 1504796400
     },
     {
         "version": "0.14.2",
@@ -649,8 +641,7 @@
                 "pr": 160
             }
         ],
-        "timestamp": 1504710000,
-        "isPublished": true
+        "timestamp": 1504710000
     },
     {
         "version": "0.14.1",
@@ -660,8 +651,7 @@
                 "pr": 159
             }
         ],
-        "timestamp": 1504710000,
-        "isPublished": true
+        "timestamp": 1504710000
     },
     {
         "version": "0.14.0",
@@ -679,8 +669,7 @@
                 "pr": 157
             }
         ],
-        "timestamp": 1504623600,
-        "isPublished": true
+        "timestamp": 1504623600
     },
     {
         "version": "0.13.0",
@@ -704,8 +693,7 @@
                 "pr": 152
             }
         ],
-        "timestamp": 1504623600,
-        "isPublished": true
+        "timestamp": 1504623600
     },
     {
         "version": "0.12.1",
@@ -723,8 +711,7 @@
                 "pr": 139
             }
         ],
-        "timestamp": 1504278000,
-        "isPublished": true
+        "timestamp": 1504278000
     },
     {
         "version": "0.11.0",
@@ -742,8 +729,7 @@
                 "pr": 137
             }
         ],
-        "timestamp": 1503500400,
-        "isPublished": true
+        "timestamp": 1503500400
     },
     {
         "version": "0.10.4",
@@ -753,8 +739,7 @@
                 "pr": 135
             }
         ],
-        "timestamp": 1503500400,
-        "isPublished": true
+        "timestamp": 1503500400
     },
     {
         "version": "0.10.1",
@@ -808,8 +793,7 @@
                 "pr": 127
             }
         ],
-        "timestamp": 1503500400,
-        "isPublished": true
+        "timestamp": 1503500400
     },
     {
         "version": "0.9.3",
@@ -819,8 +803,7 @@
                 "pr": 118
             }
         ],
-        "timestamp": 1503327600,
-        "isPublished": true
+        "timestamp": 1503327600
     },
     {
         "version": "0.9.2",
@@ -833,8 +816,7 @@
                 "pr": 118
             }
         ],
-        "timestamp": 1503241200,
-        "isPublished": true
+        "timestamp": 1503241200
     },
     {
         "version": "0.9.1",
@@ -844,8 +826,7 @@
                 "pr": 120
             }
         ],
-        "timestamp": 1502809200,
-        "isPublished": true
+        "timestamp": 1502809200
     },
     {
         "version": "0.9.0",
@@ -882,8 +863,7 @@
                 "pr": 109
             }
         ],
-        "timestamp": 1500994800,
-        "isPublished": true
+        "timestamp": 1500994800
     },
     {
         "version": "0.8.0",
@@ -925,8 +905,7 @@
                 "note": "Fixed the bug where `zeroEx.setProviderAsync` didn't invalidate etherToken contract's instance"
             }
         ],
-        "timestamp": 1499094000,
-        "isPublished": true
+        "timestamp": 1499094000
     },
     {
         "version": "0.7.1",
@@ -937,8 +916,7 @@
                 "pr": 81
             }
         ],
-        "timestamp": 1498402800,
-        "isPublished": true
+        "timestamp": 1498402800
     },
     {
         "version": "0.7.0",
@@ -960,8 +938,7 @@
                     "Renamed type `LogCancelArgs` to `LogCancelContractEventArgs` and `LogFillArgs` to `LogFillContractEventArgs`"
             }
         ],
-        "timestamp": 1498057200,
-        "isPublished": true
+        "timestamp": 1498057200
     },
     {
         "version": "0.6.2",
@@ -973,8 +950,7 @@
                 "note": "Improved documentation"
             }
         ],
-        "timestamp": 1497970800,
-        "isPublished": true
+        "timestamp": 1497970800
     },
     {
         "version": "0.6.1",
@@ -983,8 +959,7 @@
                 "note": "Improved documentation"
             }
         ],
-        "timestamp": 1497798000,
-        "isPublished": true
+        "timestamp": 1497798000
     },
     {
         "version": "0.6.0",
@@ -996,8 +971,7 @@
                 "note": "Added types for contract event arguments"
             }
         ],
-        "timestamp": 1497798000,
-        "isPublished": true
+        "timestamp": 1497798000
     },
     {
         "version": "0.5.2",
@@ -1007,8 +981,7 @@
                     "Fixed the bug in `postpublish` script that caused that only unminified UMD bundle was uploaded to release page"
             }
         ],
-        "timestamp": 1497452400,
-        "isPublished": true
+        "timestamp": 1497452400
     },
     {
         "version": "0.5.1",
@@ -1017,7 +990,6 @@
                 "note": "Added `postpublish` script to publish to Github Releases with assets."
             }
         ],
-        "timestamp": 1497452400,
-        "isPublished": true
+        "timestamp": 1497452400
     }
 ]

packages/0x.js/CHANGELOG.md

@@ -5,9 +5,19 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.36.1 - _April 18, 2018_
+
+    * Internal changes and refactoring
+    * Fix redundant expired order removal bug (#527)
+
+## v0.36.0 - _April 12, 2018_
+
+    * Moved Web3.Provider to `@0xproject/types:Provider` (#501)
+    * Add `zeroEx.exchange.getOrderStateAsync` to allow obtaining current OrderState for a signedOrder (#510)
+
 ## v0.35.0 - _April 2, 2018_
 
-    * Removed `ZeroExError.TransactionMiningTimeout` and moved it to '@0xproject/web3_wrapper' `Web3WrapperErrors.TransactionMiningTimeout` (#485)
+    * Removed `ZeroExError.TransactionMiningTimeout` and moved it to '@0xproject/web3-wrapper' `Web3WrapperErrors.TransactionMiningTimeout` (#485)
 
 ## v0.34.0 - _April 2, 2018_
 
@@ -16,16 +26,16 @@ CHANGELOG
     * Add `zeroEx.createOrderStateWatcher` to allow creating arbitrary number of OrderStateWatchers (#488)
     * Added `stateLayer` setting to `OrderStateWatcherConfig` so OrderStateWatcher can be set to monitor different blockchain state layers (#488)
 
-## v0.33.2 - _March 17, 2018_
+## v0.33.2 - _March 18, 2018_
 
     * Consolidate all `console.log` calls into `logUtils` in the `@0xproject/utils` package (#452)
     * Consolidate `Order`, `SignedOrder`, and `ECSignature` into the `@0xproject/types` package (#456)
 
-## v0.33.1 - _March 7, 2018_
+## v0.33.1 - _March 8, 2018_
 
     * Add missing EthersJs typescript typings as dependency
 
-## v0.33.0 - _March 3, 2018_
+## v0.33.0 - _March 4, 2018_
 
     * Validate and lowercase all addresses in public methods (#373)
     * Improve validation to force passing contract addresses on private networks (#385)
@@ -33,54 +43,54 @@ CHANGELOG
     * Rename all public `_unsubscribeAll` methods to `unsubscribeAll` (#415)
     * Move web3 typings from devDep to dep since cannot use this package without it (#429)
 
-## v0.32.2 - _February 8, 2018_
+## v0.32.2 - _February 9, 2018_
 
     * Fix publishing issue where .npmignore was not properly excluding undesired content (#389)
 
-## v0.32.1 - _February 6, 2018_
+## v0.32.1 - _February 7, 2018_
 
     * Reorganized `BlockParamLiteral` export into `@0xproject/types` package (#355)
     * Now using `abi-gen` package to generate ContractEventArgs types (#371)
 
-## v0.32.0 - _February 4, 2018_
+## v0.32.0 - _February 5, 2018_
 
     * Add `zeroEx.etherToken.getContractAddressIfExists` (#350)
     * Fixed the bug causing order watcher to throw if there is an event with the same signature but different indexed fields (#366)
 
-## v0.31.1 - _January 31, 2018_
+## v0.31.1 - _February 1, 2018_
 
     * Fix the bug causing order watcher to throw if makerToken === zrx (#357)
 
-## v0.31.0 - _January 29, 2018_
+## v0.31.0 - _January 30, 2018_
 
     * Add the `shouldAddPersonalMessagePrefix` parameter to `signOrderHashAsync` so that the caller can decide on whether to add the personalMessage prefix before relaying the request to the signer. Parity Signer, Ledger and TestRPC add the prefix themselves, Metamask expects it to have already been added. (#349)
 
-## v0.30.2 - _January 28, 2018_
+## v0.30.2 - _January 29, 2018_
 
     * Add Rinkeby testnet addresses to artifacts  (#337)
     * Move @0xproject/types to dependencies from devDependencies fixing missing type errors
 
-## v0.30.1 - _January 23, 2018_
+## v0.30.1 - _January 24, 2018_
 
     * Fix a bug allowing negative fill values  (#212)
     * Fix a bug that made it impossible to pass a custom ZRX address  (#341)
 
-## v0.30.0 - _January 16, 2018_
+## v0.30.0 - _January 17, 2018_
 
     * Add an error parameter to the order watcher callback (#312)
     * Fix a bug making it impossible to catch some errors from awaitTransactionMinedAsync (#312)
     * Fix a bug in fillOrdersUpTo validation making it impossible to fill up to if user doesn't have enough balance to fully fill all the orders (#321)
 
-## v0.29.1 - _January 10, 2018_
+## v0.29.1 - _January 11, 2018_
 
     * Fixed bignumber config issue #301 (#305)
 
-## v0.29.0 - _December 27, 2017_
+## v0.29.0 - _December 28, 2017_
 
     * Assert baseUnit amount supplied to `toUnitAmount` is integer amount. (#287)
     * `toBaseUnitAmount` throws if amount supplied has too many decimals (#287)
 
-## v0.28.0 - _December 19, 2017_
+## v0.28.0 - _December 20, 2017_
 
     * Add `etherTokenAddress` arg to `depositAsync` and `withdrawAsync` methods on `zeroEx.etherToken` (#267)
     * Removed accidentally included `unsubscribeAll` method from `zeroEx.proxy`, `zeroEx.etherToken` and `zeroEx.tokenRegistry` (#267)
@@ -92,11 +102,11 @@ CHANGELOG
     * Support `Deposit` and `Withdraw` events on etherToken (#277)
     * Improve the error message when taker is not a string (#278)
 
-## v0.27.1 - _November 27, 2017_
+## v0.27.1 - _November 28, 2017_
 
     * Export `TransactionOpts` type
 
-## v0.27.0 - _November 27, 2017_
+## v0.27.0 - _November 28, 2017_
 
     * Make `ZeroExConfig` required parameter of `ZeroEx` constructor (#233)
     * Add a required property `networkId` to `ZeroExConfig` (#233)
@@ -108,65 +118,65 @@ CHANGELOG
     * All transaction sending methods now call `estimateGas` if no gas amount was supplied (#235)
     * Modify order validation methods to validate against the `latest` block, not against the `pending` block (#236)
 
-## v0.26.0 - _November 20, 2017_
+## v0.26.0 - _November 21, 2017_
 
     * Add post-formatter for logs converting `blockNumber`, `logIndex`, `transactionIndex` from hexes to numbers (#231)
     * Remove support for Async callback types when used in Subscribe functions (#222)
     * In OrderWatcher subscribe to ZRX Token Transfer and Approval events when maker token is different (#225)
 
-## v0.25.1 - _November 12, 2017_
+## v0.25.1 - _November 13, 2017_
 
     * Standardise on Cancelled over Canceled (#217)
     * Add missing `DecodedLogEvent` type to exported types (#205)
     * Normalized the transactionReceipt status to be `null|0|1`, 1 meaning transaction execution successful, 0 unsuccessful and `null` if it is a pre-byzantinium transaction. (#200)
 
-## v0.23.0 - _November 11, 2017_
+## v0.23.0 - _November 12, 2017_
 
     * Fixed unhandled promise rejection error in subscribe methods (#209)
     * Subscribe callbacks now receive an error object as their first argument
 
-## v0.22.6 - _November 9, 2017_
+## v0.22.6 - _November 10, 2017_
 
     * Add a timeout parameter to transaction awaiting (#206)
 
-## v0.22.5 - _November 6, 2017_
+## v0.22.5 - _November 7, 2017_
 
     * Re-publish v0.22.4 to fix publishing issue
 
-## v0.22.4 - _October 24, 2017_
+## v0.22.4 - _October 25, 2017_
 
     * Upgraded bignumber.js to a new version that ships with native typings
 
-## v0.22.3 - _October 24, 2017_
+## v0.22.3 - _October 25, 2017_
 
     * Fixed an issue with new version of testrpc and unlimited proxy allowance (#199)
 
-## v0.22.2 - _October 23, 2017_
+## v0.22.2 - _October 24, 2017_
 
     * Fixed rounding of maker fill amount and incorrect validation of partial fees (#197)
 
-## v0.22.0 - _October 15, 2017_
+## v0.22.0 - _October 16, 2017_
 
     * Started using `OrderFillRequest` interface instead of `OrderFillOrKillRequest` interface for `zeroEx.exchange.batchFillOrKill` (#187)
     * Removed `OrderFillOrKillRequest` (#187)
 
-## v0.21.4 - _October 12, 2017_
+## v0.21.4 - _October 13, 2017_
 
     * Made 0x.js more type-safe by making `getLogsAsync` and `subscribe/subscribeAsync` generics parametrized with arg type (#194)
 
-## v0.21.3 - _October 11, 2017_
+## v0.21.3 - _October 12, 2017_
 
     * Fixed a bug causing order fills to throw `INSUFFICIENT_TAKER_ALLOWANCE` (#193)
 
-## v0.21.2 - _October 10, 2017_
+## v0.21.2 - _October 11, 2017_
 
     * Exported `ContractEventArg` as a public type (#190)
 
-## v0.21.1 - _October 10, 2017_
+## v0.21.1 - _October 11, 2017_
 
     * Fixed a bug in subscriptions (#189)
 
-## v0.21.0 - _October 9, 2017_
+## v0.21.0 - _October 10, 2017_
 
     * Complete rewrite of subscription logic (#182)
     * Subscriptions no longer return historical logs. If you want them - use `getLogsAsync`
@@ -181,27 +191,27 @@ CHANGELOG
     * Renamed `zeroEx.token.stopWatchingAllEventsAsync` to `zeroEx.token.unsubscribeAll`
     * Fixed the batch fills validation by emulating all balance & proxy allowance changes (#185)
 
-## v0.20.0 - _October 4, 2017_
+## v0.20.0 - _October 5, 2017_
 
     * Add `zeroEx.token.getLogsAsync` (#178)
     * Add `zeroEx.exchange.getLogsAsync` (#178)
     * Fixed fees validation when one of the tokens transferred is ZRX (#181)
 
-## v0.19.0 - _September 28, 2017_
+## v0.19.0 - _September 29, 2017_
 
     * Made order validation optional  (#172)
     * Added Ropsten testnet support (#173)
     * Fixed a bug causing awaitTransactionMinedAsync to DDos backend nodes (#175)
 
-## v0.18.0 - _September 25, 2017_
+## v0.18.0 - _September 26, 2017_
 
     * Added `zeroEx.exchange.validateOrderFillableOrThrowAsync` to simplify orderbook pruning (#170)
 
-## v0.17.0 - _September 25, 2017_
+## v0.17.0 - _September 26, 2017_
 
     * Made `zeroEx.exchange.getZRXTokenAddressAsync` public (#171)
 
-## v0.16.0 - _September 19, 2017_
+## v0.16.0 - _September 20, 2017_
 
     * Added the ability to specify custom contract addresses to be used with 0x.js (#165)
     * ZeroExConfig.exchangeContractAddress
@@ -209,48 +219,48 @@ CHANGELOG
     * ZeroExConfig.etherTokenContractAddress
     * Added `zeroEx.tokenRegistry.getContractAddressAsync` (#165)
 
-## v0.15.0 - _September 7, 2017_
+## v0.15.0 - _September 8, 2017_
 
     * Added the ability to specify a historical `blockNumber` at which to query the blockchain's state when calling a token or exchange method (#161)
 
-## v0.14.2 - _September 6, 2017_
+## v0.14.2 - _September 7, 2017_
 
     * Fixed an issue with bignumber.js types not found (#160)
 
-## v0.14.1 - _September 6, 2017_
+## v0.14.1 - _September 7, 2017_
 
     * Fixed an issue with Artifact type not found (#159)
 
-## v0.14.0 - _September 5, 2017_
+## v0.14.0 - _September 6, 2017_
 
     * Added `zeroEx.exchange.throwLogErrorsAsErrors` method to public interface (#157)
     * Fixed an issue with overlapping async intervals in `zeroEx.awaitTransactionMinedAsync` (#157)
     * Fixed an issue with log decoder returning `BigNumber`s as `strings` (#157)
 
-## v0.13.0 - _September 5, 2017_
+## v0.13.0 - _September 6, 2017_
 
     * Made all the functions submitting transactions to the network to immediately return transaction hash (#151)
     * Added `zeroEx.awaitTransactionMinedAsync` (#151)
     * Added `TransactionReceiptWithDecodedLogs`, `LogWithDecodedArgs`, `DecodedLogArgs` to public types (#151)
     * Added signature validation to `validateFillOrderThrowIfInvalidAsync` (#152)
 
-## v0.12.1 - _September 1, 2017_
+## v0.12.1 - _September 2, 2017_
 
     * Added the support for web3@1.x.x provider (#142)
     * Added the optional `zeroExConfig`  parameter to the constructor of `ZeroEx` (#139)
     * Added the ability to specify `gasPrice` when instantiating `ZeroEx` (#139)
 
-## v0.11.0 - _August 23, 2017_
+## v0.11.0 - _August 24, 2017_
 
     * Added `zeroEx.token.setUnlimitedProxyAllowanceAsync` (#137)
     * Added `zeroEx.token.setUnlimitedAllowanceAsync` (#137)
     * Added `zeroEx.token.UNLIMITED_ALLOWANCE_IN_BASE_UNITS` (#137)
 
-## v0.10.4 - _August 23, 2017_
+## v0.10.4 - _August 24, 2017_
 
     * Fixed a bug where checksummed addresses were being pulled from artifacts and not lower-cased. (#135)
 
-## v0.10.1 - _August 23, 2017_
+## v0.10.1 - _August 24, 2017_
 
     * Added `zeroEx.exchange.validateFillOrderThrowIfInvalidAsync` (#128)
     * Added `zeroEx.exchange.validateFillOrKillOrderThrowIfInvalidAsync` (#128)
@@ -265,20 +275,20 @@ CHANGELOG
     * Added clear error message when checksummed address is passed to a public method (#124)
     * Fixes the description of `shouldThrowOnInsufficientBalanceOrAllowance` in docs (#127)
 
-## v0.9.3 - _August 21, 2017_
+## v0.9.3 - _August 22, 2017_
 
     * Update contract artifacts to include latest Kovan and Mainnet deploys (#118)
 
-## v0.9.2 - _August 20, 2017_
+## v0.9.2 - _August 21, 2017_
 
     * *This version was unpublished because of a publishing issue.*
     * Update contract artifacts to include latest Kovan and Mainnet deploys (#118)
 
-## v0.9.1 - _August 15, 2017_
+## v0.9.1 - _August 16, 2017_
 
     * Fixed the bug causing `zeroEx.token.getBalanceAsync()` to fail if no addresses available (#120)
 
-## v0.9.0 - _July 25, 2017_
+## v0.9.0 - _July 26, 2017_
 
     * Migrated to the new version of smart contracts (#101)
     * Removed the ability to call methods on multiple authorized Exchange smart contracts (#106)
@@ -289,7 +299,7 @@ CHANGELOG
     * Updated to typescript v2.4 (#104)
     * Fixed an issue with incorrect balance/allowance validation when ZRX is one of the tokens traded (#109)
 
-## v0.8.0 - _July 3, 2017_
+## v0.8.0 - _July 4, 2017_
 
     * Added the ability to call methods on different authorized versions of the Exchange smart contract (#82)
     * Updated contract artifacts to reflect latest changes to the smart contracts (0xproject/contracts#59)
@@ -302,35 +312,35 @@ CHANGELOG
     * `zeroEx.tokenRegistry.invalidateContractInstance`
     * Fixed the bug where `zeroEx.setProviderAsync` didn't invalidate etherToken contract's instance
 
