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0x is an open protocol that facilitates trustless, low friction exchange of Ethereum-based assets. A full description of the protocol may be found in our whitepaper.

This repository is a monorepo including the 0x protocol smart contracts and numerous developer tools. Each public sub-package is independently published to NPM.

Published Packages

Package	Version	Description
0x.js		A Javascript library for interacting with the 0x protocol
@0xproject/abi-gen		Tool to generate TS wrappers from smart contract ABIs
@0xproject/assert		Type and schema assertions used by our packages
@0xproject/base-contract		BaseContract used by auto-generated abi-gen wrapper contracts
chai-as-promised-typescript-typings		Chai as promised typescript typings
chai-typescript-typings		Chai typescript typings
@0xproject/connect		A Javascript library for interacting with the Standard Relayer API
@0xproject/deployer		Solidity project compiler and deployer framework
@0xproject/dev-utils		Dev utils to be shared across 0x projects and packages
ethers-typescript-typings		Ethers.js typescript typings
@0xproject/json-schemas		0x-related json schemas
@0xproject/react-docs		React documentation component for rendering TypeDoc & Doxity generated JSON
@0xproject/react-shared		0x shared react components
@0xproject/sra-report		Generate reports for standard relayer API compliance
@0xproject/subproviders		Useful web3 subproviders (e.g LedgerSubprovider)
@0xproject/tslint-config		Custom 0x development TSLint rules
@0xproject/types		Shared type declarations
@0xproject/utils		Shared utilities
web3-typescript-typings		Web3 typescript typings
@0xproject/web3-wrapper		Web3 wrapper

Private Packages

Package	Description
@0xproject/contracts	0x solidity smart contracts & tests
@0xproject/react-docs-example	Example documentation site created with @0xproject/react-docs
@0xproject/monorepo-scripts	Shared monorepo scripts
@0xproject/testnet-faucets	A faucet micro-service that dispenses test ERC20 tokens or Ether
@0xproject/website	0x website & Portal DApp

Usage

Dedicated documentation pages:

• 0x.js Library
• 0x Connect
• Smart contracts
• Standard Relayer API

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.

Please read our contribution guidelines before getting started.

Install dependencies

If you don't have yarn workspaces enabled (Yarn < v1.0) - enable them:

yarn config set workspaces-experimental true

Then install dependencies

yarn install

Build

Build all packages

yarn lerna:run build

Continuously rebuild on exchange

yarn dev

Lint

Lint all packages

yarn lerna:run lint

Run Tests

Before running the tests, you will need to spin up a 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)

yarn testrpc

Then in your main terminal run

cd packages/contracts
yarn migrate
cd ..

And finally from the root project directory run

yarn lerna:run test