JuiceSwap Swap Router

Smart contracts for swapping on the JuiceSwap V3 protocol.

JuiceSwap is a fork of Uniswap V3 with custom modifications including a 50% maximum protocol fee cap (governance-controlled).

Installation

npm install @juiceswapxyz/swap-router-contracts

or

yarn add @juiceswapxyz/swap-router-contracts

Local Deployment

To deploy this code to a local testnet, import bytecode from the npm package artifacts:

import {
  abi as SWAP_ROUTER_ABI,
  bytecode as SWAP_ROUTER_BYTECODE,
} from '@juiceswapxyz/swap-router-contracts/artifacts/contracts/SwapRouter02.sol/SwapRouter02.json'

// deploy the bytecode

This ensures you are testing against the same bytecode deployed to mainnet and public testnets.

Using Solidity Interfaces

Import swap router contract interfaces into your Solidity smart contracts:

import '@juiceswapxyz/swap-router-contracts/contracts/interfaces/ISwapRouter02.sol';

contract MyContract {
  ISwapRouter02 router;

  function doSomethingWithSwapRouter() {
    // router.exactInput(...);
  }
}

Development

Install Dependencies

yarn install

Compile Contracts

yarn compile

Run Tests

Some tests use Hardhat mainnet forking and require an archive node. Create a .env file in the workspace root:

ARCHIVE_RPC_URL='...'

Or set the variable when running tests:

export ARCHIVE_RPC_URL='...' && yarn test

License

GPL-2.0-or-later