Add Uniswap V3 pool liquidity locally

01_deployContracts.js

const { Contract, ContractFactory, utils, BigNumber } = require("ethers")
const WETH9 = require("../WETH9.json")

const artifacts = {
  UniswapV3Factory: require("@uniswap/v3-core/artifacts/contracts/UniswapV3Factory.sol/UniswapV3Factory.json"),
  SwapRouter: require("@uniswap/v3-periphery/artifacts/contracts/SwapRouter.sol/SwapRouter.json"),
  NFTDescriptor: require("@uniswap/v3-periphery/artifacts/contracts/libraries/NFTDescriptor.sol/NFTDescriptor.json"),
  NonfungibleTokenPositionDescriptor: require("@uniswap/v3-periphery/artifacts/contracts/NonfungibleTokenPositionDescriptor.sol/NonfungibleTokenPositionDescriptor.json"),
  NonfungiblePositionManager: require("@uniswap/v3-periphery/artifacts/contracts/NonfungiblePositionManager.sol/NonfungiblePositionManager.json"),
  WETH9,
};

const linkLibraries = ({ bytecode, linkReferences }, libraries) => {
  Object.keys(linkReferences).forEach((fileName) => {
    Object.keys(linkReferences[fileName]).forEach((contractName) => {
      if (!libraries.hasOwnProperty(contractName)) {
        throw new Error(`Missing link library name ${contractName}`)
      }
      const address = utils
        .getAddress(libraries[contractName])
        .toLowerCase()
        .slice(2)
      linkReferences[fileName][contractName].forEach(
        ({ start, length }) => {
          const start2 = 2 + start * 2
          const length2 = length * 2
          bytecode = bytecode
            .slice(0, start2)
            .concat(address)
            .concat(bytecode.slice(start2 + length2, bytecode.length))
        }
      )
    })
  })
  return bytecode
}

async function main() {
  const [owner] = await ethers.getSigners();

  Weth = new ContractFactory(artifacts.WETH9.abi, artifacts.WETH9.bytecode, owner);
  weth = await Weth.deploy();

  Factory = new ContractFactory(artifacts.UniswapV3Factory.abi, artifacts.UniswapV3Factory.bytecode, owner);
  factory = await Factory.deploy();

  SwapRouter = new ContractFactory(artifacts.SwapRouter.abi, artifacts.SwapRouter.bytecode, owner);
  swapRouter = await SwapRouter.deploy(factory.address, weth.address);

  NFTDescriptor = new ContractFactory(artifacts.NFTDescriptor.abi, artifacts.NFTDescriptor.bytecode, owner);
  nftDescriptor = await NFTDescriptor.deploy();

  const linkedBytecode = linkLibraries(
    {
      bytecode: artifacts.NonfungibleTokenPositionDescriptor.bytecode,
      linkReferences: {
        "NFTDescriptor.sol": {
          NFTDescriptor: [
            {
              length: 20,
              start: 1261,
            },
          ],
        },
      },
    },
    {
      NFTDescriptor: nftDescriptor.address,
    }
  );

  NonfungibleTokenPositionDescriptor = new ContractFactory(artifacts.NonfungibleTokenPositionDescriptor.abi, linkedBytecode, owner);
  nonfungibleTokenPositionDescriptor = await NonfungibleTokenPositionDescriptor.deploy(weth.address);

  NonfungiblePositionManager = new ContractFactory(artifacts.NonfungiblePositionManager.abi, artifacts.NonfungiblePositionManager.bytecode, owner);
  nonfungiblePositionManager = await NonfungiblePositionManager.deploy(factory.address, weth.address, nonfungibleTokenPositionDescriptor.address);

  console.log('WETH_ADDRESS=', `'${weth.address}'`)
  console.log('FACTORY_ADDRESS=', `'${factory.address}'`)
  console.log('SWAP_ROUTER_ADDRESS=', `'${swapRouter.address}'`)
  console.log('NFT_DESCRIPTOR_ADDRESS=', `'${nftDescriptor.address}'`)
  console.log('POSITION_DESCRIPTOR_ADDRESS=', `'${nonfungibleTokenPositionDescriptor.address}'`)
  console.log('POSITION_MANAGER_ADDRESS=', `'${nonfungiblePositionManager.address}'`)
}

/*
npx hardhat run --network localhost scripts/01_deployContracts.js
*/

main()
  .then(() => process.exit(0))
  .catch((error) => {
    console.error(error);
    process.exit(1);
  });

02_deployTokens.js

async function main() {
  const [owner, signer2] = await ethers.getSigners();

  Tether = await ethers.getContractFactory('Tether', owner);
  tether = await Tether.deploy();

  Usdc = await ethers.getContractFactory('UsdCoin', owner);
  usdc = await Usdc.deploy();

  WrappedBitcoin = await ethers.getContractFactory('WrappedBitcoin', owner);
  wrappedBitcoin = await WrappedBitcoin.deploy();

  await tether.connect(owner).mint(
    signer2.address,
    ethers.utils.parseEther('100000')
  )
  await usdc.connect(owner).mint(
    signer2.address,
    ethers.utils.parseEther('100000')
  )
  await wrappedBitcoin.connect(owner).mint(
    signer2.address,
    ethers.utils.parseEther('100000')
  )

  console.log('TETHER_ADDRESS=', `'${tether.address}'`)
  console.log('USDC_ADDRESS=', `'${usdc.address}'`)
  console.log('WRAPPED_BITCOIN_ADDRESS=', `'${wrappedBitcoin.address}'`)
}