-## v0.7.1 - _June 25, 2017_
+## v0.7.1 - _June 26, 2017_
 
     * Added the ability to convert Ether to wrapped Ether tokens and back via `zeroEx.etherToken.depostAsync` and `zeroEx.etherToken.withdrawAsync` (#81)
 
-## v0.7.0 - _June 21, 2017_
+## v0.7.0 - _June 22, 2017_
 
     * Added Kovan smart contract artifacts (#78)
     * Started returning fillAmount from `fillOrderAsync` and `fillUpToAsync` (#72)
     * Started returning cancelledAmount from `cancelOrderAsync` (#72)
     * Renamed type `LogCancelArgs` to `LogCancelContractEventArgs` and `LogFillArgs` to `LogFillContractEventArgs`
 
-## v0.6.2 - _June 20, 2017_
+## v0.6.2 - _June 21, 2017_
 
     * Reduced bundle size
     * Improved documentation
 
-## v0.6.1 - _June 18, 2017_
+## v0.6.1 - _June 19, 2017_
 
     * Improved documentation
 
-## v0.6.0 - _June 18, 2017_
+## v0.6.0 - _June 19, 2017_
 
     * Made `ZeroEx` class accept `Web3Provider` instance instead of `Web3` instance
     * Added types for contract event arguments
 
-## v0.5.2 - _June 14, 2017_
+## v0.5.2 - _June 15, 2017_
 
     * Fixed the bug in `postpublish` script that caused that only unminified UMD bundle was uploaded to release page
 
-## v0.5.1 - _June 14, 2017_
+## v0.5.1 - _June 15, 2017_
 
     * Added `postpublish` script to publish to Github Releases with assets.

packages/0x.js/README.md

@@ -1,5 +1,9 @@
 ## 0x.js
 
+A TypeScript/Javascript library for interacting with the 0x protocol.
+
+### Read the [Documentation](https://0xproject.com/docs/0x.js).
+
 ## Installation
 
