d06daf2957
* feat: integrate Rust router with asset-swapper WIP * fix: produce outputFees in the format the Rust router expects * fix: correct output fee calc and only use the rust router for sells * fix: make sure numbers sent to the rust router are integers * hack: try to debug why rust router output is being overestimated WIP * refactor: clean up router debugging code * fix: don't use negative output fees for sells * feat: try VIP sources in isolation and compare with routing all sources * fix: adjust for FQT overhead when choosing between VIP, all sources WIP * fix: pass gasPrice to path_optimizer for EP overhead calculations * feat: buy support with the Rust Router WIP * chore: WIP commit trying to get buys working * refactor: use samples instead of fills for the Rust router * feat: add vip handling hack to sample based routing * fix: revert to 200 samplings for rust router when using pure samples * refactor: remove old hacky Path based Rust code, add back feature toggle * fix: scale both fill output and adjustedOutput my same factor as input * feat: initial plumbing for supporting RFQ/Limit orders * fix: incorrect bump of input amount by one base unit before routing * fix: add fake samples for rfq/limit orders to fulfill the 3 sample req * fix pass rfq orders in the correct format to the rust router * chore: remove debugging logs and clean up code & comments * fix: use published version of @0x/neon-router * hack: scale routed amounts to account for precision loss of number/f64 * refactor: clean up code and address initial review comments * fix: only remove trailing 0 output samples before passing to the router * refactor: consolidate eth to output token calc into ethToOutputAmount fn * fix: interpolate input between samples on output amount instead of price * fix: return no path when we have no samples, add sanity asserts * refactor: fix interpolation comment wording * fix: remove double adjusted source route input amount * chore: update changelog for asset-swapper
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-zero-ex |
 |
The contracts used for settling trades within the protocol |
@0x/contracts-erc20 |
 |
Implementations of various ERC20 tokens |
@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 |
TypeScript/Javascript Packages
0x-specific packages
| Package | Version | Description |
|---|---|---|
@0x/asset-swapper |
 |
Package used to find and create aggregated swaps |
@0x/protocol-utils |
 |
A set of utilities for generating, parsing, signing and validating 0x orders |
@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/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/asset-swapper 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/asset-swapper yarn watch
Clean
Clean all packages:
yarn clean
Clean a specific package
PKG=@0x/asset-swapper 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/asset-swapper yarn rebuild
Lint
Lint all packages:
yarn lint
Lint a specific package:
PKG=@0x/asset-swapper yarn lint
Run Tests
Run all tests:
yarn test
Run a specific package's test:
PKG=@0x/asset-swapper yarn test
Run all contracts packages tests:
yarn test:contracts