f9a794af93
* add balancer v2 * fetch balancer v2 pools from subgraph * feat: initial stab at a Balancer V2 Sampler WIP * feat: add sampling for buys and fix build issues WIP [untested] * fix: BalancerV2Sampler implementation issues, works on Kovan * chore: BalancerV2 sampling boilerplate * fix: update Balancer V2 mainnet address * fix: consolidate differences between the 2 working branches * fix: use mainnet Balancer V2 subgraph * fix: stack too deep by minimizing and inline Balancer V2 vault interface * fix: address review comments and clean up * fix: sampler vault interface and pools cache assuming a pool has swaps * address more review comments * fix: TS type issues and add a comment about deadline argument * fix: pools_cache_tests incorrect token addresses, prettier incompat * fix: make ERC20BridgeSampler support BalancerV2 non view sampler fns * fix: use a struct for passing encoded bridge data for Balancer V2 * chore: add changelog entries * fix: improve gas accuracy of gas schedule for Balancer V2 & Maker Psm * fix: don't exclude sources with stale caches & wait for cache refresh * rebase * `@0x/asset-swapper`: Fix stack too deep errors in sampler Co-authored-by: Kim Persson <kimpersson88@gmail.com> Co-authored-by: Lawrence Forman <me@merklejerk.com>
0x is an open protocol that facilitates trustless, low friction exchange of Ethereum-based assets. For more information on how it works, check out the 0x protocol specification.
This repository is a monorepo including the 0x protocol smart contracts and numerous developer tools. Each public sub-package is independently published to NPM.
Packages
Visit our developer portal for a comprehensive list of core & community maintained packages. All packages maintained with this monorepo are listed below.
Solidity Packages
These packages are all under development. See /contracts/README.md for a list of deployed packages.
| Package | Version | Description |
|---|---|---|
@0x/contracts-asset-proxy |
 |
AssetProxy contracts used within the protocol |
@0x/contracts-erc20 |
 |
Implementations of various ERC20 tokens |
@0x/contracts-erc721 |
 |
Implementations of various ERC721 tokens |
@0x/contracts-erc1155 |
 |
Implementations of various ERC1155 tokens |
@0x/contracts-exchange |
 |
The Exchange contract used for settling trades within the protocol |
@0x/contracts-exchange-forwarder |
 |
A Forwarder contract used to simplify UX for interacting with the protocol |
@0x/contracts-exchange-libs |
 |
Protocol specific libraries used within the Exchange contract |
@0x/contracts-extensions |
 |
Contracts that interact with and extend the functionality of the core protocol |
@0x/contracts-multisig |
 |
Various implementations of multisignature wallets, including the AssetProxyOwner contract that has permissions to upgrade the protocol |
@0x/contracts-test-utils |
 |
TypeScript/Javascript shared utilities used for testing contracts |
@0x/contracts-utils |
 |
Generic libraries and utilities used throughout all of the contracts |
@0x/contracts-coordinator |
 |
A contract that allows users to execute 0x transactions with permission from a Coordinator |
@0x/contracts-dev-utils |
 |
A contract contains utility functions for developers (such as validating many orders using a single eth_call) |
@0x/contracts-staking |
 |
Implements the stake-based liquidity incentives defined by ZEIP-31 |
TypeScript/Javascript Packages
0x-specific packages
| Package | Version | Description |
|---|---|---|
@0x/contract-addresses |
 |
A tiny utility library for getting known deployed contract addresses for a particular network. |
@0x/contract-wrappers |
 |
JS/TS wrappers for interacting with the 0x smart contracts |
@0x/order-utils |
 |
A set of utilities for generating, parsing, signing and validating 0x orders |
@0x/migrations |
 |
Migration tool for deploying 0x smart contracts on private testnets |
@0x/contract-artifacts |
 |
0x smart contract compilation artifacts |
Usage
Node version 6.x or 8.x is required.
Most of the packages require additional typings for external dependencies.
You can include those by prepending the @0x/typescript-typings package to your typeRoots config.
"typeRoots": ["node_modules/@0x/typescript-typings/types", "node_modules/@types"],
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.
Read our contribution guidelines.
Install dependencies
Make sure you are using Yarn v1.9.4. To install using brew:
brew install yarn@1.9.4
Then install dependencies
yarn install
Build
To build all packages:
yarn build
To build a specific package:
PKG=@0x/contract-wrappers yarn build
To build all contracts packages:
yarn build:contracts
Watch
To re-build all packages on change:
yarn watch
To watch a specific package and all it's dependent packages:
PKG=[NPM_PACKAGE_NAME] yarn watch
e.g
PKG=@0x/contract-wrappers yarn watch
Clean
Clean all packages:
yarn clean
Clean a specific package
PKG=0x.js yarn clean
Rebuild
To re-build (clean & build) all packages:
yarn rebuild
To re-build (clean & build) a specific package & it's deps:
PKG=@0x/contract-wrappers yarn rebuild
Lint
Lint all packages:
yarn lint
Lint a specific package:
PKG=@0x/contract-wrappers yarn lint
Run Tests
Run all tests:
yarn test
Run a specific package's test:
PKG=@0x/contract-wrappers yarn test
Run all contracts packages tests:
yarn test:contracts