 0x.js ships as both a [UMD](https://github.com/umdjs/umd) module and a [CommonJS](https://en.wikipedia.org/wiki/CommonJS) package.
@@ -38,10 +42,66 @@ Download the UMD module from our [releases page](https://github.com/0xProject/0x
 <script type="text/javascript" src="0x.js"></script>
 ```
 
-## Documentation
+## Contributing
 
-Extensive documentation of 0x.js can be found on [our website][docs-url].
+We strongly recommend that the community help us make improvements and determine the future direction of the protocol. To report bugs within this package, please create an issue in this repository.
 
-[website-url]: https://0xproject.com/
-[whitepaper-url]: https://0xproject.com/pdfs/0x_white_paper.pdf
-[docs-url]: https://0xproject.com/docs/0xjs
+Please read our [contribution guidelines](../../CONTRIBUTING.md) before getting started.
+
+### Install dependencies
+
+If you don't have yarn workspaces enabled (Yarn < v1.0) - enable them:
+
+```bash
+yarn config set workspaces-experimental true
+```
+
+Then install dependencies
+
+```bash
+yarn install
+```
+
+### Build
+
+If this is your **first** time building this package, you must first build **all** packages within the monorepo. This is because packages that depend on other packages located inside this monorepo are symlinked when run from **within** the monorepo. This allows you to make changes across multiple packages without first publishing dependent packages to NPM. To build all packages, run the following from the monorepo root directory:
+
+```bash
+yarn lerna:rebuild
+```
+
+Or continuously rebuild on change:
+
+```bash
+yarn dev
+```
+
+You can also build this specific package by running the following from within its directory:
+
+```bash
+yarn build
+```
+
+or continuously rebuild on change:
+
+```bash
+yarn build:watch
+```
+
+### Clean
+
+```bash
+yarn clean
+```
+
+### Lint
+
+```bash
+yarn lint
+```
+
+### Run Tests
+
+```bash
+yarn test
+```

packages/0x.js/package.json

@@ -1,6 +1,6 @@
 {
     "name": "0x.js",
-    "version": "0.34.0",
+    "version": "0.36.1",
     "description": "A javascript library for interacting with the 0x protocol",
     "keywords": [
         "0x.js",
@@ -15,16 +15,16 @@
         "build:watch": "tsc -w",
         "prebuild": "run-s clean generate_contract_wrappers",
         "build": "run-p build:umd:prod build:commonjs; exit 0;",
-        "generate_contract_wrappers": "node ../abi-gen/lib/index.js --abis 'src/artifacts/@(Exchange|Token|TokenTransferProxy|EtherToken|TokenRegistry|DummyToken).json' --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output src/contract_wrappers/generated --backend ethers && prettier --write 'src/contract_wrappers/generated/**.ts'",
+        "generate_contract_wrappers": "node ../abi-gen/lib/index.js --abis 'src/compact_artifacts/@(Exchange|Token|TokenTransferProxy|EtherToken|TokenRegistry|DummyToken).json' --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output src/contract_wrappers/generated --backend ethers && prettier --write 'src/contract_wrappers/generated/**.ts'",
         "lint": "tslint --project . 'src/**/*.ts' 'test/**/*.ts'",
         "test:circleci": "run-s test:coverage",
         "test": "run-s clean test:commonjs",
         "test:coverage": "nyc npm run test --all && yarn coverage:report:lcov",
         "coverage:report:lcov": "nyc report --reporter=text-lcov > coverage/lcov.info",
-        "update_contracts": "for i in ${npm_package_config_artifacts}; do copyfiles -u 4 ../contracts/build/contracts/$i.json ../0x.js/src/artifacts; done;",
+        "update_artifacts": "for i in ${npm_package_config_contracts}; do copyfiles -u 4 ../migrations/src/artifacts/$i.json test/artifacts; done;",
         "clean": "shx rm -rf _bundles lib test_temp scripts",
         "build:umd:prod": "NODE_ENV=production webpack",
-        "build:commonjs": "tsc && copyfiles -u 2 './src/artifacts/**/*.json' ./lib/src/artifacts && copyfiles -u 3 './lib/src/monorepo_scripts/**/*' ./scripts",
+        "build:commonjs": "tsc && yarn update_artifacts && copyfiles -u 2 './src/compact_artifacts/**/*.json' ./lib/src/compact_artifacts && copyfiles -u 3 './lib/src/monorepo_scripts/**/*' ./scripts",
         "test:commonjs": "run-s build:commonjs run_mocha",
         "run_mocha": "mocha lib/test/**/*_test.js --timeout 10000 --bail --exit",
         "manual:postpublish": "yarn build; node ./scripts/postpublish.js",
@@ -33,7 +33,8 @@
         "upload_docs_json": "aws s3 cp generated_docs/index.json $S3_URL --profile 0xproject --grants read=uri=http://acs.amazonaws.com/groups/global/AllUsers --content-type application/json"
     },
     "config": {
-        "artifacts": "TokenTransferProxy Exchange TokenRegistry Token EtherToken",
+        "compact_artifacts": "Exchange DummyToken ZRXToken Token EtherToken TokenTransferProxy TokenRegistry",
+        "contracts": "Exchange DummyToken ZRXToken Token WETH9 TokenTransferProxy MultiSigWallet MultiSigWalletWithTimeLock MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress MaliciousToken TokenRegistry Arbitrage EtherDelta AccountLevels",
         "postpublish": {
             "assets": [
                 "packages/0x.js/_bundles/index.js",
@@ -60,15 +61,16 @@
         "node": ">=6.0.0"
     },
     "devDependencies": {
-        "@0xproject/abi-gen": "^0.2.8",
-        "@0xproject/dev-utils": "^0.3.3",
-        "@0xproject/monorepo-scripts": "^0.1.15",
-        "@0xproject/tslint-config": "^0.4.13",
+        "@0xproject/deployer": "^0.4.1",
+        "@0xproject/dev-utils": "^0.3.6",
+        "@0xproject/monorepo-scripts": "^0.1.18",
+        "@0xproject/subproviders": "^0.9.0",
+        "@0xproject/tslint-config": "^0.4.16",
         "@types/bintrees": "^1.0.2",
-        "@types/jsonschema": "^1.1.1",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^2.2.42",
         "@types/node": "^8.0.53",
+        "@types/request": "2.47.0",
         "@types/sinon": "^2.2.2",
         "@types/uuid": "^3.4.2",
         "awesome-typescript-loader": "^3.1.3",
@@ -84,11 +86,9 @@
         "opn-cli": "^3.1.0",
         "prettier": "^1.11.1",
         "request": "^2.81.0",
-        "request-promise-native": "^1.0.5",
         "shx": "^0.2.2",
         "sinon": "^4.0.0",
         "source-map-support": "^0.5.0",
-        "truffle-hdwallet-provider": "^0.0.3",
         "tslint": "5.8.0",
         "typedoc": "0xProject/typedoc",
         "typescript": "2.7.1",
@@ -96,13 +96,13 @@
         "webpack": "^3.1.0"
     },
     "dependencies": {
-        "@0xproject/assert": "^0.2.4",
-        "@0xproject/base-contract": "^0.0.6",
-        "@0xproject/json-schemas": "^0.7.18",
-        "@0xproject/types": "^0.4.2",
-        "@0xproject/typescript-typings": "^0.0.2",
-        "@0xproject/utils": "^0.4.4",
-        "@0xproject/web3-wrapper": "^0.4.0",
+        "@0xproject/assert": "^0.2.7",
+        "@0xproject/base-contract": "^0.2.1",
+        "@0xproject/json-schemas": "^0.7.21",
+        "@0xproject/types": "^0.6.1",
+        "@0xproject/typescript-typings": "^0.2.0",
+        "@0xproject/utils": "^0.5.2",
+        "@0xproject/web3-wrapper": "^0.6.1",
         "bintrees": "^1.0.2",
         "bn.js": "^4.11.8",
         "ethereumjs-abi": "^0.6.4",
@@ -114,6 +114,9 @@
         "uuid": "^3.1.0",
         "web3": "^0.20.0"
     },
+    "optionalDependencies": {
+        "@0xproject/migrations": "^0.0.1"
+    },
     "publishConfig": {
         "access": "public"
     }

packages/0x.js/src/0x.ts

@@ -1,5 +1,5 @@
 import { schemas, SchemaValidator } from '@0xproject/json-schemas';
-import { ECSignature, Order, SignedOrder, TransactionReceiptWithDecodedLogs } from '@0xproject/types';
+import { ECSignature, Order, Provider, SignedOrder, TransactionReceiptWithDecodedLogs } from '@0xproject/types';
 import { AbiDecoder, BigNumber, intervalUtils } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as ethUtil from 'ethereumjs-util';
@@ -15,7 +15,7 @@ import { OrderStateWatcher } from './order_watcher/order_state_watcher';
 import { zeroExConfigSchema } from './schemas/zero_ex_config_schema';
 import { zeroExPrivateNetworkConfigSchema } from './schemas/zero_ex_private_network_config_schema';
 import { zeroExPublicNetworkConfigSchema } from './schemas/zero_ex_public_network_config_schema';
-import { OrderStateWatcherConfig, Web3Provider, ZeroExConfig, ZeroExError } from './types';
+import { OrderStateWatcherConfig, ZeroExConfig, ZeroExError } from './types';
 import { assert } from './utils/assert';
 import { constants } from './utils/constants';
 import { decorators } from './utils/decorators';
@@ -115,10 +115,8 @@ export class ZeroEx {
     public static toUnitAmount(amount: BigNumber, decimals: number): BigNumber {
         assert.isValidBaseUnitAmount('amount', amount);
         assert.isNumber('decimals', decimals);
-
-        const aUnit = new BigNumber(10).pow(decimals);
-        const unit = amount.div(aUnit);
-        return unit;
+        const unitAmount = Web3Wrapper.toUnitAmount(amount, decimals);
+        return unitAmount;
     }
     /**
      * A baseUnit is defined as the smallest denomination of a token. An amount expressed in baseUnits
@@ -131,13 +129,7 @@ export class ZeroEx {
     public static toBaseUnitAmount(amount: BigNumber, decimals: number): BigNumber {
         assert.isBigNumber('amount', amount);
         assert.isNumber('decimals', decimals);
-
-        const unit = new BigNumber(10).pow(decimals);
-        const baseUnitAmount = amount.times(unit);
-        const hasDecimals = baseUnitAmount.decimalPlaces() !== 0;
-        if (hasDecimals) {
-            throw new Error(`Invalid unit amount: ${amount.toString()} - Too many decimal places`);
-        }
+        const baseUnitAmount = Web3Wrapper.toBaseUnitAmount(amount, decimals);
         return baseUnitAmount;
     }
     /**
@@ -153,12 +145,12 @@ export class ZeroEx {
     }
     /**
      * Instantiates a new ZeroEx instance that provides the public interface to the 0x.js library.
-     * @param   provider    The Web3.js Provider instance you would like the 0x.js library to use for interacting with
+     * @param   provider    The Provider instance you would like the 0x.js library to use for interacting with
      *                      the Ethereum network.
      * @param   config      The configuration object. Look up the type for the description.
      * @return  An instance of the 0x.js ZeroEx class.
      */
-    constructor(provider: Web3Provider, config: ZeroExConfig) {
+    constructor(provider: Provider, config: ZeroExConfig) {
         assert.isWeb3Provider('provider', provider);
         assert.doesConformToSchema('config', config, zeroExConfigSchema, [
             zeroExPrivateNetworkConfigSchema,
@@ -199,7 +191,7 @@ export class ZeroEx {
      * @param   provider    The Web3Provider you would like the 0x.js library to use from now on.
      * @param   networkId   The id of the network your provider is connected to
      */
-    public setProvider(provider: Web3Provider, networkId: number): void {
+    public setProvider(provider: Provider, networkId: number): void {
         this._web3Wrapper.setProvider(provider);
         (this.exchange as any)._invalidateContractInstances();
         (this.exchange as any)._setNetworkId(networkId);
@@ -225,7 +217,7 @@ export class ZeroEx {
      * This method currently supports TestRPC, Geth and Parity above and below V1.6.6
      * @param   orderHash       Hex encoded orderHash to sign.
      * @param   signerAddress   The hex encoded Ethereum address you wish to sign it with. This address
-     *          must be available via the Web3.Provider supplied to 0x.js.
+     *          must be available via the Provider supplied to 0x.js.
      * @param   shouldAddPersonalMessagePrefix  Some signers add the personal message prefix `\x19Ethereum Signed Message`
      *          themselves (e.g Parity Signer, Ledger, TestRPC) and others expect it to already be done by the client
      *          (e.g Metamask). Depending on which signer this request is going to, decide on whether to add the prefix

packages/0x.js/src/abstract/balance_and_proxy_allowance_fetcher.ts

@@ -0,0 +1,6 @@
+import { BigNumber } from '@0xproject/utils';
+
+export abstract class BalanceAndProxyAllowanceFetcher {
+    public abstract async getBalanceAsync(tokenAddress: string, userAddress: string): Promise<BigNumber>;
+    public abstract async getProxyAllowanceAsync(tokenAddress: string, userAddress: string): Promise<BigNumber>;
+}

packages/0x.js/src/abstract/order_filled_cancelled_fetcher.ts

@@ -0,0 +1,6 @@
+import { BigNumber } from '@0xproject/utils';
+
+export abstract class OrderFilledCancelledFetcher {
+    public abstract async getFilledTakerAmountAsync(orderHash: string): Promise<BigNumber>;
+    public abstract async getCancelledTakerAmountAsync(orderHash: string): Promise<BigNumber>;
+}

packages/0x.js/src/artifacts.ts

@@ -1,10 +1,10 @@
-import * as DummyTokenArtifact from './artifacts/DummyToken.json';
-import * as EtherTokenArtifact from './artifacts/EtherToken.json';
-import * as ExchangeArtifact from './artifacts/Exchange.json';
-import * as TokenArtifact from './artifacts/Token.json';
-import * as TokenRegistryArtifact from './artifacts/TokenRegistry.json';
-import * as TokenTransferProxyArtifact from './artifacts/TokenTransferProxy.json';
-import * as ZRXArtifact from './artifacts/ZRX.json';
+import * as DummyTokenArtifact from './compact_artifacts/DummyToken.json';
+import * as EtherTokenArtifact from './compact_artifacts/EtherToken.json';
+import * as ExchangeArtifact from './compact_artifacts/Exchange.json';
+import * as TokenArtifact from './compact_artifacts/Token.json';
+import * as TokenRegistryArtifact from './compact_artifacts/TokenRegistry.json';
+import * as TokenTransferProxyArtifact from './compact_artifacts/TokenTransferProxy.json';
+import * as ZRXArtifact from './compact_artifacts/ZRX.json';
 import { Artifact } from './types';
 
 export const artifacts = {

packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts

@@ -191,7 +191,12 @@ export class EtherTokenWrapper extends ContractWrapper {
             artifacts.EtherTokenArtifact,
             etherTokenAddress,
         );
-        const contractInstance = new EtherTokenContract(this._web3Wrapper, abi, address);
+        const contractInstance = new EtherTokenContract(
+            abi,
+            address,
+            this._web3Wrapper.getProvider(),
+            this._web3Wrapper.getContractDefaults(),
+        );
         etherTokenContract = contractInstance;
         this._etherTokenContractsByAddress[etherTokenAddress] = etherTokenContract;
         return etherTokenContract;

packages/0x.js/src/contract_wrappers/exchange_wrapper.ts

@@ -13,6 +13,8 @@ import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 
 import { artifacts } from '../artifacts';
+import { SimpleBalanceAndProxyAllowanceFetcher } from '../fetchers/simple_balance_and_proxy_allowance_fetcher';
+import { SimpleOrderFilledCancelledFetcher } from '../fetchers/simple_order_filled_cancelled_fetcher';
 import {
     BlockRange,
     EventCallback,
@@ -23,6 +25,7 @@ import {
     OrderAddresses,
     OrderCancellationRequest,
     OrderFillRequest,
+    OrderState,
     OrderTransactionOpts,
     OrderValues,
     ValidateOrderFillableOpts,
@@ -30,6 +33,7 @@ import {
 import { assert } from '../utils/assert';
 import { decorators } from '../utils/decorators';
 import { ExchangeTransferSimulator } from '../utils/exchange_transfer_simulator';
+import { OrderStateUtils } from '../utils/order_state_utils';
 import { OrderValidationUtils } from '../utils/order_validation_utils';
 import { utils } from '../utils/utils';
 
@@ -41,7 +45,6 @@ import {
     LogErrorContractEventArgs,
 } from './generated/exchange';
 import { TokenWrapper } from './token_wrapper';
-
 const SHOULD_VALIDATE_BY_DEFAULT = true;
 
 interface ExchangeContractErrCodesToMsgs {
@@ -170,7 +173,7 @@ export class ExchangeWrapper extends ContractWrapper {
      * @param   shouldThrowOnInsufficientBalanceOrAllowance Whether or not you wish for the contract call to throw
      *                                                      if upon execution the tokens cannot be transferred.
      * @param   takerAddress                                The user Ethereum address who would like to fill this order.
-     *                                                      Must be available via the supplied Web3.Provider
+     *                                                      Must be available via the supplied Provider
      *                                                      passed to 0x.js.
      * @param   orderTransactionOpts                        Optional arguments this method accepts.
      * @return  Transaction hash.
@@ -235,7 +238,7 @@ export class ExchangeWrapper extends ContractWrapper {
      *                                                      If set to false, the call will continue to fill subsequent
      *                                                      signedOrders even when some cannot be filled.
      * @param   takerAddress                                The user Ethereum address who would like to fill these
-     *                                                      orders. Must be available via the supplied Web3.Provider
+     *                                                      orders. Must be available via the supplied Provider
      *                                                      passed to 0x.js.
      * @param   orderTransactionOpts                        Optional arguments this method accepts.
      * @return  Transaction hash.
@@ -335,7 +338,7 @@ export class ExchangeWrapper extends ContractWrapper {
      *                                                          cannot be filled.
      * @param   takerAddress                                    The user Ethereum address who would like to fill
      *                                                          these orders. Must be available via the supplied
-     *                                                          Web3.Provider passed to 0x.js.
+     *                                                          Provider passed to 0x.js.
      * @param   orderTransactionOpts                            Optional arguments this method accepts.
      * @return  Transaction hash.
      */
@@ -416,7 +419,7 @@ export class ExchangeWrapper extends ContractWrapper {
      *                                  signedOrder you wish to fill.
      * @param   fillTakerTokenAmount    The total amount of the takerTokens you would like to fill.
      * @param   takerAddress            The user Ethereum address who would like to fill this order.
-     *                                  Must be available via the supplied Web3.Provider passed to 0x.js.
+     *                                  Must be available via the supplied Provider passed to 0x.js.
      * @param   orderTransactionOpts    Optional arguments this method accepts.
      * @return  Transaction hash.
      */
@@ -470,7 +473,7 @@ export class ExchangeWrapper extends ContractWrapper {
      * filled (each to the specified fillAmount) or aborted.
      * @param   orderFillRequests           An array of objects that conform to the OrderFillRequest interface.
      * @param   takerAddress                The user Ethereum address who would like to fill there orders.
-     *                                      Must be available via the supplied Web3.Provider passed to 0x.js.
+     *                                      Must be available via the supplied Provider passed to 0x.js.
      * @param   orderTransactionOpts        Optional arguments this method accepts.
      * @return  Transaction hash.
      */
@@ -765,7 +768,7 @@ export class ExchangeWrapper extends ContractWrapper {
      *                                  signedOrder you wish to fill.
      * @param   fillTakerTokenAmount    The total amount of the takerTokens you would like to fill.
      * @param   takerAddress            The user Ethereum address who would like to fill this order.
-     *                                  Must be available via the supplied Web3.Provider passed to 0x.js.
+     *                                  Must be available via the supplied Provider passed to 0x.js.
      */
     public async validateFillOrderThrowIfInvalidAsync(
         signedOrder: SignedOrder,
@@ -812,7 +815,7 @@ export class ExchangeWrapper extends ContractWrapper {
      *                                  signedOrder you wish to fill.
      * @param   fillTakerTokenAmount    The total amount of the takerTokens you would like to fill.
      * @param   takerAddress            The user Ethereum address who would like to fill this order.
-     *                                  Must be available via the supplied Web3.Provider passed to 0x.js.
+     *                                  Must be available via the supplied Provider passed to 0x.js.
      */
     public async validateFillOrKillOrderThrowIfInvalidAsync(
         signedOrder: SignedOrder,
@@ -873,6 +876,28 @@ export class ExchangeWrapper extends ContractWrapper {
             throw new Error(errMessage);
         }
     }
+    /**
+     * Gets the latest OrderState of a signedOrder
+     * @param   signedOrder   The signedOrder
+     * @param   stateLayer    Optional, desired blockchain state layer (defaults to latest).
+     * @return  OrderState of the signedOrder
+     */
+    public async getOrderStateAsync(
+        signedOrder: SignedOrder,
+        stateLayer: BlockParamLiteral = BlockParamLiteral.Latest,
+    ): Promise<OrderState> {
+        const simpleBalanceAndProxyAllowanceFetcher = new SimpleBalanceAndProxyAllowanceFetcher(
+            this._tokenWrapper,
+            stateLayer,
+        );
+        const simpleOrderFilledCancelledFetcher = new SimpleOrderFilledCancelledFetcher(this, stateLayer);
+        const orderStateUtils = new OrderStateUtils(
+            simpleBalanceAndProxyAllowanceFetcher,
+            simpleOrderFilledCancelledFetcher,
+        );
+        const orderState = orderStateUtils.getOrderStateAsync(signedOrder);
+        return orderState;
+    }
     /**
      * Returns the ZRX token address used by the exchange contract.
      * @return Address of ZRX token
@@ -920,7 +945,12 @@ export class ExchangeWrapper extends ContractWrapper {
             artifacts.ExchangeArtifact,
             this._contractAddressIfExists,
         );
-        const contractInstance = new ExchangeContract(this._web3Wrapper, abi, address);
+        const contractInstance = new ExchangeContract(
+            abi,
+            address,
+            this._web3Wrapper.getProvider(),
+            this._web3Wrapper.getContractDefaults(),
+        );
         this._exchangeContractIfExists = contractInstance;
         return this._exchangeContractIfExists;
     }

packages/0x.js/src/contract_wrappers/token_registry_wrapper.ts

@@ -121,7 +121,12 @@ export class TokenRegistryWrapper extends ContractWrapper {
             artifacts.TokenRegistryArtifact,
             this._contractAddressIfExists,
         );
-        const contractInstance = new TokenRegistryContract(this._web3Wrapper, abi, address);
+        const contractInstance = new TokenRegistryContract(
+            abi,
+            address,
+            this._web3Wrapper.getProvider(),
+            this._web3Wrapper.getContractDefaults(),
+        );
         this._tokenRegistryContractIfExists = contractInstance;
         return this._tokenRegistryContractIfExists;
     }

packages/0x.js/src/contract_wrappers/token_transfer_proxy_wrapper.ts

@@ -63,7 +63,12 @@ export class TokenTransferProxyWrapper extends ContractWrapper {
             artifacts.TokenTransferProxyArtifact,
             this._contractAddressIfExists,
         );
-        const contractInstance = new TokenTransferProxyContract(this._web3Wrapper, abi, address);
+        const contractInstance = new TokenTransferProxyContract(
+            abi,
+            address,
+            this._web3Wrapper.getProvider(),
+            this._web3Wrapper.getContractDefaults(),
+        );
         this._tokenTransferProxyContractIfExists = contractInstance;
         return this._tokenTransferProxyContractIfExists;
     }

packages/0x.js/src/contract_wrappers/token_wrapper.ts

@@ -421,7 +421,12 @@ export class TokenWrapper extends ContractWrapper {
             artifacts.TokenArtifact,
             normalizedTokenAddress,
         );
-        const contractInstance = new TokenContract(this._web3Wrapper, abi, address);
+        const contractInstance = new TokenContract(
+            abi,
+            address,
+            this._web3Wrapper.getProvider(),
+            this._web3Wrapper.getContractDefaults(),
+        );
         tokenContract = contractInstance;
         this._tokenContractsByAddress[normalizedTokenAddress] = tokenContract;
         return tokenContract;

packages/0x.js/src/fetchers/simple_balance_and_proxy_allowance_fetcher.ts

@@ -0,0 +1,28 @@
+import { BlockParamLiteral } from '@0xproject/types';
+import { BigNumber } from '@0xproject/utils';
+
+import { BalanceAndProxyAllowanceFetcher } from '../abstract/balance_and_proxy_allowance_fetcher';
+import { TokenWrapper } from '../contract_wrappers/token_wrapper';
+
+export class SimpleBalanceAndProxyAllowanceFetcher implements BalanceAndProxyAllowanceFetcher {
+    private _tokenWrapper: TokenWrapper;
+    private _defaultBlock: BlockParamLiteral;
+    constructor(token: TokenWrapper, defaultBlock: BlockParamLiteral) {
+        this._tokenWrapper = token;
+        this._defaultBlock = defaultBlock;
+    }
+    public async getBalanceAsync(tokenAddress: string, userAddress: string): Promise<BigNumber> {
+        const methodOpts = {
+            defaultBlock: this._defaultBlock,
+        };
+        const balance = this._tokenWrapper.getBalanceAsync(tokenAddress, userAddress, methodOpts);
+        return balance;
+    }
+    public async getProxyAllowanceAsync(tokenAddress: string, userAddress: string): Promise<BigNumber> {
+        const methodOpts = {
+            defaultBlock: this._defaultBlock,
+        };
+        const proxyAllowance = this._tokenWrapper.getProxyAllowanceAsync(tokenAddress, userAddress, methodOpts);
+        return proxyAllowance;
+    }
+}

packages/0x.js/src/fetchers/simple_order_filled_cancelled_fetcher.ts

@@ -0,0 +1,28 @@
+import { BlockParamLiteral } from '@0xproject/types';
+import { BigNumber } from '@0xproject/utils';
+
+import { OrderFilledCancelledFetcher } from '../abstract/order_filled_cancelled_fetcher';
+import { ExchangeWrapper } from '../contract_wrappers/exchange_wrapper';
+
+export class SimpleOrderFilledCancelledFetcher implements OrderFilledCancelledFetcher {
+    private _exchangeWrapper: ExchangeWrapper;
+    private _defaultBlock: BlockParamLiteral;
+    constructor(exchange: ExchangeWrapper, defaultBlock: BlockParamLiteral) {
+        this._exchangeWrapper = exchange;
+        this._defaultBlock = defaultBlock;
+    }
+    public async getFilledTakerAmountAsync(orderHash: string): Promise<BigNumber> {
+        const methodOpts = {
+            defaultBlock: this._defaultBlock,
+        };
+        const filledTakerAmount = this._exchangeWrapper.getFilledTakerAmountAsync(orderHash, methodOpts);
+        return filledTakerAmount;
+    }
+    public async getCancelledTakerAmountAsync(orderHash: string): Promise<BigNumber> {
+        const methodOpts = {
+            defaultBlock: this._defaultBlock,
+        };
+        const cancelledTakerAmount = this._exchangeWrapper.getCancelledTakerAmountAsync(orderHash, methodOpts);
+        return cancelledTakerAmount;
+    }
+}

packages/0x.js/src/globals.d.ts

@@ -1,11 +1,3 @@
-declare module 'web3_beta';
-declare module 'request-promise-native';
-
-// semver-sort declarations
-declare module 'semver-sort' {
-    const desc: (versions: string[]) => string[];
-}
-
 declare module '*.json' {
     const json: any;
     /* tslint:disable */

packages/0x.js/src/index.ts

@@ -11,7 +11,6 @@ export {
     OrderCancellationRequest,
     OrderFillRequest,
     ContractEventArgs,
-    Web3Provider,
     ZeroExConfig,
     MethodOpts,
     OrderTransactionOpts,
@@ -32,6 +31,7 @@ export {
     ContractEventArg,
     LogWithDecodedArgs,
     Order,
+    Provider,
     SignedOrder,
     ECSignature,
     TransactionReceipt,

packages/0x.js/src/order_watcher/event_watcher.ts

@@ -13,7 +13,7 @@ enum LogEventState {
     Added,
 }
 
-/*
+/**
  * The EventWatcher watches for blockchain events at the specified block confirmation
  * depth.
  */

packages/0x.js/src/order_watcher/expiration_watcher.ts

@@ -48,6 +48,9 @@ export class ExpirationWatcher {
         this._orderHashByExpirationRBTree.insert(orderHash);
     }
     public removeOrder(orderHash: string): void {
+        if (_.isUndefined(this._expiration[orderHash])) {
+            return; // noop since order already removed
+        }
         this._orderHashByExpirationRBTree.remove(orderHash);
         delete this._expiration[orderHash];
     }

packages/0x.js/src/order_watcher/order_state_watcher.ts

@@ -87,7 +87,7 @@ export class OrderStateWatcher {
             _.isUndefined(config) || _.isUndefined(config.stateLayer) ? BlockParamLiteral.Latest : config.stateLayer;
         this._eventWatcher = new EventWatcher(web3Wrapper, pollingIntervalIfExistsMs, stateLayer);
         this._balanceAndProxyAllowanceLazyStore = new BalanceAndProxyAllowanceLazyStore(token, stateLayer);
-        this._orderFilledCancelledLazyStore = new OrderFilledCancelledLazyStore(exchange);
+        this._orderFilledCancelledLazyStore = new OrderFilledCancelledLazyStore(exchange, stateLayer);
         this._orderStateUtils = new OrderStateUtils(
             this._balanceAndProxyAllowanceLazyStore,
             this._orderFilledCancelledLazyStore,
@@ -131,7 +131,7 @@ export class OrderStateWatcher {
         }
         delete this._orderByOrderHash[orderHash];
         delete this._orderStateByOrderHashCache[orderHash];
-        const exchange = (this._orderFilledCancelledLazyStore as any)._exchange as ExchangeWrapper;
+        const exchange = (this._orderFilledCancelledLazyStore as any)._exchangeWrapper as ExchangeWrapper;
         const zrxTokenAddress = exchange.getZRXTokenAddress();
 
         this._removeFromDependentOrderHashes(signedOrder.maker, zrxTokenAddress, orderHash);
@@ -374,7 +374,7 @@ export class OrderStateWatcher {
         }
     }
     private _getZRXTokenAddress(): string {
-        const exchange = (this._orderFilledCancelledLazyStore as any)._exchange as ExchangeWrapper;
+        const exchange = (this._orderFilledCancelledLazyStore as any)._exchangeWrapper as ExchangeWrapper;
         const zrxTokenAddress = exchange.getZRXTokenAddress();
         return zrxTokenAddress;
     }

packages/0x.js/src/stores/balance_proxy_allowance_lazy_store.ts

@@ -2,13 +2,14 @@ import { BlockParamLiteral } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 
+import { BalanceAndProxyAllowanceFetcher } from '../abstract/balance_and_proxy_allowance_fetcher';
 import { TokenWrapper } from '../contract_wrappers/token_wrapper';
 
 /**
  * Copy on read store for balances/proxyAllowances of tokens/accounts
  */
-export class BalanceAndProxyAllowanceLazyStore {
-    private _token: TokenWrapper;
+export class BalanceAndProxyAllowanceLazyStore implements BalanceAndProxyAllowanceFetcher {
+    private _tokenWrapper: TokenWrapper;
     private _defaultBlock: BlockParamLiteral;
     private _balance: {
         [tokenAddress: string]: {
@@ -21,7 +22,7 @@ export class BalanceAndProxyAllowanceLazyStore {
         };
     };
     constructor(token: TokenWrapper, defaultBlock: BlockParamLiteral) {
-        this._token = token;
+        this._tokenWrapper = token;
         this._defaultBlock = defaultBlock;
         this._balance = {};
         this._proxyAllowance = {};
@@ -31,7 +32,7 @@ export class BalanceAndProxyAllowanceLazyStore {
             const methodOpts = {
                 defaultBlock: this._defaultBlock,
             };
-            const balance = await this._token.getBalanceAsync(tokenAddress, userAddress, methodOpts);
+            const balance = await this._tokenWrapper.getBalanceAsync(tokenAddress, userAddress, methodOpts);
             this.setBalance(tokenAddress, userAddress, balance);
         }
         const cachedBalance = this._balance[tokenAddress][userAddress];
@@ -59,7 +60,11 @@ export class BalanceAndProxyAllowanceLazyStore {
             const methodOpts = {
                 defaultBlock: this._defaultBlock,
             };
-            const proxyAllowance = await this._token.getProxyAllowanceAsync(tokenAddress, userAddress, methodOpts);
+            const proxyAllowance = await this._tokenWrapper.getProxyAllowanceAsync(
+                tokenAddress,
+                userAddress,
+                methodOpts,
+            );
             this.setProxyAllowance(tokenAddress, userAddress, proxyAllowance);
         }
         const cachedProxyAllowance = this._proxyAllowance[tokenAddress][userAddress];

packages/0x.js/src/stores/order_filled_cancelled_lazy_store.ts

@@ -2,30 +2,33 @@ import { BlockParamLiteral } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 
+import { OrderFilledCancelledFetcher } from '../abstract/order_filled_cancelled_fetcher';
 import { ExchangeWrapper } from '../contract_wrappers/exchange_wrapper';
 
 /**
  * Copy on read store for filled/cancelled taker amounts
  */
-export class OrderFilledCancelledLazyStore {
-    private _exchange: ExchangeWrapper;
+export class OrderFilledCancelledLazyStore implements OrderFilledCancelledFetcher {
+    private _exchangeWrapper: ExchangeWrapper;
+    private _defaultBlock: BlockParamLiteral;
     private _filledTakerAmount: {
         [orderHash: string]: BigNumber;
     };
     private _cancelledTakerAmount: {
         [orderHash: string]: BigNumber;
     };
-    constructor(exchange: ExchangeWrapper) {
-        this._exchange = exchange;
+    constructor(exchange: ExchangeWrapper, defaultBlock: BlockParamLiteral) {
+        this._exchangeWrapper = exchange;
+        this._defaultBlock = defaultBlock;
         this._filledTakerAmount = {};
         this._cancelledTakerAmount = {};
     }
     public async getFilledTakerAmountAsync(orderHash: string): Promise<BigNumber> {
         if (_.isUndefined(this._filledTakerAmount[orderHash])) {
             const methodOpts = {
-                defaultBlock: BlockParamLiteral.Pending,
+                defaultBlock: this._defaultBlock,
             };
-            const filledTakerAmount = await this._exchange.getFilledTakerAmountAsync(orderHash, methodOpts);
+            const filledTakerAmount = await this._exchangeWrapper.getFilledTakerAmountAsync(orderHash, methodOpts);
             this.setFilledTakerAmount(orderHash, filledTakerAmount);
         }
         const cachedFilled = this._filledTakerAmount[orderHash];
@@ -40,9 +43,12 @@ export class OrderFilledCancelledLazyStore {
     public async getCancelledTakerAmountAsync(orderHash: string): Promise<BigNumber> {
         if (_.isUndefined(this._cancelledTakerAmount[orderHash])) {
             const methodOpts = {
-                defaultBlock: BlockParamLiteral.Pending,
+                defaultBlock: this._defaultBlock,
             };
-            const cancelledTakerAmount = await this._exchange.getCancelledTakerAmountAsync(orderHash, methodOpts);
+            const cancelledTakerAmount = await this._exchangeWrapper.getCancelledTakerAmountAsync(
+                orderHash,
+                methodOpts,
+            );
             this.setCancelledTakerAmount(orderHash, cancelledTakerAmount);
         }
         const cachedCancelled = this._cancelledTakerAmount[orderHash];

packages/0x.js/src/types.ts

@@ -155,20 +155,12 @@ export type AsyncMethod = (...args: any[]) => Promise<any>;
 export type SyncMethod = (...args: any[]) => any;
 
 /**
- * We re-export the `Web3.Provider` type specified in the Web3 Typescript typings
- * since it is the type of the `provider` argument to the `ZeroEx` constructor.
- * It is however a `Web3` library type, not a native `0x.js` type. To learn more
- * about providers, visit https://0xproject.com/wiki#Web3-Provider-Explained
- */
-export type Web3Provider = Web3.Provider;
-
-/*
- * orderExpirationCheckingIntervalMs: How often to check for expired orders. Default: 50
- * eventPollingIntervalMs: How often to poll the Ethereum node for new events. Default: 200
+ * orderExpirationCheckingIntervalMs: How often to check for expired orders. Default=50.
+ * eventPollingIntervalMs: How often to poll the Ethereum node for new events. Default=200.
  * expirationMarginMs: Amount of time before order expiry that you'd like to be notified
- * of an orders expiration. Default: 0
- * cleanupJobIntervalMs: How often to run a cleanup job which revalidates all the orders. Defaults: 1h
- * stateLayer: Optional blockchain state layer OrderWatcher will monitor for new events. Default: latest
+ * of an orders expiration. Default=0.
+ * cleanupJobIntervalMs: How often to run a cleanup job which revalidates all the orders. Default=1hr.
+ * stateLayer: Optional blockchain state layer OrderWatcher will monitor for new events. Default=latest.
  */
 export interface OrderStateWatcherConfig {
     orderExpirationCheckingIntervalMs?: number;
@@ -178,7 +170,7 @@ export interface OrderStateWatcherConfig {
     stateLayer: BlockParamLiteral;
 }
 
-/*
+/**
  * networkId: The id of the underlying ethereum network your provider is connected to. (1-mainnet, 3-ropsten, 4-rinkeby, 42-kovan, 50-testrpc)
  * gasPrice: Gas price to use with every transaction
  * exchangeContractAddress: The address of an exchange contract to use
@@ -209,7 +201,7 @@ export interface Artifact {
     };
 }
 
-/*
+/**
  * expectedFillTakerTokenAmount: If specified, the validation method will ensure that the
  * supplied order maker has a sufficient allowance/balance to fill this amount of the order's
  * takerTokenAmount. If not specified, the validation method ensures that the maker has a sufficient
@@ -219,7 +211,7 @@ export interface ValidateOrderFillableOpts {
     expectedFillTakerTokenAmount?: BigNumber;
 }
 
-/*
+/**
  * defaultBlock: The block up to which to query the blockchain state. Setting this to a historical block number
  * let's the user query the blockchain's state at an arbitrary point in time. In order for this to work, the
  * backing  Ethereum node must keep the entire historical state of the chain (e.g setting `--pruning=archive`
@@ -229,7 +221,7 @@ export interface MethodOpts {
     defaultBlock?: BlockParam;
 }
 
-/*
+/**
  * gasPrice: Gas price in Wei to use for a transaction
  * gasLimit: The amount of gas to send with a transaction
  */
@@ -238,9 +230,9 @@ export interface TransactionOpts {
     gasLimit?: number;
 }
 
-/*
+/**
  * shouldValidate: Flag indicating whether the library should make attempts to validate a transaction before
- * broadcasting it. For example, order has a valid signature, maker has sufficient funds, etc. Default: true
+ * broadcasting it. For example, order has a valid signature, maker has sufficient funds, etc. Default=true.
  */
 export interface OrderTransactionOpts extends TransactionOpts {
     shouldValidate?: boolean;

packages/0x.js/src/utils/order_state_utils.ts

@@ -3,17 +3,17 @@ import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 
 import { ZeroEx } from '../0x';
+import { BalanceAndProxyAllowanceFetcher } from '../abstract/balance_and_proxy_allowance_fetcher';
+import { OrderFilledCancelledFetcher } from '../abstract/order_filled_cancelled_fetcher';
 import { ExchangeWrapper } from '../contract_wrappers/exchange_wrapper';
 import { RemainingFillableCalculator } from '../order_watcher/remaining_fillable_calculator';
-import { BalanceAndProxyAllowanceLazyStore } from '../stores/balance_proxy_allowance_lazy_store';
-import { OrderFilledCancelledLazyStore } from '../stores/order_filled_cancelled_lazy_store';
 import { ExchangeContractErrs, OrderRelevantState, OrderState, OrderStateInvalid, OrderStateValid } from '../types';
 
 const ACCEPTABLE_RELATIVE_ROUNDING_ERROR = 0.0001;
 
 export class OrderStateUtils {
-    private _balanceAndProxyAllowanceLazyStore: BalanceAndProxyAllowanceLazyStore;
-    private _orderFilledCancelledLazyStore: OrderFilledCancelledLazyStore;
+    private _balanceAndProxyAllowanceFetcher: BalanceAndProxyAllowanceFetcher;
+    private _orderFilledCancelledFetcher: OrderFilledCancelledFetcher;
     private static _validateIfOrderIsValid(signedOrder: SignedOrder, orderRelevantState: OrderRelevantState): void {
         const unavailableTakerTokenAmount = orderRelevantState.cancelledTakerTokenAmount.add(
             orderRelevantState.filledTakerTokenAmount,
@@ -49,11 +49,11 @@ export class OrderStateUtils {
         }
     }
     constructor(
-        balanceAndProxyAllowanceLazyStore: BalanceAndProxyAllowanceLazyStore,
-        orderFilledCancelledLazyStore: OrderFilledCancelledLazyStore,
+        balanceAndProxyAllowanceFetcher: BalanceAndProxyAllowanceFetcher,
+        orderFilledCancelledFetcher: OrderFilledCancelledFetcher,
     ) {
-        this._balanceAndProxyAllowanceLazyStore = balanceAndProxyAllowanceLazyStore;
-        this._orderFilledCancelledLazyStore = orderFilledCancelledLazyStore;
+        this._balanceAndProxyAllowanceFetcher = balanceAndProxyAllowanceFetcher;
+        this._orderFilledCancelledFetcher = orderFilledCancelledFetcher;
     }
     public async getOrderStateAsync(signedOrder: SignedOrder): Promise<OrderState> {
         const orderRelevantState = await this.getOrderRelevantStateAsync(signedOrder);
@@ -80,27 +80,27 @@ export class OrderStateUtils {
         // If we pass it from the instantiator - there is no opportunity to get it there
         // because JS doesn't support async constructors.
         // Moreover - it's cached under the hood so it's equivalent to an async constructor.
-        const exchange = (this._orderFilledCancelledLazyStore as any)._exchange as ExchangeWrapper;
+        const exchange = (this._orderFilledCancelledFetcher as any)._exchangeWrapper as ExchangeWrapper;
         const zrxTokenAddress = exchange.getZRXTokenAddress();
         const orderHash = ZeroEx.getOrderHashHex(signedOrder);
-        const makerBalance = await this._balanceAndProxyAllowanceLazyStore.getBalanceAsync(
+        const makerBalance = await this._balanceAndProxyAllowanceFetcher.getBalanceAsync(
             signedOrder.makerTokenAddress,
             signedOrder.maker,
         );
-        const makerProxyAllowance = await this._balanceAndProxyAllowanceLazyStore.getProxyAllowanceAsync(
+        const makerProxyAllowance = await this._balanceAndProxyAllowanceFetcher.getProxyAllowanceAsync(
             signedOrder.makerTokenAddress,
             signedOrder.maker,
         );
-        const makerFeeBalance = await this._balanceAndProxyAllowanceLazyStore.getBalanceAsync(
+        const makerFeeBalance = await this._balanceAndProxyAllowanceFetcher.getBalanceAsync(
             zrxTokenAddress,
             signedOrder.maker,
         );
-        const makerFeeProxyAllowance = await this._balanceAndProxyAllowanceLazyStore.getProxyAllowanceAsync(
+        const makerFeeProxyAllowance = await this._balanceAndProxyAllowanceFetcher.getProxyAllowanceAsync(
             zrxTokenAddress,
             signedOrder.maker,
         );
-        const filledTakerTokenAmount = await this._orderFilledCancelledLazyStore.getFilledTakerAmountAsync(orderHash);
-        const cancelledTakerTokenAmount = await this._orderFilledCancelledLazyStore.getCancelledTakerAmountAsync(
+        const filledTakerTokenAmount = await this._orderFilledCancelledFetcher.getFilledTakerAmountAsync(orderHash);
+        const cancelledTakerTokenAmount = await this._orderFilledCancelledFetcher.getCancelledTakerAmountAsync(
             orderHash,
         );
         const unavailableTakerTokenAmount = await exchange.getUnavailableTakerAmountAsync(orderHash);

packages/0x.js/test/0x.js_test.ts

@@ -1,16 +1,23 @@
+import { Deployer } from '@0xproject/deployer';
 import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
+// HACK: This dependency is optional since it is only available when run from within
+// the monorepo. tslint doesn't handle optional dependencies
+// tslint:disable-next-line:no-implicit-dependencies
+import { runMigrationsAsync } from '@0xproject/migrations';
 import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
 import * as _ from 'lodash';
 import 'mocha';
+import * as path from 'path';
 import * as Sinon from 'sinon';
 
 import { ApprovalContractEventArgs, LogWithDecodedArgs, Order, TokenEvents, ZeroEx } from '../src';
 
 import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
+import { deployer } from './utils/deployer';
 import { TokenUtils } from './utils/token_utils';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
 chaiSetup.configure();
@@ -19,10 +26,14 @@ const expect = chai.expect;
 const SHOULD_ADD_PERSONAL_MESSAGE_PREFIX = false;
 
 describe('ZeroEx library', () => {
-    const config = {
-        networkId: constants.TESTRPC_NETWORK_ID,
-    };
-    const zeroEx = new ZeroEx(web3.currentProvider, config);
+    let zeroEx: ZeroEx;
+    before(async () => {
+        await runMigrationsAsync(deployer);
+        const config = {
+            networkId: constants.TESTRPC_NETWORK_ID,
+        };
+        zeroEx = new ZeroEx(provider, config);
+    });
     describe('#setProvider', () => {
         it('overrides provider in nested web3s and invalidates contractInstances', async () => {
             // Instantiate the contract instances with the current provider
@@ -31,10 +42,9 @@ describe('ZeroEx library', () => {
             expect((zeroEx.exchange as any)._exchangeContractIfExists).to.not.be.undefined();
             expect((zeroEx.tokenRegistry as any)._tokenRegistryContractIfExists).to.not.be.undefined();
 
-            const newProvider = web3Factory.getRpcProvider();
             // Add property to newProvider so that we can differentiate it from old provider
-            (newProvider as any).zeroExTestId = 1;
-            zeroEx.setProvider(newProvider, constants.TESTRPC_NETWORK_ID);
+            (provider as any).zeroExTestId = 1;
+            zeroEx.setProvider(provider, constants.TESTRPC_NETWORK_ID);
 
             // Check that contractInstances with old provider are removed after provider update
             expect((zeroEx.exchange as any)._exchangeContractIfExists).to.be.undefined();
@@ -278,7 +288,7 @@ describe('ZeroEx library', () => {
                 exchangeContractAddress: ZeroEx.NULL_ADDRESS,
                 networkId: constants.TESTRPC_NETWORK_ID,
             };
-            const zeroExWithWrongExchangeAddress = new ZeroEx(web3.currentProvider, zeroExConfig);
+            const zeroExWithWrongExchangeAddress = new ZeroEx(provider, zeroExConfig);
             expect(zeroExWithWrongExchangeAddress.exchange.getContractAddress()).to.be.equal(ZeroEx.NULL_ADDRESS);
         });
         it('allows to specify token registry token contract address', async () => {
@@ -286,7 +296,7 @@ describe('ZeroEx library', () => {
                 tokenRegistryContractAddress: ZeroEx.NULL_ADDRESS,
                 networkId: constants.TESTRPC_NETWORK_ID,
             };
-            const zeroExWithWrongTokenRegistryAddress = new ZeroEx(web3.currentProvider, zeroExConfig);
+            const zeroExWithWrongTokenRegistryAddress = new ZeroEx(provider, zeroExConfig);
             expect(zeroExWithWrongTokenRegistryAddress.tokenRegistry.getContractAddress()).to.be.equal(
                 ZeroEx.NULL_ADDRESS,
             );

packages/0x.js/test/artifacts_test.ts

@@ -1,5 +1,5 @@
+import { web3Factory } from '@0xproject/dev-utils';
 import * as fs from 'fs';
-import HDWalletProvider = require('truffle-hdwallet-provider');
 
 import { ZeroEx } from '../src';
 
@@ -14,14 +14,11 @@ const TIMEOUT = 10000;
 describe('Artifacts', () => {
     describe('contracts are deployed on kovan', () => {
         const kovanRpcUrl = constants.KOVAN_RPC_URL;
-        const packageJSONContent = fs.readFileSync('package.json', 'utf-8');
-        const packageJSON = JSON.parse(packageJSONContent);
-        const mnemonic = packageJSON.config.mnemonic;
-        const web3Provider = new HDWalletProvider(mnemonic, kovanRpcUrl);
+        const provider = web3Factory.create({ rpcUrl: kovanRpcUrl }).currentProvider;
         const config = {
             networkId: constants.KOVAN_NETWORK_ID,
         };
-        const zeroEx = new ZeroEx(web3Provider, config);
+        const zeroEx = new ZeroEx(provider, config);
         it('token registry contract is deployed', async () => {
             await (zeroEx.tokenRegistry as any)._getTokenRegistryContractAsync();
         }).timeout(TIMEOUT);
@@ -34,14 +31,11 @@ describe('Artifacts', () => {
     });
     describe('contracts are deployed on ropsten', () => {
         const ropstenRpcUrl = constants.ROPSTEN_RPC_URL;
-        const packageJSONContent = fs.readFileSync('package.json', 'utf-8');
-        const packageJSON = JSON.parse(packageJSONContent);
-        const mnemonic = packageJSON.config.mnemonic;
-        const web3Provider = new HDWalletProvider(mnemonic, ropstenRpcUrl);
+        const provider = web3Factory.create({ rpcUrl: ropstenRpcUrl }).currentProvider;
         const config = {
             networkId: constants.ROPSTEN_NETWORK_ID,
         };
-        const zeroEx = new ZeroEx(web3Provider, config);
+        const zeroEx = new ZeroEx(provider, config);
         it('token registry contract is deployed', async () => {
             await (zeroEx.tokenRegistry as any)._getTokenRegistryContractAsync();
         }).timeout(TIMEOUT);

packages/0x.js/test/assert_test.ts

@@ -6,15 +6,15 @@ import { ZeroEx } from '../src';
 import { assert } from '../src/utils/assert';
 
 import { constants } from './utils/constants';
+import { provider } from './utils/web3_wrapper';
 
 const expect = chai.expect;
 
 describe('Assertion library', () => {
-    const web3 = web3Factory.create();
     const config = {
         networkId: constants.TESTRPC_NETWORK_ID,
     };
-    const zeroEx = new ZeroEx(web3.currentProvider, config);
+    const zeroEx = new ZeroEx(provider, config);
     describe('#isSenderAddressHexAsync', () => {
         it('throws when address is invalid', async () => {
             const address = '0xdeadbeef';

packages/0x.js/test/ether_token_wrapper_test.ts

@@ -1,8 +1,8 @@
 import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
 import { BigNumber } from '@0xproject/utils';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
 import 'mocha';
-import * as Web3 from 'web3';
 
 import {
     ApprovalContractEventArgs,
@@ -23,7 +23,7 @@ import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
 import { reportNodeCallbackErrors } from './utils/report_callback_errors';
 import { TokenUtils } from './utils/token_utils';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -54,12 +54,12 @@ describe('EtherTokenWrapper', () => {
     const depositAmount = new BigNumber(42);
     const withdrawalAmount = new BigNumber(42);
     before(async () => {
-        zeroEx = new ZeroEx(web3.currentProvider, zeroExConfig);
+        zeroEx = new ZeroEx(provider, zeroExConfig);
         tokens = await zeroEx.tokenRegistry.getTokensAsync();
         userAddresses = await zeroEx.getAvailableAddressesAsync();
         addressWithETH = userAddresses[0];
         wethContractAddress = zeroEx.etherToken.getContractAddressIfExists() as string;
-        depositWeiAmount = (zeroEx as any)._web3Wrapper.toWei(new BigNumber(5));
+        depositWeiAmount = Web3Wrapper.toWei(new BigNumber(5));
         decimalPlaces = 7;
         addressWithoutFunds = userAddresses[1];
     });
@@ -78,7 +78,7 @@ describe('EtherTokenWrapper', () => {
             const UNKNOWN_NETWORK_NETWORK_ID = 10;
             expect(
                 () =>
-                    new ZeroEx(web3.currentProvider, {
+                    new ZeroEx(provider, {
                         networkId: UNKNOWN_NETWORK_NETWORK_ID,
                     } as any),
             ).to.throw();
@@ -105,7 +105,7 @@ describe('EtherTokenWrapper', () => {
         it('should throw if user has insufficient ETH balance for deposit', async () => {
             const preETHBalance = await (zeroEx as any)._web3Wrapper.getBalanceInWeiAsync(addressWithETH);
 
-            const extraETHBalance = (zeroEx as any)._web3Wrapper.toWei(5, 'ether');
+            const extraETHBalance = Web3Wrapper.toWei(new BigNumber(5));
             const overETHBalanceinWei = preETHBalance.add(extraETHBalance);
 
             return expect(
@@ -260,8 +260,7 @@ describe('EtherTokenWrapper', () => {
                     callbackNeverToBeCalled,
                 );
                 const callbackToBeCalled = reportNodeCallbackErrors(done)();
-                const newProvider = web3Factory.getRpcProvider();
-                zeroEx.setProvider(newProvider, constants.TESTRPC_NETWORK_ID);
+                zeroEx.setProvider(provider, constants.TESTRPC_NETWORK_ID);
                 await zeroEx.etherToken.depositAsync(etherTokenAddress, transferAmount, addressWithETH);
                 zeroEx.etherToken.subscribe(
                     etherTokenAddress,

packages/0x.js/test/event_watcher_test.ts

@@ -5,7 +5,6 @@ import * as chai from 'chai';
 import * as _ from 'lodash';
 import 'mocha';
 import * as Sinon from 'sinon';
-import * as Web3 from 'web3';
 
 import { LogEvent } from '../src';
 import { EventWatcher } from '../src/order_watcher/event_watcher';
@@ -13,12 +12,12 @@ import { DoneCallback } from '../src/types';
 
 import { chaiSetup } from './utils/chai_setup';
 import { reportNodeCallbackErrors } from './utils/report_callback_errors';
+import { provider } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
 
 describe('EventWatcher', () => {
-    let web3: Web3;
     let stubs: Sinon.SinonStub[] = [];
     let eventWatcher: EventWatcher;
     let web3Wrapper: Web3Wrapper;
@@ -53,9 +52,8 @@ describe('EventWatcher', () => {
         transactionIndex: 0,
     };
     before(async () => {
-        web3 = web3Factory.create();
         const pollingIntervalMs = 10;
-        web3Wrapper = new Web3Wrapper(web3.currentProvider);
+        web3Wrapper = new Web3Wrapper(provider);
         eventWatcher = new EventWatcher(web3Wrapper, pollingIntervalMs);
     });
     afterEach(() => {

packages/0x.js/test/exchange_transfer_simulator_test.ts

@@ -9,7 +9,7 @@ import { ExchangeTransferSimulator } from '../src/utils/exchange_transfer_simula
 
 import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -19,7 +19,7 @@ describe('ExchangeTransferSimulator', () => {
     const config = {
         networkId: constants.TESTRPC_NETWORK_ID,
     };
-    const zeroEx = new ZeroEx(web3.currentProvider, config);
+    const zeroEx = new ZeroEx(provider, config);
     const transferAmount = new BigNumber(5);
     let userAddresses: string[];
     let tokens: Token[];

packages/0x.js/test/exchange_wrapper_test.ts

@@ -4,7 +4,6 @@ import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
 import * as _ from 'lodash';
 import 'mocha';
-import * as Web3 from 'web3';
 
 import {
     BlockRange,
@@ -15,6 +14,7 @@ import {
     LogFillContractEventArgs,
     OrderCancellationRequest,
     OrderFillRequest,
+    OrderState,
     SignedOrder,
     Token,
     ZeroEx,
@@ -26,7 +26,7 @@ import { constants } from './utils/constants';
 import { FillScenarios } from './utils/fill_scenarios';
 import { reportNodeCallbackErrors } from './utils/report_callback_errors';
 import { TokenUtils } from './utils/token_utils';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -46,7 +46,7 @@ describe('ExchangeWrapper', () => {
         networkId: constants.TESTRPC_NETWORK_ID,
     };
     before(async () => {
-        zeroEx = new ZeroEx(web3.currentProvider, config);
+        zeroEx = new ZeroEx(provider, config);
         exchangeContractAddress = zeroEx.exchange.getContractAddress();
         userAddresses = await zeroEx.getAvailableAddressesAsync();
         tokens = await zeroEx.tokenRegistry.getTokensAsync();
@@ -977,8 +977,7 @@ describe('ExchangeWrapper', () => {
                 );
                 zeroEx.exchange.subscribe(ExchangeEvents.LogFill, indexFilterValues, callbackNeverToBeCalled);
 
-                const newProvider = web3Factory.getRpcProvider();
-                zeroEx.setProvider(newProvider, constants.TESTRPC_NETWORK_ID);
+                zeroEx.setProvider(provider, constants.TESTRPC_NETWORK_ID);
 
                 const callback = reportNodeCallbackErrors(done)(
                     (logEvent: DecodedLogEvent<LogFillContractEventArgs>) => {
@@ -1156,4 +1155,41 @@ describe('ExchangeWrapper', () => {
             expect(args.maker).to.be.equal(differentMakerAddress);
         });
     });
+    describe('#getOrderStateAsync', () => {
+        let maker: string;
+        let taker: string;
+        let makerToken: Token;
+        let takerToken: Token;
+        let signedOrder: SignedOrder;
+        let orderState: OrderState;
+        const fillableAmount = ZeroEx.toBaseUnitAmount(new BigNumber(5), constants.ZRX_DECIMALS);
+        before(async () => {
+            [, maker, taker] = userAddresses;
+            tokens = await zeroEx.tokenRegistry.getTokensAsync();
+            [makerToken, takerToken] = tokenUtils.getDummyTokens();
+        });
+        it('should report orderStateValid when order is fillable', async () => {
+            signedOrder = await fillScenarios.createFillableSignedOrderAsync(
+                makerToken.address,
+                takerToken.address,
+                maker,
+                taker,
+                fillableAmount,
+            );
+            orderState = await zeroEx.exchange.getOrderStateAsync(signedOrder);
+            expect(orderState.isValid).to.be.true();
+        });
+        it('should report orderStateInvalid when maker allowance set to 0', async () => {
+            signedOrder = await fillScenarios.createFillableSignedOrderAsync(
+                makerToken.address,
+                takerToken.address,
+                maker,
+                taker,
+                fillableAmount,
+            );
+            await zeroEx.token.setProxyAllowanceAsync(makerToken.address, maker, new BigNumber(0));
+            orderState = await zeroEx.exchange.getOrderStateAsync(signedOrder);
+            expect(orderState.isValid).to.be.false();
+        });
+    });
 }); // tslint:disable:max-file-line-count

packages/0x.js/test/expiration_watcher_test.ts

@@ -4,7 +4,6 @@ import * as chai from 'chai';
 import * as _ from 'lodash';
 import 'mocha';
 import * as Sinon from 'sinon';
-import * as Web3 from 'web3';
 
 import { ZeroEx } from '../src/0x';
 import { ExpirationWatcher } from '../src/order_watcher/expiration_watcher';
@@ -16,7 +15,7 @@ import { constants } from './utils/constants';
 import { FillScenarios } from './utils/fill_scenarios';
 import { reportNoErrorCallbackErrors } from './utils/report_callback_errors';
 import { TokenUtils } from './utils/token_utils';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -44,7 +43,7 @@ describe('ExpirationWatcher', () => {
         const config = {
             networkId: constants.TESTRPC_NETWORK_ID,
         };
-        zeroEx = new ZeroEx(web3.currentProvider, config);
+        zeroEx = new ZeroEx(provider, config);
         exchangeContractAddress = zeroEx.exchange.getContractAddress();
         userAddresses = await zeroEx.getAvailableAddressesAsync();
         tokens = await zeroEx.tokenRegistry.getTokensAsync();

packages/0x.js/test/order_state_watcher_test.ts

@@ -3,7 +3,6 @@ import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
 import * as _ from 'lodash';
 import 'mocha';
-import * as Web3 from 'web3';
 
 import {
     ExchangeContractErrs,
@@ -23,7 +22,7 @@ import { constants } from './utils/constants';
 import { FillScenarios } from './utils/fill_scenarios';
 import { reportNodeCallbackErrors } from './utils/report_callback_errors';
 import { TokenUtils } from './utils/token_utils';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 const TIMEOUT_MS = 150;
 
@@ -51,7 +50,7 @@ describe('OrderStateWatcher', () => {
     const decimals = constants.ZRX_DECIMALS;
     const fillableAmount = ZeroEx.toBaseUnitAmount(new BigNumber(5), decimals);
     before(async () => {
-        zeroEx = new ZeroEx(web3.currentProvider, config);
+        zeroEx = new ZeroEx(provider, config);
         orderStateWatcher = zeroEx.createOrderStateWatcher();
         exchangeContractAddress = zeroEx.exchange.getContractAddress();
         userAddresses = await zeroEx.getAvailableAddressesAsync();

packages/0x.js/test/order_validation_test.ts

@@ -3,7 +3,6 @@ import { BlockParamLiteral } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
 import * as Sinon from 'sinon';
-import * as Web3 from 'web3';
 
 import { ExchangeContractErrs, SignedOrder, Token, ZeroEx, ZeroExError } from '../src';
 import { TradeSide, TransferType } from '../src/types';
@@ -14,7 +13,7 @@ import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
 import { FillScenarios } from './utils/fill_scenarios';
 import { TokenUtils } from './utils/token_utils';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -40,7 +39,7 @@ describe('OrderValidation', () => {
         networkId: constants.TESTRPC_NETWORK_ID,
     };
     before(async () => {
-        zeroEx = new ZeroEx(web3.currentProvider, config);
+        zeroEx = new ZeroEx(provider, config);
         exchangeContractAddress = zeroEx.exchange.getContractAddress();
         userAddresses = await zeroEx.getAvailableAddressesAsync();
         [coinbase, makerAddress, takerAddress, feeRecipient] = userAddresses;

packages/0x.js/test/subscription_test.ts

@@ -3,7 +3,6 @@ import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 import 'mocha';
 import * as Sinon from 'sinon';
-import * as Web3 from 'web3';
 
 import { ApprovalContractEventArgs, DecodedLogEvent, Token, TokenEvents, ZeroEx } from '../src';
 import { DoneCallback } from '../src/types';
@@ -11,7 +10,7 @@ import { DoneCallback } from '../src/types';
 import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
 import { assertNodeCallbackError } from './utils/report_callback_errors';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
@@ -26,7 +25,7 @@ describe('SubscriptionTest', () => {
         networkId: constants.TESTRPC_NETWORK_ID,
     };
     before(async () => {
-        zeroEx = new ZeroEx(web3.currentProvider, config);
+        zeroEx = new ZeroEx(provider, config);
         userAddresses = await zeroEx.getAvailableAddressesAsync();
         tokens = await zeroEx.tokenRegistry.getTokensAsync();
         coinbase = userAddresses[0];

packages/0x.js/test/token_registry_wrapper_test.ts

@@ -8,7 +8,7 @@ import { Token, ZeroEx } from '../src';
 
 import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -31,7 +31,7 @@ describe('TokenRegistryWrapper', () => {
         networkId: constants.TESTRPC_NETWORK_ID,
     };
     before(async () => {
-        zeroEx = new ZeroEx(web3.currentProvider, config);
+        zeroEx = new ZeroEx(provider, config);
         tokens = await zeroEx.tokenRegistry.getTokensAsync();
         _.map(tokens, token => {
             tokenAddressBySymbol[token.symbol] = token.address;

packages/0x.js/test/token_transfer_proxy_wrapper_test.ts

@@ -1,14 +1,13 @@
-import { web3Factory } from '@0xproject/dev-utils';
 import * as chai from 'chai';
 
 import { ZeroEx } from '../src';
 
 import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
+import { provider } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
-const web3 = web3Factory.create();
 
 describe('TokenTransferProxyWrapper', () => {
     let zeroEx: ZeroEx;
@@ -16,7 +15,7 @@ describe('TokenTransferProxyWrapper', () => {
         networkId: constants.TESTRPC_NETWORK_ID,
     };
     before(async () => {
-        zeroEx = new ZeroEx(web3.currentProvider, config);
+        zeroEx = new ZeroEx(provider, config);
     });
     describe('#isAuthorizedAsync', () => {
         it('should return false if the address is not authorized', async () => {

packages/0x.js/test/token_wrapper_test.ts

@@ -1,9 +1,10 @@
-import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants } from '@0xproject/dev-utils';
+import { EmptyWalletSubprovider } from '@0xproject/subproviders';
+import { Provider } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
-import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
 import 'mocha';
-import * as Web3 from 'web3';
+import Web3ProviderEngine = require('web3-provider-engine');
 
 import {
     ApprovalContractEventArgs,
@@ -22,7 +23,7 @@ import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
 import { reportNodeCallbackErrors } from './utils/report_callback_errors';
 import { TokenUtils } from './utils/token_utils';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -39,7 +40,7 @@ describe('TokenWrapper', () => {
         networkId: constants.TESTRPC_NETWORK_ID,
     };
     before(async () => {
-        zeroEx = new ZeroEx(web3.currentProvider, config);
+        zeroEx = new ZeroEx(provider, config);
         userAddresses = await zeroEx.getAvailableAddressesAsync();
         tokens = await zeroEx.tokenRegistry.getTokensAsync();
         tokenUtils = new TokenUtils(tokens);
@@ -164,7 +165,7 @@ describe('TokenWrapper', () => {
         });
     });
     describe('#getBalanceAsync', () => {
-        describe('With web3 provider with accounts', () => {
+        describe('With provider with accounts', () => {
             it('should return the balance for an existing ERC20 token', async () => {
                 const token = tokens[0];
                 const ownerAddress = coinbase;
@@ -187,14 +188,14 @@ describe('TokenWrapper', () => {
                 return expect(balance).to.be.bignumber.equal(expectedBalance);
             });
         });
-        describe('With web3 provider without accounts', () => {
+        describe('With provider without accounts', () => {
             let zeroExWithoutAccounts: ZeroEx;
             before(async () => {
                 const hasAddresses = false;
-                const web3WithoutAccounts = web3Factory.create({ hasAddresses });
-                zeroExWithoutAccounts = new ZeroEx(web3WithoutAccounts.currentProvider, config);
+                const emptyWalletProvider = addEmptyWalletSubprovider(provider);
+                zeroExWithoutAccounts = new ZeroEx(emptyWalletProvider, config);
             });
-            it('should return balance even when called with Web3 provider instance without addresses', async () => {
+            it('should return balance even when called with provider instance without addresses', async () => {
                 const token = tokens[0];
                 const ownerAddress = coinbase;
                 const balance = await zeroExWithoutAccounts.token.getBalanceAsync(token.address, ownerAddress);
@@ -277,7 +278,7 @@ describe('TokenWrapper', () => {
         });
     });
     describe('#getAllowanceAsync', () => {
-        describe('With web3 provider with accounts', () => {
+        describe('With provider with accounts', () => {
             it('should get the proxy allowance', async () => {
                 const token = tokens[0];
                 const ownerAddress = coinbase;
@@ -299,12 +300,12 @@ describe('TokenWrapper', () => {
                 return expect(allowance).to.be.bignumber.equal(expectedAllowance);
             });
         });
-        describe('With web3 provider without accounts', () => {
+        describe('With provider without accounts', () => {
             let zeroExWithoutAccounts: ZeroEx;
             before(async () => {
                 const hasAddresses = false;
-                const web3WithoutAccounts = web3Factory.create({ hasAddresses });
-                zeroExWithoutAccounts = new ZeroEx(web3WithoutAccounts.currentProvider, config);
+                const emptyWalletProvider = addEmptyWalletSubprovider(provider);
+                zeroExWithoutAccounts = new ZeroEx(emptyWalletProvider, config);
             });
             it('should get the proxy allowance', async () => {
                 const token = tokens[0];
@@ -424,8 +425,7 @@ describe('TokenWrapper', () => {
                 );
                 zeroEx.token.subscribe(tokenAddress, TokenEvents.Transfer, indexFilterValues, callbackNeverToBeCalled);
                 const callbackToBeCalled = reportNodeCallbackErrors(done)();
-                const newProvider = web3Factory.getRpcProvider();
-                zeroEx.setProvider(newProvider, constants.TESTRPC_NETWORK_ID);
+                zeroEx.setProvider(provider, constants.TESTRPC_NETWORK_ID);
                 zeroEx.token.subscribe(tokenAddress, TokenEvents.Transfer, indexFilterValues, callbackToBeCalled);
                 await zeroEx.token.transferAsync(tokenAddress, coinbase, addressWithoutFunds, transferAmount);
             })().catch(done);
@@ -515,3 +515,14 @@ describe('TokenWrapper', () => {
     });
 });
 // tslint:disable:max-file-line-count
+
+function addEmptyWalletSubprovider(p: Provider): Provider {
+    const providerEngine = new Web3ProviderEngine();
+    providerEngine.addProvider(new EmptyWalletSubprovider());
+    const currentSubproviders = (p as any)._providers;
+    for (const subprovider of currentSubproviders) {
+        providerEngine.addProvider(subprovider);
+    }
+    providerEngine.start();
+    return providerEngine;
+}

packages/0x.js/test/utils/deployer.ts

@@ -2,19 +2,17 @@ import { Deployer } from '@0xproject/deployer';
 import { devConstants } from '@0xproject/dev-utils';
 import * as path from 'path';
 
-import { constants } from '../util/constants';
+import { constants } from './constants';
 
-import { runMigrationsAsync } from './migrate';
+import { provider } from './web3_wrapper';
 
+const artifactsDir = path.resolve('test', 'artifacts');
 const deployerOpts = {
-    artifactsDir: path.resolve('src', 'artifacts'),
-    jsonrpcUrl: devConstants.RPC_URL,
+    artifactsDir,
+    provider,
     networkId: constants.TESTRPC_NETWORK_ID,
     defaults: {
         gas: devConstants.GAS_ESTIMATE,
     },
 };
-
 export const deployer = new Deployer(deployerOpts);
-
-runMigrationsAsync(deployer).catch(console.log);

packages/0x.js/test/utils/fill_scenarios.ts

@@ -36,7 +36,12 @@ export class FillScenarios {
         for (const token of this._tokens) {
             if (token.symbol !== 'ZRX' && token.symbol !== 'WETH') {
                 const defaults = {};
-                const dummyToken = new DummyTokenContract(web3Wrapper, artifacts.DummyTokenArtifact.abi, token.address);
+                const dummyToken = new DummyTokenContract(
+                    artifacts.DummyTokenArtifact.abi,
+                    token.address,
+                    web3Wrapper.getProvider(),
+                    web3Wrapper.getContractDefaults(),
+                );
                 const tokenSupply = ZeroEx.toBaseUnitAmount(INITIAL_COINBASE_TOKEN_SUPPLY_IN_UNITS, token.decimals);
                 const txHash = await dummyToken.setBalance.sendTransactionAsync(this._coinbase, tokenSupply, {
                     from: this._coinbase,

packages/0x.js/test/utils/web3_wrapper.ts

@@ -1,6 +1,12 @@
-import { web3Factory } from '@0xproject/dev-utils';
+import { devConstants, web3Factory } from '@0xproject/dev-utils';
+import { Provider } from '@0xproject/types';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as Web3 from 'web3';
 
-export const web3 = web3Factory.create();
-export const web3Wrapper = new Web3Wrapper(web3.currentProvider);
+import { constants } from './constants';
+
+const web3 = web3Factory.create({ shouldUseInProcessGanache: true });
+const provider: Provider = web3.currentProvider;
+const web3Wrapper = new Web3Wrapper(web3.currentProvider);
+
+export { provider, web3Wrapper };

packages/abi-gen/CHANGELOG.json

@@ -1,4 +1,22 @@
 [
+    {
+        "timestamp": 1524044013,
+        "version": "0.2.11",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1523462196,
+        "version": "0.2.10",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
     {
         "timestamp": 1522673609,
         "version": "0.2.9",
@@ -15,8 +33,7 @@
             {
                 "note": "Dependencies updated"
             }
-        ],
-        "isPublished": true
+        ]
     },
     {
         "version": "0.2.5",
@@ -26,8 +43,7 @@
                 "pr": 452
             }
         ],
-        "timestamp": 1521298800,
-        "isPublished": true
+        "timestamp": 1521298800
     },
     {
         "version": "0.2.4",
@@ -47,8 +63,7 @@
                 "pr": 413
             }
         ],
-        "timestamp": 1520089200,
-        "isPublished": true
+        "timestamp": 1520089200
     },
     {
         "version": "0.2.1",
@@ -58,8 +73,7 @@
                 "pr": 389
             }
         ],
-        "timestamp": 1518102000,
-        "isPublished": true
+        "timestamp": 1518102000
     },
     {
         "version": "0.2.0",
@@ -74,8 +88,7 @@
                 "pr": 388
             }
         ],
-        "timestamp": 1517929200,
-        "isPublished": true
+        "timestamp": 1517929200
     },
     {
         "version": "0.1.0",
@@ -93,7 +106,6 @@
                 "pr": 304
             }
         ],
-        "timestamp": 1515596400,
-        "isPublished": true
+        "timestamp": 1515596400
     }
 ]

packages/abi-gen/CHANGELOG.md

@@ -5,6 +5,14 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.2.11 - _April 18, 2018_
+
+    * Dependencies updated
+
+## v0.2.10 - _April 12, 2018_
+
+    * Dependencies updated
+
 ## v0.2.9 - _April 2, 2018_
 
     * Dependencies updated
@@ -13,26 +21,26 @@ CHANGELOG
 
     * Dependencies updated
 
-## v0.2.5 - _March 17, 2018_
+## v0.2.5 - _March 18, 2018_
 
     * Consolidate all `console.log` calls into `logUtils` in the `@0xproject/utils` package (#452)
 
-## v0.2.4 - _March 3, 2018_
+## v0.2.4 - _March 4, 2018_
 
     * Add a `backend` parameter that allows you to specify the Ethereum library you use in your templates (`web3` or `ethers`). Ethers auto-converts small ints to numbers whereas Web3 doesn't. Defaults to `web3` (#413)
     * Add support for [tuple types](https://solidity.readthedocs.io/en/develop/abi-spec.html#handling-tuple-types) (#413)
     * Add `hasReturnValue` to context data (#413)
 
-## v0.2.1 - _February 8, 2018_
+## v0.2.1 - _February 9, 2018_
 
     * Fix publishing issue where .npmignore was not properly excluding undesired content (#389)
 
-## v0.2.0 - _February 6, 2018_
+## v0.2.0 - _February 7, 2018_
 
     * Added CLI options for explicit specifying location of partials and main template (#346)
     * Added CLI option to specify networkId, adding support for the JSON artifact format found in @0xproject/contracts (#388)
 
-## v0.1.0 - _January 10, 2018_
+## v0.1.0 - _January 11, 2018_
 
     * Fixed array typings with union types (#295)
     * Add event ABIs to context data passed to templates (#302)

packages/abi-gen/README.md

@@ -57,3 +57,61 @@ See the [type definition](https://github.com/0xProject/0x-monorepo/tree/developm
 ## Output files
 
 Output files will be generated within an output folder with names converted to camel case and taken from abi file names. If you already have some files in that folder they will be overwritten.
+
+## Contributing
+
+We welcome improvements and fixes from the wider community! To report bugs within this package, please create an issue in this repository.
+
+Please read our [contribution guidelines](../../CONTRIBUTING.md) before getting started.
+
+### Install dependencies
+
+If you don't have yarn workspaces enabled (Yarn < v1.0) - enable them:
+
+```bash
+yarn config set workspaces-experimental true
+```
+
+Then install dependencies
+
+```bash
+yarn install
+```
+
+### Build
+
+If this is your **first** time building this package, you must first build **all** packages within the monorepo. This is because packages that depend on other packages located inside this monorepo are symlinked when run from **within** the monorepo. This allows you to make changes across multiple packages without first publishing dependent packages to NPM. To build all packages, run the following from the monorepo root directory:
+
+```bash
+yarn lerna:rebuild
+```
+
+Or continuously rebuild on change:
+
+```bash
+yarn dev
+```
+
+You can also build this specific package by running the following from within its directory:
+
+```bash
+yarn build
+```
+
+or continuously rebuild on change:
+
+```bash
+yarn build:watch
+```
+
+### Clean
+
+```bash
+yarn clean
+```
+
+### Lint
+
+```bash
+yarn lint
+```

packages/abi-gen/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/abi-gen",
-    "version": "0.2.8",
+    "version": "0.2.11",
     "description": "Generate contract wrappers from ABI and handlebars templates",
     "main": "lib/index.js",
     "types": "lib/index.d.ts",
@@ -24,9 +24,9 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/abi-gen/README.md",
     "dependencies": {
-        "@0xproject/types": "^0.4.2",
-        "@0xproject/typescript-typings": "^0.0.2",
-        "@0xproject/utils": "^0.4.4",
+        "@0xproject/types": "^0.6.1",
+        "@0xproject/typescript-typings": "^0.2.0",
+        "@0xproject/utils": "^0.5.2",
         "chalk": "^2.3.0",
         "glob": "^7.1.2",
         "handlebars": "^4.0.11",
@@ -36,8 +36,8 @@
         "yargs": "^10.0.3"
     },
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.15",
-        "@0xproject/tslint-config": "^0.4.13",
+        "@0xproject/monorepo-scripts": "^0.1.18",
+        "@0xproject/tslint-config": "^0.4.16",
         "@types/glob": "^5.0.33",
         "@types/handlebars": "^4.0.36",
         "@types/mkdirp": "^0.5.1",

packages/abi-gen/src/globals.d.ts

@@ -1,8 +1,3 @@
-declare function toSnakeCase(str: string): string;
-declare module 'to-snake-case' {
-    export = toSnakeCase;
-}
-
 declare module '*.json' {
     const json: any;
     /* tslint:disable */

packages/abi-gen/src/index.ts

@@ -1,7 +1,7 @@
 #!/usr/bin/env node
 
 import { AbiDefinition, ConstructorAbi, EventAbi, MethodAbi } from '@0xproject/types';
-import { logUtils } from '@0xproject/utils';
+import { abiUtils, logUtils } from '@0xproject/utils';
 import chalk from 'chalk';
 import * as fs from 'fs';
 import { sync as globSync } from 'glob';
@@ -12,7 +12,7 @@ import * as yargs from 'yargs';
 
 import toSnakeCase = require('to-snake-case');
 
-import { ContextData, ContractsBackend, ParamKind } from './types';
+import { ContextData, ContractsBackend, Method, ParamKind } from './types';
 import { utils } from './utils';
 
 const ABI_TYPE_CONSTRUCTOR = 'constructor';
@@ -83,7 +83,6 @@ function writeOutputFile(name: string, renderedTsCode: string): void {
 
 Handlebars.registerHelper('parameterType', utils.solTypeToTsType.bind(utils, ParamKind.Input, args.backend));
 Handlebars.registerHelper('returnType', utils.solTypeToTsType.bind(utils, ParamKind.Output, args.backend));
-
 if (args.partials) {
     registerPartials(args.partials);
 }
@@ -126,11 +125,12 @@ for (const abiFileName of abiFileNames) {
     }
 
     const methodAbis = ABI.filter((abi: AbiDefinition) => abi.type === ABI_TYPE_METHOD) as MethodAbi[];
-    const methodsData = _.map(methodAbis, methodAbi => {
-        _.map(methodAbi.inputs, (input, i: number) => {
+    const sanitizedMethodAbis = abiUtils.renameOverloadedMethods(methodAbis) as MethodAbi[];
+    const methodsData = _.map(methodAbis, (methodAbi, methodAbiIndex: number) => {
+        _.forEach(methodAbi.inputs, (input, inputIndex: number) => {
             if (_.isEmpty(input.name)) {
                 // Auto-generated getters don't have parameter names
-                input.name = `index_${i}`;
+                input.name = `index_${inputIndex}`;
             }
         });
         // This will make templates simpler
@@ -138,6 +138,8 @@ for (const abiFileName of abiFileNames) {
             ...methodAbi,
             singleReturnValue: methodAbi.outputs.length === 1,
             hasReturnValue: methodAbi.outputs.length !== 0,
+            tsName: sanitizedMethodAbis[methodAbiIndex].name,
+            functionSignature: abiUtils.getFunctionSignature(methodAbi),
         };
         return methodData;
     });

packages/abi-gen/src/types.ts

@@ -5,13 +5,6 @@ export enum ParamKind {
     Output = 'output',
 }
 
-export enum AbiType {
-    Function = 'function',
-    Constructor = 'constructor',
-    Event = 'event',
-    Fallback = 'fallback',
-}
-
 export enum ContractsBackend {
     Web3 = 'web3',
     Ethers = 'ethers',
@@ -20,6 +13,8 @@ export enum ContractsBackend {
 export interface Method extends MethodAbi {
     singleReturnValue: boolean;
     hasReturnValue: boolean;
+    tsName: string;
+    functionSignature: string;
 }
 
 export interface ContextData {

packages/abi-gen/src/utils.ts

@@ -1,9 +1,9 @@
-import { ConstructorAbi, DataItem } from '@0xproject/types';
+import { AbiType, ConstructorAbi, DataItem } from '@0xproject/types';
 import * as fs from 'fs';
 import * as _ from 'lodash';
 import * as path from 'path';
 
-import { AbiType, ContractsBackend, ParamKind } from './types';
+import { ContractsBackend, ParamKind } from './types';
 
 export const utils = {
     solTypeToTsType(paramKind: ParamKind, backend: ContractsBackend, solType: string, components?: DataItem[]): string {

packages/assert/CHANGELOG.json

@@ -1,4 +1,22 @@
 [
+    {
+        "timestamp": 1524044013,
+        "version": "0.2.7",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1523462196,
+        "version": "0.2.6",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
     {
         "timestamp": 1522673609,
         "version": "0.2.5",
@@ -15,8 +33,7 @@
             {
                 "note": "Dependencies updated"
             }
-        ],
-        "isPublished": true
+        ]
     },
     {
         "version": "0.2.0",
@@ -26,8 +43,7 @@
                 "pr": 412
             }
         ],
-        "timestamp": 1520434800,
-        "isPublished": true
+        "timestamp": 1520434800
     },
     {
         "version": "0.1.0",
@@ -41,8 +57,7 @@
                 "pr": 385
             }
         ],
-        "timestamp": 1520089200,
-        "isPublished": true
+        "timestamp": 1520089200
     },
     {
         "version": "0.0.18",
@@ -52,8 +67,7 @@
                 "pr": 389
             }
         ],
-        "timestamp": 1486566000,
-        "isPublished": true
+        "timestamp": 1486566000
     },
     {
         "version": "0.0.4",
@@ -66,7 +80,6 @@
                     "Added assertion isValidBaseUnitAmount which checks both that the value is a valid bigNumber and that it does not contain decimals."
             }
         ],
-        "timestamp": 1510585200,
-        "isPublished": true
+        "timestamp": 1510585200
     }
 ]

packages/assert/CHANGELOG.md

@@ -5,6 +5,14 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.2.7 - _April 18, 2018_
+
+    * Dependencies updated
+
+## v0.2.6 - _April 12, 2018_
+
+    * Dependencies updated
+
 ## v0.2.5 - _April 2, 2018_
 
     * Dependencies updated
@@ -13,20 +21,20 @@ CHANGELOG
 
     * Dependencies updated
 
-## v0.2.0 - _March 7, 2018_
+## v0.2.0 - _March 8, 2018_
 
     * Rename `isHttpUrl` to `isWebUri` (#412)
 
-## v0.1.0 - _March 3, 2018_
+## v0.1.0 - _March 4, 2018_
 
     * Remove isETHAddressHex checksum address check and assume address will be lowercased  (#373)
     * Add an optional parameter `subSchemas` to `doesConformToSchema` method (#385)
 
-## v0.0.18 - _February 8, 2017_
+## v0.0.18 - _February 9, 2017_
 
     * Fix publishing issue where .npmignore was not properly excluding undesired content (#389)
 
-## v0.0.4 - _November 13, 2017_
+## v0.0.4 - _November 14, 2017_
 
     * Re-publish Assert previously published under NPM package @0xproject/0x-assert
     * Added assertion isValidBaseUnitAmount which checks both that the value is a valid bigNumber and that it does not contain decimals.

packages/assert/README.md

@@ -26,11 +26,11 @@ If your project is in [TypeScript](https://www.typescriptlang.org/), add the fol
 
 ## Contributing
 
-We strongly encourage that the community help us make improvements and determine the future direction of the protocol. To report bugs within this package, please create an issue in this repository.
+We welcome improvements and fixes from the wider community! To report bugs within this package, please create an issue in this repository.
 
 Please read our [contribution guidelines](../../CONTRIBUTING.md) before getting started.
 
-### Install Dependencies
+### Install dependencies
 
 If you don't have yarn workspaces enabled (Yarn < v1.0) - enable them:
 
@@ -46,10 +46,36 @@ yarn install
 
 ### Build
 
+If this is your **first** time building this package, you must first build **all** packages within the monorepo. This is because packages that depend on other packages located inside this monorepo are symlinked when run from **within** the monorepo. This allows you to make changes across multiple packages without first publishing dependent packages to NPM. To build all packages, run the following from the monorepo root directory:
+
+```bash
+yarn lerna:rebuild
+```
+
+Or continuously rebuild on change:
+
+```bash
+yarn dev
+```
+
+You can also build this specific package by running the following from within its directory:
+
 ```bash
 yarn build
 ```
 
+or continuously rebuild on change:
+
+```bash
+yarn build:watch
+```
+
+### Clean
+
+```bash
+yarn clean
+```
+
 ### Lint
 
 ```bash

packages/assert/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/assert",
-    "version": "0.2.4",
+    "version": "0.2.7",
     "description": "Provides a standard way of performing type and schema validation across 0x projects",
     "main": "lib/src/index.js",
     "types": "lib/src/index.d.ts",
@@ -9,7 +9,7 @@
         "build": "tsc && copyfiles -u 3 './lib/src/monorepo_scripts/**/*' ./scripts",
         "clean": "shx rm -rf lib test_temp scripts",
         "lint": "tslint --project . 'src/**/*.ts' 'test/**/*.ts'",
-        "run_mocha": "mocha lib/test/**/*_test.js",
+        "run_mocha": "mocha lib/test/**/*_test.js --exit",
         "prepublishOnly": "run-p build",
         "test": "run-s clean build run_mocha",
         "test:coverage": "nyc npm run test --all && yarn coverage:report:lcov",
@@ -27,8 +27,8 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/assert/README.md",
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.15",
-        "@0xproject/tslint-config": "^0.4.13",
+        "@0xproject/monorepo-scripts": "^0.1.18",
+        "@0xproject/tslint-config": "^0.4.16",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^2.2.42",
         "@types/valid-url": "^1.0.2",
@@ -43,9 +43,9 @@
         "typescript": "2.7.1"
     },
     "dependencies": {
-        "@0xproject/json-schemas": "^0.7.18",
-        "@0xproject/typescript-typings": "^0.0.2",
-        "@0xproject/utils": "^0.4.4",
+        "@0xproject/json-schemas": "^0.7.21",
+        "@0xproject/typescript-typings": "^0.2.0",
+        "@0xproject/utils": "^0.5.2",
         "lodash": "^4.17.4",
         "valid-url": "^1.0.9"
     },

packages/assert/src/index.ts

@@ -61,7 +61,7 @@ export const assert = {
     },
     isWeb3Provider(variableName: string, value: any): void {
         const isWeb3Provider = _.isFunction(value.send) || _.isFunction(value.sendAsync);
-        this.assert(isWeb3Provider, this.typeAssertionMessage(variableName, 'Web3.Provider', value));
+        this.assert(isWeb3Provider, this.typeAssertionMessage(variableName, 'Provider', value));
     },
     doesConformToSchema(variableName: string, value: any, schema: Schema, subSchemas?: Schema[]): void {
         const schemaValidator = new SchemaValidator();

packages/base-contract/CHANGELOG.json

@@ -1,4 +1,23 @@
 [
+    {
+        "timestamp": 1524044013,
+        "version": "0.2.1",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "version": "0.2.0",
+        "changes": [
+            {
+                "note": "Contract wrappers now accept Provider and defaults instead of Web3Wrapper",
+                "pr": 501
+            }
+        ],
+        "timestamp": 1523462196
+    },
     {
         "version": "0.1.0",
         "changes": [
@@ -24,8 +43,7 @@
             {
                 "note": "Dependencies updated"
             }
-        ],
-        "isPublished": true
+        ]
     },
     {
         "version": "0.0.2",
@@ -34,7 +52,6 @@
                 "note": "Initial release"
             }
         ],
-        "timestamp": 1520089200,
-        "isPublished": true
+        "timestamp": 1520089200
     }
 ]

packages/base-contract/CHANGELOG.md

@@ -5,6 +5,14 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.2.1 - _April 18, 2018_
+
+    * Dependencies updated
+
+## v0.2.0 - _April 12, 2018_
+
+    * Contract wrappers now accept Provider and defaults instead of Web3Wrapper (#501)
+
 ## v0.1.0 - _April 2, 2018_
 
     * Add tests for traversing ABI tree (#485)
@@ -15,6 +23,6 @@ CHANGELOG
 
     * Dependencies updated
 
-## v0.0.2 - _March 3, 2018_
+## v0.0.2 - _March 4, 2018_
 
     * Initial release

packages/base-contract/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/base-contract",
-    "version": "0.0.6",
+    "version": "0.2.1",
     "description": "0x Base TS contract",
     "main": "lib/src/index.js",
     "types": "lib/src/index.d.ts",
@@ -26,22 +26,22 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/base-contract/README.md",
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.15",
-        "@0xproject/tslint-config": "^0.4.13",
+        "@0xproject/monorepo-scripts": "^0.1.18",
+        "@0xproject/tslint-config": "^0.4.16",
         "@types/lodash": "4.14.104",
+        "chai": "^4.0.1",
         "copyfiles": "^1.2.0",
+        "mocha": "^4.0.1",
         "npm-run-all": "^4.1.2",
         "shx": "^0.2.2",
-        "chai": "^4.0.1",
-        "mocha": "^4.0.1",
         "tslint": "5.8.0",
         "typescript": "2.7.1"
     },
     "dependencies": {
-        "@0xproject/utils": "^0.4.3",
-        "@0xproject/types": "^0.4.2",
-        "@0xproject/typescript-typings": "^0.0.2",
-        "@0xproject/web3-wrapper": "^0.4.0",
+        "@0xproject/types": "^0.6.1",
+        "@0xproject/typescript-typings": "^0.2.0",
+        "@0xproject/utils": "^0.5.2",
+        "@0xproject/web3-wrapper": "^0.6.1",
         "ethers-contracts": "^2.2.1",
         "lodash": "^4.17.4"
     },

packages/base-contract/src/index.ts

@@ -1,13 +1,26 @@
-import { ContractAbi, DataItem, TxData, TxDataPayable } from '@0xproject/types';
-import { BigNumber } from '@0xproject/utils';
+import {
+    AbiDefinition,
+    AbiType,
+    ContractAbi,
+    DataItem,
+    MethodAbi,
+    Provider,
+    TxData,
+    TxDataPayable,
+} from '@0xproject/types';
+import { abiUtils, BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as ethersContracts from 'ethers-contracts';
 import * as _ from 'lodash';
 
 import { formatABIDataItem } from './utils';
 
+export interface EthersInterfaceByFunctionSignature {
+    [key: string]: ethersContracts.Interface;
+}
+
 export class BaseContract {
-    protected _ethersInterface: ethersContracts.Interface;
+    protected _ethersInterfacesByFunctionSignature: EthersInterfaceByFunctionSignature;
     protected _web3Wrapper: Web3Wrapper;
     public abi: ContractAbi;
     public address: string;
@@ -49,10 +62,37 @@ export class BaseContract {
         }
         return txDataWithDefaults;
     }
-    constructor(web3Wrapper: Web3Wrapper, abi: ContractAbi, address: string) {
-        this._web3Wrapper = web3Wrapper;
+    protected _lookupEthersInterface(functionSignature: string): ethersContracts.Interface {
+        const ethersInterface = this._ethersInterfacesByFunctionSignature[functionSignature];
+        if (_.isUndefined(ethersInterface)) {
+            throw new Error(`Failed to lookup method with function signature '${functionSignature}'`);
+        }
+        return ethersInterface;
+    }
+    protected _lookupAbi(functionSignature: string): MethodAbi {
+        const methodAbi = _.find(this.abi, (abiDefinition: AbiDefinition) => {
+            if (abiDefinition.type !== AbiType.Function) {
+                return false;
+            }
+            const abiFunctionSignature = abiUtils.getFunctionSignature(abiDefinition);
+            if (abiFunctionSignature === functionSignature) {
+                return true;
+            }
+            return false;
+        }) as MethodAbi;
+        return methodAbi;
+    }
+    constructor(abi: ContractAbi, address: string, provider: Provider, defaults?: Partial<TxData>) {
+        this._web3Wrapper = new Web3Wrapper(provider, defaults);
         this.abi = abi;
         this.address = address;
-        this._ethersInterface = new ethersContracts.Interface(abi);
+        const methodAbis = this.abi.filter(
+            (abiDefinition: AbiDefinition) => abiDefinition.type === AbiType.Function,
+        ) as MethodAbi[];
+        this._ethersInterfacesByFunctionSignature = {};
+        _.each(methodAbis, methodAbi => {
+            const functionSignature = abiUtils.getFunctionSignature(methodAbi);
+            this._ethersInterfacesByFunctionSignature[functionSignature] = new ethersContracts.Interface([methodAbi]);
+        });
     }
 }

packages/connect/CHANGELOG.json

@@ -1,4 +1,22 @@
 [
+    {
+        "timestamp": 1524044013,
+        "version": "0.6.10",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1523462196,
+        "version": "0.6.9",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
     {
         "timestamp": 1522673609,
         "version": "0.6.8",
@@ -15,8 +33,7 @@
             {
                 "note": "Dependencies updated"
             }
-        ],
-        "isPublished": true
+        ]
     },
     {
         "version": "0.6.4",
@@ -26,8 +43,7 @@
                 "pr": 456
             }
         ],
-        "timestamp": 1521298800,
-        "isPublished": true
+        "timestamp": 1521298800
     },
     {
         "version": "0.6.2",
@@ -37,8 +53,7 @@
                 "pr": 407
             }
         ],
-        "timestamp": 1518706800,
-        "isPublished": true
+        "timestamp": 1518706800
     },
     {
         "version": "0.6.0",
@@ -52,8 +67,7 @@
                 "pr": 406
             }
         ],
-        "timestamp": 1518706800,
-        "isPublished": true
+        "timestamp": 1518706800
     },
     {
         "version": "0.5.7",
@@ -63,8 +77,7 @@
                 "pr": 389
             }
         ],
-        "timestamp": 1518102000,
-        "isPublished": true
+        "timestamp": 1518102000
     },
     {
         "version": "0.5.0",
@@ -82,8 +95,7 @@
                 "pr": 318
             }
         ],
-        "timestamp": 1516114800,
-        "isPublished": true
+        "timestamp": 1516114800
     },
     {
         "version": "0.4.0",
@@ -93,8 +105,7 @@
                 "pr": 296
             }
         ],
-        "timestamp": 1515596400,
-        "isPublished": true
+        "timestamp": 1515596400
     },
     {
         "version": "0.3.0",
@@ -108,8 +119,7 @@
                 "pr": 256
             }
         ],
-        "timestamp": 1512658800,
-        "isPublished": true
+        "timestamp": 1512658800
     },
     {
         "version": "0.2.0",
@@ -124,8 +134,7 @@
                 "note": "Remove dependency on 0x.js"
             }
         ],
-        "timestamp": 1511881200,
-        "isPublished": true
+        "timestamp": 1511881200
     },
     {
         "version": "0.1.0",
@@ -134,7 +143,6 @@
                 "note": "Provide a HttpClient class for interacting with standard relayer api compliant HTTP urls"
             }
         ],
-        "timestamp": 1511276400,
-        "isPublished": true
+        "timestamp": 1511276400
     }
 ]

packages/connect/CHANGELOG.md

@@ -5,6 +5,14 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.6.10 - _April 18, 2018_
+
+    * Dependencies updated
+
+## v0.6.9 - _April 12, 2018_
+
+    * Dependencies updated
+
 ## v0.6.8 - _April 2, 2018_
 
     * Dependencies updated
@@ -13,44 +21,44 @@ CHANGELOG
 
     * Dependencies updated
 
-## v0.6.4 - _March 17, 2018_
+## v0.6.4 - _March 18, 2018_
 
     * Consolidate `Order`, `SignedOrder`, and `ECSignature` into the `@0xproject/types` package (#456)
 
-## v0.6.2 - _February 15, 2018_
+## v0.6.2 - _February 16, 2018_
 
     * Fix JSON parse empty response (#407)
 
-## v0.6.0 - _February 15, 2018_
+## v0.6.0 - _February 16, 2018_
 
     * Add pagination options to HttpClient methods (#393)
     * Add heartbeat configuration to WebSocketOrderbookChannel constructor (#406)
 
-## v0.5.7 - _February 8, 2018_
+## v0.5.7 - _February 9, 2018_
 
     * Fix publishing issue where .npmignore was not properly excluding undesired content (#389)
 
-## v0.5.0 - _January 16, 2018_
+## v0.5.0 - _January 17, 2018_
 
     * Sanitize api endpoint url and remove trailing slashes (#318)
     * Improve error message text in HttpClient (#318)
     * Stop appending '/v0' to api endpoint url in HttpClient (#318)
 
-## v0.4.0 - _January 10, 2018_
+## v0.4.0 - _January 11, 2018_
 
     * Prevent getFeesAsync method on HttpClient from mutating input (#296)
 
-## v0.3.0 - _December 7, 2017_
+## v0.3.0 - _December 8, 2017_
 
     * Expose WebSocketOrderbookChannel and associated types to public interface (#251)
     * Remove tokenA and tokenB fields from OrdersRequest (#256)
 
-## v0.2.0 - _November 28, 2017_
+## v0.2.0 - _November 29, 2017_
 
     * Add SignedOrder and TokenTradeInfo to the public interface
     * Add ECSignature and Order to the public interface
     * Remove dependency on 0x.js
 
-## v0.1.0 - _November 21, 2017_
+## v0.1.0 - _November 22, 2017_
 
     * Provide a HttpClient class for interacting with standard relayer api compliant HTTP urls

packages/connect/README.md

@@ -23,11 +23,11 @@ If your project is in [TypeScript](https://www.typescriptlang.org/), add the fol
 
 ## Contributing
 
-We strongly recommend that the community help us make improvements and determine the future direction of the protocol. To report bugs within this package, please create an issue in this repository.
+We welcome improvements and fixes from the wider community! To report bugs within this package, please create an issue in this repository.
 
 Please read our [contribution guidelines](../../CONTRIBUTING.md) before getting started.
 
-### Install Dependencies
+### Install dependencies
 
 If you don't have yarn workspaces enabled (Yarn < v1.0) - enable them:
 
@@ -43,10 +43,36 @@ yarn install
 
 ### Build
 
+If this is your **first** time building this package, you must first build **all** packages within the monorepo. This is because packages that depend on other packages located inside this monorepo are symlinked when run from **within** the monorepo. This allows you to make changes across multiple packages without first publishing dependent packages to NPM. To build all packages, run the following from the monorepo root directory:
+
+```bash
+yarn lerna:rebuild
+```
+
+Or continuously rebuild on change:
+
+```bash
+yarn dev
+```
+
+You can also build this specific package by running the following from within its directory:
+
 ```bash
 yarn build
 ```
 
+or continuously rebuild on change:
+
+```bash
+yarn build:watch
+```
+
+### Clean
+
+```bash
+yarn clean
+```
+
 ### Lint
 
 ```bash

packages/connect/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/connect",
-    "version": "0.6.7",
+    "version": "0.6.10",
     "description": "A javascript library for interacting with the standard relayer api",
     "keywords": [
         "connect",
@@ -17,7 +17,7 @@
         "clean": "shx rm -rf lib test_temp scripts",
         "copy_test_fixtures": "copyfiles -u 2 './test/fixtures/**/*.json' ./lib/test/fixtures",
         "lint": "tslint --project . 'src/**/*.ts' 'test/**/*.ts'",
-        "run_mocha": "mocha lib/test/**/*_test.js",
+        "run_mocha": "mocha lib/test/**/*_test.js --exit",
         "test": "run-s clean build copy_test_fixtures run_mocha",
         "test:coverage": "nyc npm run test --all && yarn coverage:report:lcov",
         "coverage:report:lcov": "nyc report --reporter=text-lcov > coverage/lcov.info",
@@ -50,19 +50,19 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/connect/README.md",
     "dependencies": {
-        "@0xproject/assert": "^0.2.4",
-        "@0xproject/json-schemas": "^0.7.18",
-        "@0xproject/types": "^0.4.2",
-        "@0xproject/typescript-typings": "^0.0.2",
-        "@0xproject/utils": "^0.4.4",
+        "@0xproject/assert": "^0.2.7",
+        "@0xproject/json-schemas": "^0.7.21",
+        "@0xproject/types": "^0.6.1",
+        "@0xproject/typescript-typings": "^0.2.0",
+        "@0xproject/utils": "^0.5.2",
         "isomorphic-fetch": "^2.2.1",
         "lodash": "^4.17.4",
         "query-string": "^5.0.1",
         "websocket": "^1.0.25"
     },
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.15",
-        "@0xproject/tslint-config": "^0.4.13",
+        "@0xproject/monorepo-scripts": "^0.1.18",
+        "@0xproject/tslint-config": "^0.4.16",
         "@types/fetch-mock": "^5.12.1",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^2.2.42",

packages/connect/src/globals.d.ts

@@ -1,5 +1,3 @@
-declare module 'async-child-process';
-
 declare module '*.json' {
     const value: any;
     export default value;

packages/connect/src/types.ts

@@ -15,14 +15,14 @@ export interface OrderbookChannel {
     close: () => void;
 }
 
-/*
+/**
  * heartbeatInterval: Interval in milliseconds that the orderbook channel should ping the underlying websocket. Default: 15000
  */
 export interface WebSocketOrderbookChannelConfig {
     heartbeatIntervalMs?: number;
 }
 
-/*
+/**
  * baseTokenAddress: The address of token designated as the baseToken in the currency pair calculation of price
  * quoteTokenAddress: The address of token designated as the quoteToken in the currency pair calculation of price
  * snapshot: If true, a snapshot of the orderbook will be sent before the updates to the orderbook

packages/contract_templates/contract.handlebars

@@ -5,7 +5,7 @@
 // tslint:disable:no-consecutive-blank-lines
 // tslint:disable-next-line:no-unused-variable
 import { BaseContract } from '@0xproject/base-contract';
-import { BlockParam, BlockParamLiteral, CallData, ContractAbi, DataItem, MethodAbi, TxData, TxDataPayable } from '@0xproject/types';
+import { BlockParam, BlockParamLiteral, CallData, ContractAbi, DataItem, MethodAbi, Provider, TxData, TxDataPayable } from '@0xproject/types';
 import { BigNumber, classUtils, promisify } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as ethersContracts from 'ethers-contracts';
@@ -39,8 +39,8 @@ export class {{contractName}}Contract extends BaseContract {
     {{> tx contractName=../contractName}}
     {{/this.constant}}
 {{/each}}
-    constructor(web3Wrapper: Web3Wrapper, abi: ContractAbi, address: string) {
-        super(web3Wrapper, abi, address);
-        classUtils.bindAll(this, ['_ethersInterface', 'address', 'abi', '_web3Wrapper']);
+    constructor(abi: ContractAbi, address: string, provider: Provider, defaults?: Partial<TxData>) {
+        super(abi, address, provider, defaults);
+        classUtils.bindAll(this, ['_ethersInterfacesByFunctionSignature', 'address', 'abi', '_web3Wrapper']);
     }
 } // tslint:disable:max-file-line-count

packages/contract_templates/partials/callAsync.handlebars

@@ -5,9 +5,9 @@ async callAsync(
     defaultBlock?: BlockParam,
 ): Promise<{{> return_type outputs=outputs}}> {
     const self = this as any as {{contractName}}Contract;
-    const inputAbi = (_.find(self.abi, {name: '{{this.name}}'}) as MethodAbi).inputs;
+    const inputAbi = self._lookupAbi('{{this.functionSignature}}').inputs;
     [{{> params inputs=inputs}}] = BaseContract._formatABIDataItemList(inputAbi, [{{> params inputs=inputs}}], BaseContract._bigNumberToString.bind(self));
-    const encodedData = self._ethersInterface.functions.{{this.name}}(
+    const encodedData = self._lookupEthersInterface('{{this.functionSignature}}').functions.{{this.name}}(
         {{> params inputs=inputs}}
     ).data;
     const callDataWithDefaults = await self._applyDefaultsToTxDataAsync(

packages/contract_templates/partials/tx.handlebars

@@ -1,4 +1,4 @@
-public {{this.name}} = {
+public {{this.tsName}} = {
     async sendTransactionAsync(
     {{> typed_params inputs=inputs}}
     {{#this.payable}}
@@ -9,17 +9,17 @@ public {{this.name}} = {
     {{/this.payable}}
     ): Promise<string> {
         const self = this as any as {{contractName}}Contract;
-        const inputAbi = (_.find(self.abi, {name: '{{this.name}}'}) as MethodAbi).inputs;
+        const inputAbi = self._lookupAbi('{{this.functionSignature}}').inputs;
         [{{> params inputs=inputs}}] = BaseContract._formatABIDataItemList(inputAbi, [{{> params inputs=inputs}}], BaseContract._bigNumberToString.bind(self));
-        const encodedData = self._ethersInterface.functions.{{this.name}}(
+        const encodedData = self._lookupEthersInterface('{{this.functionSignature}}').functions.{{this.name}}(
             {{> params inputs=inputs}}
-        ).data
+        ).data;
         const txDataWithDefaults = await self._applyDefaultsToTxDataAsync(
             {
                 ...txData,
                 data: encodedData,
             },
-            self.{{this.name}}.estimateGasAsync.bind(
+            self.{{this.tsName}}.estimateGasAsync.bind(
                 self,
                 {{> params inputs=inputs}}
             ),
@@ -32,11 +32,11 @@ public {{this.name}} = {
         txData: Partial<TxData> = {},
     ): Promise<number> {
         const self = this as any as {{contractName}}Contract;
-        const inputAbi = (_.find(self.abi, {name: '{{this.name}}'}) as MethodAbi).inputs;
+        const inputAbi = self._lookupAbi('{{this.functionSignature}}').inputs;
         [{{> params inputs=inputs}}] = BaseContract._formatABIDataItemList(inputAbi, [{{> params inputs=inputs}}], BaseContract._bigNumberToString.bind(this));
-        const encodedData = self._ethersInterface.functions.{{this.name}}(
+        const encodedData = self._lookupEthersInterface('{{this.functionSignature}}').functions.{{this.name}}(
             {{> params inputs=inputs}}
-        ).data
+        ).data;
         const txDataWithDefaults = await self._applyDefaultsToTxDataAsync(
             {
                 ...txData,
@@ -50,11 +50,11 @@ public {{this.name}} = {
     {{> typed_params inputs=inputs}}
     ): string {
         const self = this as any as {{contractName}}Contract;
-        const inputAbi = (_.find(self.abi, {name: '{{this.name}}'}) as MethodAbi).inputs;
+        const inputAbi = self._lookupAbi('{{this.functionSignature}}').inputs;
         [{{> params inputs=inputs}}] = BaseContract._formatABIDataItemList(inputAbi, [{{> params inputs=inputs}}], BaseContract._bigNumberToString.bind(self));
-        const abiEncodedTransactionData = self._ethersInterface.functions.{{this.name}}(
+        const abiEncodedTransactionData = self._lookupEthersInterface('{{this.name}}').functions.{{this.name}}(
             {{> params inputs=inputs}}
-        ).data
+        ).data;
         return abiEncodedTransactionData;
     },
     {{> callAsync}}

packages/contracts/README.md

@@ -34,11 +34,25 @@ yarn install
 
 ### Build
 
+If this is your **first** time building this package, you must first build **all** packages within the monorepo. This is because packages that depend on other packages located inside this monorepo are symlinked when run from **within** the monorepo. This allows you to make changes across multiple packages without first publishing dependent packages to NPM. To build all packages, run the following from the monorepo root directory:
+
+```bash
+yarn lerna:rebuild
+```
+
+Or continuously rebuild on change:
+
+```bash
+yarn dev
+```
+
+You can also build this specific package by running the following from within its directory:
+
 ```bash
 yarn build
 ```
 
-or
+or continuously rebuild on change:
 
 ```bash
 yarn build:watch
@@ -58,17 +72,6 @@ yarn lint
 
 ### Run Tests
 
-Before running the tests, you will need to spin up a [TestRPC](https://www.npmjs.com/package/ethereumjs-testrpc) instance.
-
-In a separate terminal, start TestRPC (a convenience command is provided as part of the [0x.js monorepo](https://github.com/0xProject/0x-monorepo))
-
-```bash
-cd ../..
-yarn testrpc
-```
-
-Then in your main terminal run
-
 ```bash
 yarn test
 ```

packages/contracts/migrations/config/multisig_sample.ts

@@ -1,10 +0,0 @@
-import { MultiSigConfigByNetwork } from '../types';
-
-// Make a copy of this file named `multisig.js` and input custom params as needed
-export const multiSig: MultiSigConfigByNetwork = {
-    kovan: {
-        owners: [],
-        confirmationsRequired: 0,
-        secondsRequired: 0,
-    },
-};

packages/contracts/migrations/types.ts

@@ -1,23 +0,0 @@
-export interface MultiSigConfig {
-    owners: string[];
-    confirmationsRequired: number;
-    secondsRequired: number;
-}
-
-export interface MultiSigConfigByNetwork {
-    [networkName: string]: MultiSigConfig;
-}
-
-export interface Token {
-    address?: string;
-    name: string;
-    symbol: string;
-    decimals: number;
-    ipfsHash: string;
-    swarmHash: string;
-}
-
-export interface TokenInfoByNetwork {
-    development: Token[];
-    live: Token[];
-}

packages/contracts/package.json

@@ -1,7 +1,7 @@
 {
     "private": true,
     "name": "contracts",
-    "version": "2.1.20",
+    "version": "2.1.23",
     "description": "Smart contract components of 0x protocol",
     "main": "index.js",
     "directories": {
@@ -10,16 +10,15 @@
     "scripts": {
         "build:watch": "tsc -w",
         "prebuild": "run-s clean compile copy_artifacts generate_contract_wrappers",
-        "copy_artifacts": "copyfiles './src/artifacts/**/*' ./lib",
+        "copy_artifacts": "copyfiles -u 4 '../migrations/src/artifacts/**/*' ./lib/src/artifacts;",
         "build": "tsc",
         "test": "run-s build run_mocha",
         "test:coverage": "SOLIDITY_COVERAGE=true run-s build run_mocha coverage:report:text coverage:report:lcov",
         "run_mocha": "mocha 'lib/test/**/*.js' --timeout 100000 --bail --exit",
         "compile:comment": "Yarn workspaces do not link binaries correctly so we need to reference them directly https://github.com/yarnpkg/yarn/issues/3846",
-        "compile": "node ../deployer/lib/src/cli.js compile --contracts ${npm_package_config_contracts} --contracts-dir src/contracts --artifacts-dir src/artifacts",
+        "compile": "node ../deployer/lib/src/cli.js compile --contracts ${npm_package_config_contracts} --contracts-dir src/contracts --artifacts-dir ../migrations/src/artifacts",
         "clean": "shx rm -rf ./lib",
         "generate_contract_wrappers": "node ../abi-gen/lib/index.js --abis  ${npm_package_config_abis} --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output src/contract_wrappers/generated --backend ethers && prettier --write 'src/contract_wrappers/generated/**.ts'",
-        "migrate": "yarn build && yarn compile && node ./lib/migrations/index.js",
         "lint": "tslint --project . 'migrations/**/*.ts' 'test/**/*.ts' 'util/**/*.ts' 'deploy/**/*.ts'",
         "coverage:report:text": "istanbul report text",
         "coverage:report:html": "istanbul report html && open coverage/index.html",
@@ -27,7 +26,7 @@
         "test:circleci": "yarn test:coverage"
     },
     "config": {
-        "abis": "src/artifacts/@(DummyToken|TokenTransferProxy|Exchange|TokenRegistry|MultiSigWallet|MultiSigWalletWithTimeLock|MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress|TokenRegistry|ZRXToken|Arbitrage|EtherDelta|AccountLevels).json",
+        "abis": "../migrations/src/artifacts/@(DummyToken|TokenTransferProxy|Exchange|TokenRegistry|MultiSigWallet|MultiSigWalletWithTimeLock|MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress|TokenRegistry|ZRXToken|Arbitrage|EtherDelta|AccountLevels).json",
         "contracts": "Exchange,DummyToken,ZRXToken,Token,WETH9,TokenTransferProxy,MultiSigWallet,MultiSigWalletWithTimeLock,MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress,MaliciousToken,TokenRegistry,Arbitrage,EtherDelta,AccountLevels"
     },
     "repository": {
@@ -41,12 +40,10 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/contracts/README.md",
     "devDependencies": {
-        "@0xproject/dev-utils": "^0.3.3",
-        "@0xproject/tslint-config": "^0.4.13",
-        "@types/bluebird": "^3.5.3",
+        "@0xproject/dev-utils": "^0.3.6",
+        "@0xproject/tslint-config": "^0.4.16",
         "@types/lodash": "4.14.104",
         "@types/node": "^8.0.53",
-        "@types/request-promise-native": "^1.0.2",
         "@types/yargs": "^10.0.0",
         "chai": "^4.0.1",
         "chai-as-promised": "^7.1.0",
@@ -57,28 +54,23 @@
         "npm-run-all": "^4.1.2",
         "prettier": "^1.11.1",
         "shx": "^0.2.2",
-        "solc": "^0.4.18",
+        "solc": "^0.4.22",
         "tslint": "5.8.0",
         "typescript": "2.7.1",
         "yargs": "^10.0.3"
     },
     "dependencies": {
-        "0x.js": "^0.34.0",
-        "@0xproject/deployer": "^0.3.4",
-        "@0xproject/json-schemas": "^0.7.18",
-        "@0xproject/types": "^0.4.2",
-        "@0xproject/typescript-typings": "^0.0.2",
-        "@0xproject/utils": "^0.4.4",
-        "@0xproject/web3-wrapper": "^0.4.0",
-        "bluebird": "^3.5.0",
+        "0x.js": "^0.36.1",
+        "@0xproject/deployer": "^0.4.1",
+        "@0xproject/types": "^0.6.1",
+        "@0xproject/typescript-typings": "^0.2.0",
+        "@0xproject/utils": "^0.5.2",
+        "@0xproject/web3-wrapper": "^0.6.1",
         "bn.js": "^4.11.8",
         "ethereumjs-abi": "^0.6.4",
         "ethereumjs-util": "^5.1.1",
         "ethers-contracts": "^2.2.1",
-        "isomorphic-fetch": "^2.2.1",
         "lodash": "^4.17.4",
-        "request": "^2.81.0",
-        "web3": "^0.20.0",
-        "web3-eth-abi": "^1.0.0-beta.24"
+        "web3": "^0.20.0"
     }
 }

packages/contracts/test/ether_token.ts

@@ -9,7 +9,7 @@ import { ContractName } from '../util/types';
 
 import { chaiSetup } from './utils/chai_setup';
 import { deployer } from './utils/deployer';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -26,7 +26,7 @@ describe('EtherToken', () => {
 
         const etherToken = await deployer.deployAsync(ContractName.EtherToken);
         etherTokenAddress = etherToken.address;
-        zeroEx = new ZeroEx(web3.currentProvider, {
+        zeroEx = new ZeroEx(provider, {
             gasPrice,
             networkId: constants.TESTRPC_NETWORK_ID,
         });
@@ -51,7 +51,7 @@ describe('EtherToken', () => {
             const initEthBalance = await web3Wrapper.getBalanceInWeiAsync(account);
             const initEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
 
-            const ethToDeposit = new BigNumber(web3.toWei(1, 'ether'));
+            const ethToDeposit = new BigNumber(Web3Wrapper.toWei(new BigNumber(1)));
 
             const txHash = await zeroEx.etherToken.depositAsync(etherTokenAddress, ethToDeposit, account);
             const receipt = await zeroEx.awaitTransactionMinedAsync(txHash);
@@ -76,7 +76,7 @@ describe('EtherToken', () => {
         });
 
         it('should convert ether tokens to ether with sufficient balance', async () => {
-            const ethToDeposit = new BigNumber(web3.toWei(1, 'ether'));
+            const ethToDeposit = new BigNumber(Web3Wrapper.toWei(new BigNumber(1)));
             await zeroEx.etherToken.depositAsync(etherTokenAddress, ethToDeposit, account);
             const initEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
             const initEthBalance = await web3Wrapper.getBalanceInWeiAsync(account);

packages/contracts/test/exchange/core.ts

@@ -22,7 +22,7 @@ import { OrderFactory } from '../../util/order_factory';
 import { BalancesByOwner, ContractName, ExchangeContractErrs } from '../../util/types';
 import { chaiSetup } from '../utils/chai_setup';
 import { deployer } from '../utils/deployer';
-import { web3, web3Wrapper } from '../utils/web3_wrapper';
+import { provider, web3Wrapper } from '../utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -59,22 +59,22 @@ describe('Exchange', () => {
             deployer.deployAsync(ContractName.DummyToken, constants.DUMMY_TOKEN_ARGS),
             deployer.deployAsync(ContractName.DummyToken, constants.DUMMY_TOKEN_ARGS),
         ]);
-        rep = new DummyTokenContract(web3Wrapper, repInstance.abi, repInstance.address);
-        dgd = new DummyTokenContract(web3Wrapper, dgdInstance.abi, dgdInstance.address);
-        zrx = new DummyTokenContract(web3Wrapper, zrxInstance.abi, zrxInstance.address);
+        rep = new DummyTokenContract(repInstance.abi, repInstance.address, provider);
+        dgd = new DummyTokenContract(dgdInstance.abi, dgdInstance.address, provider);
+        zrx = new DummyTokenContract(zrxInstance.abi, zrxInstance.address, provider);
         const tokenTransferProxyInstance = await deployer.deployAsync(ContractName.TokenTransferProxy);
         tokenTransferProxy = new TokenTransferProxyContract(
-            web3Wrapper,
             tokenTransferProxyInstance.abi,
             tokenTransferProxyInstance.address,
+            provider,
         );
         const exchangeInstance = await deployer.deployAsync(ContractName.Exchange, [
             zrx.address,
             tokenTransferProxy.address,
         ]);
-        exchange = new ExchangeContract(web3Wrapper, exchangeInstance.abi, exchangeInstance.address);
+        exchange = new ExchangeContract(exchangeInstance.abi, exchangeInstance.address, provider);
         await tokenTransferProxy.addAuthorizedAddress.sendTransactionAsync(exchange.address, { from: accounts[0] });
-        zeroEx = new ZeroEx(web3.currentProvider, {
+        zeroEx = new ZeroEx(provider, {
             exchangeContractAddress: exchange.address,
             networkId: constants.TESTRPC_NETWORK_ID,
         });

packages/contracts/test/exchange/helpers.ts

@@ -17,7 +17,7 @@ import { OrderFactory } from '../../util/order_factory';
 import { ContractName } from '../../util/types';
 import { chaiSetup } from '../utils/chai_setup';
 import { deployer } from '../utils/deployer';
-import { web3, web3Wrapper } from '../utils/web3_wrapper';
+import { provider, web3Wrapper } from '../utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -46,9 +46,9 @@ describe('Exchange', () => {
             zrx.address,
             tokenTransferProxy.address,
         ]);
-        const exchange = new ExchangeContract(web3Wrapper, exchangeInstance.abi, exchangeInstance.address);
+        const exchange = new ExchangeContract(exchangeInstance.abi, exchangeInstance.address, provider);
         await tokenTransferProxy.addAuthorizedAddress(exchange.address, { from: accounts[0] });
-        const zeroEx = new ZeroEx(web3.currentProvider, { networkId: constants.TESTRPC_NETWORK_ID });
+        const zeroEx = new ZeroEx(provider, { networkId: constants.TESTRPC_NETWORK_ID });
         exchangeWrapper = new ExchangeWrapper(exchange, zeroEx);
         const defaultOrderParams = {
             exchangeContractAddress: exchange.address,

packages/contracts/test/exchange/wrapper.ts

@@ -22,7 +22,7 @@ import { OrderFactory } from '../../util/order_factory';
 import { BalancesByOwner, ContractName } from '../../util/types';
 import { chaiSetup } from '../utils/chai_setup';
 import { deployer } from '../utils/deployer';
-import { web3, web3Wrapper } from '../utils/web3_wrapper';
+import { provider, web3Wrapper } from '../utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -59,28 +59,24 @@ describe('Exchange', () => {
             deployer.deployAsync(ContractName.DummyToken, constants.DUMMY_TOKEN_ARGS),
             deployer.deployAsync(ContractName.DummyToken, constants.DUMMY_TOKEN_ARGS),
         ]);
-        rep = new DummyTokenContract(web3Wrapper, repInstance.abi, repInstance.address);
-        dgd = new DummyTokenContract(web3Wrapper, dgdInstance.abi, dgdInstance.address);
-        zrx = new DummyTokenContract(web3Wrapper, zrxInstance.abi, zrxInstance.address);
+        rep = new DummyTokenContract(repInstance.abi, repInstance.address, provider);
+        dgd = new DummyTokenContract(dgdInstance.abi, dgdInstance.address, provider);
+        zrx = new DummyTokenContract(zrxInstance.abi, zrxInstance.address, provider);
         const tokenRegistryInstance = await deployer.deployAsync(ContractName.TokenRegistry);
-        tokenRegistry = new TokenRegistryContract(
-            web3Wrapper,
-            tokenRegistryInstance.abi,
-            tokenRegistryInstance.address,
-        );
+        tokenRegistry = new TokenRegistryContract(tokenRegistryInstance.abi, tokenRegistryInstance.address, provider);
         const tokenTransferProxyInstance = await deployer.deployAsync(ContractName.TokenTransferProxy);
         tokenTransferProxy = new TokenTransferProxyContract(
-            web3Wrapper,
             tokenTransferProxyInstance.abi,
             tokenTransferProxyInstance.address,
+            provider,
         );
         const exchangeInstance = await deployer.deployAsync(ContractName.Exchange, [
             zrx.address,
             tokenTransferProxy.address,
         ]);
-        exchange = new ExchangeContract(web3Wrapper, exchangeInstance.abi, exchangeInstance.address);
+        exchange = new ExchangeContract(exchangeInstance.abi, exchangeInstance.address, provider);
         await tokenTransferProxy.addAuthorizedAddress.sendTransactionAsync(exchange.address, { from: accounts[0] });
-        const zeroEx = new ZeroEx(web3.currentProvider, { networkId: constants.TESTRPC_NETWORK_ID });
+        const zeroEx = new ZeroEx(provider, { networkId: constants.TESTRPC_NETWORK_ID });
         exWrapper = new ExchangeWrapper(exchange, zeroEx);
 
         const defaultOrderParams = {

packages/contracts/test/multi_sig_with_time_lock.ts

@@ -15,13 +15,13 @@ import { ContractName, SubmissionContractEventArgs } from '../util/types';
 
 import { chaiSetup } from './utils/chai_setup';
 import { deployer } from './utils/deployer';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 const MULTI_SIG_ABI = artifacts.MultiSigWalletWithTimeLockArtifact.networks[constants.TESTRPC_NETWORK_ID].abi;
 chaiSetup.configure();
 const expect = chai.expect;
 const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
-const zeroEx = new ZeroEx(web3.currentProvider, { networkId: constants.TESTRPC_NETWORK_ID });
+const zeroEx = new ZeroEx(provider, { networkId: constants.TESTRPC_NETWORK_ID });
 const abiDecoder = new AbiDecoder([MULTI_SIG_ABI]);
 
 describe('MultiSigWalletWithTimeLock', () => {
@@ -46,16 +46,16 @@ describe('MultiSigWalletWithTimeLock', () => {
 
     describe('changeTimeLock', () => {
         describe('initially non-time-locked', async () => {
-            before('deploy a walet', async () => {
+            before('deploy a wallet', async () => {
                 const multiSigInstance = await deployer.deployAsync(ContractName.MultiSigWalletWithTimeLock, [
                     owners,
                     SIGNATURES_REQUIRED,
                     0,
                 ]);
                 multiSig = new MultiSigWalletWithTimeLockContract(
-                    web3Wrapper,
                     multiSigInstance.abi,
                     multiSigInstance.address,
+                    provider,
                 );
                 multiSigWrapper = new MultiSigWrapper((multiSig as any) as MultiSigWalletContract);
 
@@ -143,16 +143,16 @@ describe('MultiSigWalletWithTimeLock', () => {
             });
         });
         describe('initially time-locked', async () => {
-            before('deploy a walet', async () => {
+            before('deploy a wallet', async () => {
                 const multiSigInstance = await deployer.deployAsync(ContractName.MultiSigWalletWithTimeLock, [
                     owners,
                     SIGNATURES_REQUIRED,
                     SECONDS_TIME_LOCKED,
                 ]);
                 multiSig = new MultiSigWalletWithTimeLockContract(
-                    web3Wrapper,
                     multiSigInstance.abi,
                     multiSigInstance.address,
+                    provider,
                 );
                 multiSigWrapper = new MultiSigWrapper((multiSig as any) as MultiSigWalletContract);
 

packages/contracts/test/multi_sig_with_time_lock_except_remove_auth_addr.ts

@@ -16,7 +16,7 @@ import { ContractName, SubmissionContractEventArgs, TransactionDataParams } from
 
 import { chaiSetup } from './utils/chai_setup';
 import { deployer } from './utils/deployer';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 const PROXY_ABI = artifacts.TokenTransferProxyArtifact.networks[constants.TESTRPC_NETWORK_ID].abi;
 const MUTISIG_WALLET_WITH_TIME_LOCK_EXCEPT_REMOVE_AUTHORIZED_ADDRESS_ABI =
     artifacts.MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddressArtifact.networks[constants.TESTRPC_NETWORK_ID]
@@ -28,7 +28,7 @@ const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
 const abiDecoder = new AbiDecoder([MUTISIG_WALLET_WITH_TIME_LOCK_EXCEPT_REMOVE_AUTHORIZED_ADDRESS_ABI]);
 
 describe('MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress', () => {
-    const zeroEx = new ZeroEx(web3.currentProvider, { networkId: constants.TESTRPC_NETWORK_ID });
+    const zeroEx = new ZeroEx(provider, { networkId: constants.TESTRPC_NETWORK_ID });
     let owners: string[];
     const requiredApprovals = 2;
     const SECONDS_TIME_LOCKED = 1000000;
@@ -49,9 +49,9 @@ describe('MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress', () => {
         const initialOwner = accounts[0];
         const tokenTransferProxyInstance = await deployer.deployAsync(ContractName.TokenTransferProxy);
         tokenTransferProxy = new TokenTransferProxyContract(
-            web3Wrapper,
             tokenTransferProxyInstance.abi,
             tokenTransferProxyInstance.address,
+            provider,
         );
         await tokenTransferProxy.addAuthorizedAddress.sendTransactionAsync(authorizedAddress, {
             from: initialOwner,
@@ -61,9 +61,9 @@ describe('MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress', () => {
             [owners, requiredApprovals, SECONDS_TIME_LOCKED, tokenTransferProxy.address],
         );
         multiSig = new MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddressContract(
-            web3Wrapper,
             multiSigInstance.abi,
             multiSigInstance.address,
+            provider,
         );
         await tokenTransferProxy.transferOwnership.sendTransactionAsync(multiSig.address, {
             from: initialOwner,

packages/contracts/test/token_registry.ts

@@ -1,6 +1,6 @@
 import { ZeroEx } from '0x.js';
 import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
-import { BigNumber } from '@0xproject/utils';
+import { BigNumber, NULL_BYTES } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
 import ethUtil = require('ethereumjs-util');
@@ -14,7 +14,7 @@ import { ContractName } from '../util/types';
 
 import { chaiSetup } from './utils/chai_setup';
 import { deployer } from './utils/deployer';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -30,7 +30,7 @@ describe('TokenRegistry', () => {
         owner = accounts[0];
         notOwner = accounts[1];
         const tokenRegInstance = await deployer.deployAsync(ContractName.TokenRegistry);
-        tokenReg = new TokenRegistryContract(web3Wrapper, tokenRegInstance.abi, tokenRegInstance.address);
+        tokenReg = new TokenRegistryContract(tokenRegInstance.abi, tokenRegInstance.address, provider);
         tokenRegWrapper = new TokenRegWrapper(tokenReg);
     });
     beforeEach(async () => {
@@ -66,8 +66,8 @@ describe('TokenRegistry', () => {
         name: '',
         symbol: '',
         decimals: 0,
-        ipfsHash: constants.NULL_BYTES,
-        swarmHash: constants.NULL_BYTES,
+        ipfsHash: NULL_BYTES,
+        swarmHash: NULL_BYTES,
     };
 
     describe('addToken', () => {

packages/contracts/test/token_transfer_proxy/auth.ts

@@ -8,7 +8,7 @@ import { constants } from '../../util/constants';
 import { ContractName } from '../../util/types';
 import { chaiSetup } from '../utils/chai_setup';
 import { deployer } from '../utils/deployer';
-import { web3, web3Wrapper } from '../utils/web3_wrapper';
+import { provider, web3Wrapper } from '../utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -25,9 +25,9 @@ describe('TokenTransferProxy', () => {
         notOwner = accounts[1];
         const tokenTransferProxyInstance = await deployer.deployAsync(ContractName.TokenTransferProxy);
         tokenTransferProxy = new TokenTransferProxyContract(
-            web3Wrapper,
             tokenTransferProxyInstance.abi,
             tokenTransferProxyInstance.address,
+            provider,
         );
     });
     beforeEach(async () => {

packages/contracts/test/token_transfer_proxy/transfer_from.ts

@@ -11,7 +11,7 @@ import { constants } from '../../util/constants';
 import { ContractName } from '../../util/types';
 import { chaiSetup } from '../utils/chai_setup';
 import { deployer } from '../utils/deployer';
-import { web3, web3Wrapper } from '../utils/web3_wrapper';
+import { provider, web3Wrapper } from '../utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -33,12 +33,12 @@ describe('TokenTransferProxy', () => {
         owner = notAuthorized = accounts[0];
         const tokenTransferProxyInstance = await deployer.deployAsync(ContractName.TokenTransferProxy);
         tokenTransferProxy = new TokenTransferProxyContract(
-            web3Wrapper,
             tokenTransferProxyInstance.abi,
             tokenTransferProxyInstance.address,
+            provider,
         );
         const repInstance = await deployer.deployAsync(ContractName.DummyToken, constants.DUMMY_TOKEN_ARGS);
-        rep = new DummyTokenContract(web3Wrapper, repInstance.abi, repInstance.address);
+        rep = new DummyTokenContract(repInstance.abi, repInstance.address, provider);
 
         dmyBalances = new Balances([rep], [accounts[0], accounts[1]]);
         await Promise.all([

packages/contracts/test/tutorials/arbitrage.ts

@@ -17,7 +17,7 @@ import { OrderFactory } from '../../util/order_factory';
 import { BalancesByOwner, ContractName, ExchangeContractErrs } from '../../util/types';
 import { chaiSetup } from '../utils/chai_setup';
 import { deployer } from '../utils/deployer';
-import { web3, web3Wrapper } from '../utils/web3_wrapper';
+import { provider, web3Wrapper } from '../utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -69,18 +69,18 @@ describe('Arbitrage', () => {
             edTakerFee,
             edFeeRebate,
         ]);
-        etherDelta = new EtherDeltaContract(web3Wrapper, etherDeltaInstance.abi, etherDeltaInstance.address);
+        etherDelta = new EtherDeltaContract(etherDeltaInstance.abi, etherDeltaInstance.address, provider);
         const tokenTransferProxy = await deployer.deployAsync(ContractName.TokenTransferProxy);
         const exchangeInstance = await deployer.deployAsync(ContractName.Exchange, [
             zrx.address,
             tokenTransferProxy.address,
         ]);
         await tokenTransferProxy.addAuthorizedAddress(exchangeInstance.address, { from: accounts[0] });
-        zeroEx = new ZeroEx(web3.currentProvider, {
+        zeroEx = new ZeroEx(provider, {
             exchangeContractAddress: exchangeInstance.address,
             networkId: constants.TESTRPC_NETWORK_ID,
         });
-        const exchange = new ExchangeContract(web3Wrapper, exchangeInstance.abi, exchangeInstance.address);
+        const exchange = new ExchangeContract(exchangeInstance.abi, exchangeInstance.address, provider);
         exWrapper = new ExchangeWrapper(exchange, zeroEx);
 
         makerTokenAmount = ZeroEx.toBaseUnitAmount(new BigNumber(1), 18);
@@ -102,7 +102,7 @@ describe('Arbitrage', () => {
             etherDelta.address,
             tokenTransferProxy.address,
         ]);
-        arbitrage = new ArbitrageContract(web3Wrapper, arbitrageInstance.abi, arbitrageInstance.address);
+        arbitrage = new ArbitrageContract(arbitrageInstance.abi, arbitrageInstance.address, provider);
         // Enable arbitrage and withdrawals of tokens
         await arbitrage.setAllowances.sendTransactionAsync(weth.address, { from: coinbase });
         await arbitrage.setAllowances.sendTransactionAsync(zrx.address, { from: coinbase });

packages/contracts/test/unlimited_allowance_token.ts

@@ -11,7 +11,7 @@ import { ContractName } from '../util/types';
 
 import { chaiSetup } from './utils/chai_setup';
 import { deployer } from './utils/deployer';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -23,7 +23,7 @@ describe('UnlimitedAllowanceToken', () => {
     const config = {
         networkId: constants.TESTRPC_NETWORK_ID,
     };
-    const zeroEx = new ZeroEx(web3.currentProvider, config);
+    const zeroEx = new ZeroEx(provider, config);
 
     const MAX_MINT_VALUE = new BigNumber(100000000000000000000);
     let tokenAddress: string;
@@ -34,7 +34,7 @@ describe('UnlimitedAllowanceToken', () => {
         owner = accounts[0];
         spender = accounts[1];
         const tokenInstance = await deployer.deployAsync(ContractName.DummyToken, constants.DUMMY_TOKEN_ARGS);
-        token = new DummyTokenContract(web3Wrapper, tokenInstance.abi, tokenInstance.address);
+        token = new DummyTokenContract(tokenInstance.abi, tokenInstance.address, provider);
         await token.mint.sendTransactionAsync(MAX_MINT_VALUE, { from: owner });
         tokenAddress = token.address;
     });

packages/contracts/test/utils/deployer.ts

@@ -7,9 +7,8 @@ import { constants } from '../../util/constants';
 import { web3 } from './web3_wrapper';
 
 const deployerOpts = {
-    web3Provider: web3.currentProvider,
-    artifactsDir: path.resolve('src', 'artifacts'),
-    jsonrpcUrl: devConstants.RPC_URL,
+    provider: web3.currentProvider,
+    artifactsDir: path.resolve('lib', 'src', 'artifacts'),
     networkId: constants.TESTRPC_NETWORK_ID,
     defaults: {
         gas: devConstants.GAS_ESTIMATE,

packages/contracts/test/utils/web3_wrapper.ts

@@ -1,6 +1,8 @@
 import { web3Factory } from '@0xproject/dev-utils';
+import { Provider } from '@0xproject/types';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 
-const web3ProviderConfig = { shouldUseInProcessGanache: true };
-export const web3 = web3Factory.create(web3ProviderConfig);
-export const web3Wrapper = new Web3Wrapper(web3.currentProvider);
+const providerConfigs = { shouldUseInProcessGanache: true };
+export const web3 = web3Factory.create(providerConfigs);
+export const provider = web3.currentProvider;
+export const web3Wrapper = new Web3Wrapper(provider);

packages/contracts/test/zrx_token.ts

@@ -11,7 +11,7 @@ import { ContractName } from '../util/types';
 
 import { chaiSetup } from './utils/chai_setup';
 import { deployer } from './utils/deployer';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -31,11 +31,11 @@ describe('ZRXToken', () => {
         const accounts = await web3Wrapper.getAvailableAddressesAsync();
         owner = accounts[0];
         spender = accounts[1];
-        zeroEx = new ZeroEx(web3.currentProvider, {
+        zeroEx = new ZeroEx(provider, {
             networkId: constants.TESTRPC_NETWORK_ID,
         });
         const zrxInstance = await deployer.deployAsync(ContractName.ZRXToken);
-        zrx = new ZRXTokenContract(web3Wrapper, zrxInstance.abi, zrxInstance.address);
+        zrx = new ZRXTokenContract(zrxInstance.abi, zrxInstance.address, provider);
         zrxAddress = zrx.address;
         MAX_UINT = zeroEx.token.UNLIMITED_ALLOWANCE_IN_BASE_UNITS;
     });

packages/contracts/util/constants.ts

@@ -4,7 +4,6 @@ const DUMMY_TOKEN_DECIMALS = 18;
 const DUMMY_TOKEN_TOTAL_SUPPLY = 0;
 
 export const constants = {
-    NULL_BYTES: '0x',
     INVALID_OPCODE: 'invalid opcode',
     REVERT: 'revert',
     TESTRPC_NETWORK_ID: 50,

packages/contracts/util/crypto.ts

@@ -4,14 +4,14 @@ import ethUtil = require('ethereumjs-util');
 import * as _ from 'lodash';
 
 export const crypto = {
-    /*
-   * We convert types from JS to Solidity as follows:
-   * BigNumber -> uint256
-   * number -> uint8
-   * string -> string
-   * boolean -> bool
-   * valid Ethereum address -> address
-   */
+    /**
+     * We convert types from JS to Solidity as follows:
+     * BigNumber -> uint256
+     * number -> uint8
+     * string -> string
+     * boolean -> bool
+     * valid Ethereum address -> address
+     */
     solSHA3(args: any[]): Buffer {
         return crypto._solHash(args, ABI.soliditySHA3);
     },