/*
npx hardhat run --network localhost scripts/02_deployTokens.js
*/


main()
  .then(() => process.exit(0))
  .catch((error) => {
    console.error(error);
    process.exit(1);
  });

03_deployPools.js

// Token addresses
TETHER_ADDRESS= '0x0165878A594ca255338adfa4d48449f69242Eb8F'
USDC_ADDRESS= '0xa513E6E4b8f2a923D98304ec87F64353C4D5C853'
WRAPPED_BITCOIN_ADDRESS= '0x2279B7A0a67DB372996a5FaB50D91eAA73d2eBe6'

// Uniswap contract address
WETH_ADDRESS= '0x5FbDB2315678afecb367f032d93F642f64180aa3'
FACTORY_ADDRESS= '0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512'
SWAP_ROUTER_ADDRESS= '0x9fE46736679d2D9a65F0992F2272dE9f3c7fa6e0'
NFT_DESCRIPTOR_ADDRESS= '0xCf7Ed3AccA5a467e9e704C703E8D87F634fB0Fc9'
POSITION_DESCRIPTOR_ADDRESS= '0xDc64a140Aa3E981100a9becA4E685f962f0cF6C9'
POSITION_MANAGER_ADDRESS= '0x5FC8d32690cc91D4c39d9d3abcBD16989F875707'

const artifacts = {
  UniswapV3Factory: require("@uniswap/v3-core/artifacts/contracts/UniswapV3Factory.sol/UniswapV3Factory.json"),
  NonfungiblePositionManager: require("@uniswap/v3-periphery/artifacts/contracts/NonfungiblePositionManager.sol/NonfungiblePositionManager.json"),
};

const { Contract, BigNumber } = require("ethers")
const bn = require('bignumber.js')
bn.config({ EXPONENTIAL_AT: 999999, DECIMAL_PLACES: 40 })

const provider = waffle.provider;

function encodePriceSqrt(reserve1, reserve0) {
  return BigNumber.from(
    new bn(reserve1.toString())
      .div(reserve0.toString())
      .sqrt()
      .multipliedBy(new bn(2).pow(96))
      .integerValue(3)
      .toString()
  )
}

const nonfungiblePositionManager = new Contract(
  POSITION_MANAGER_ADDRESS,
  artifacts.NonfungiblePositionManager.abi,
  provider
)
const factory = new Contract(
  FACTORY_ADDRESS,
  artifacts.UniswapV3Factory.abi,
  provider
)

async function deployPool(token0, token1, fee, price) {
  const [owner] = await ethers.getSigners();
  await nonfungiblePositionManager.connect(owner).createAndInitializePoolIfNecessary(
    token0,
    token1,
    fee,
    price,
    { gasLimit: 5000000 }
  )
  const poolAddress = await factory.connect(owner).getPool(
    token0,
    token1,
    fee,
  )
  return poolAddress
}


async function main() {
  const usdtUsdc500 = await deployPool(TETHER_ADDRESS, USDC_ADDRESS, 500, encodePriceSqrt(1, 1))
  console.log('USDT_USDC_500=', `'${usdtUsdc500}'`)
}

/*
npx hardhat run --network localhost scripts/03_deployPools.js
*/

main()
  .then(() => process.exit(0))
  .catch((error) => {
    console.error(error);
    process.exit(1);
  });

04_addLiquidity.js

// Uniswap contract addresses
WETH_ADDRESS= '0x5FbDB2315678afecb367f032d93F642f64180aa3'
FACTORY_ADDRESS= '0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512'
SWAP_ROUTER_ADDRESS= '0x9fE46736679d2D9a65F0992F2272dE9f3c7fa6e0'
NFT_DESCRIPTOR_ADDRESS= '0xCf7Ed3AccA5a467e9e704C703E8D87F634fB0Fc9'
POSITION_DESCRIPTOR_ADDRESS= '0xDc64a140Aa3E981100a9becA4E685f962f0cF6C9'
POSITION_MANAGER_ADDRESS= '0x5FC8d32690cc91D4c39d9d3abcBD16989F875707'

// Pool addresses
USDT_USDC_500= '0x1FA8DDa81477A5b6FA1b2e149e93ed9C7928992F'

// Token addresses
TETHER_ADDRESS= '0x0165878A594ca255338adfa4d48449f69242Eb8F'
USDC_ADDRESS= '0xa513E6E4b8f2a923D98304ec87F64353C4D5C853'
WRAPPED_BITCOIN_ADDRESS= '0x2279B7A0a67DB372996a5FaB50D91eAA73d2eBe6'

const artifacts = {
  NonfungiblePositionManager: require("@uniswap/v3-periphery/artifacts/contracts/NonfungiblePositionManager.sol/NonfungiblePositionManager.json"),
  Usdt: require("../artifacts/contracts/Tether.sol/Tether.json"),
  Usdc: require("../artifacts/contracts/UsdCoin.sol/UsdCoin.json"),
  UniswapV3Pool: require("@uniswap/v3-core/artifacts/contracts/UniswapV3Pool.sol/UniswapV3Pool.json"),
};

const { Contract } = require("ethers")
const { Token } = require('@uniswap/sdk-core')
const { Pool, Position, nearestUsableTick } = require('@uniswap/v3-sdk')

async function getPoolData(poolContract) {
  const [tickSpacing, fee, liquidity, slot0] = await Promise.all([
    poolContract.tickSpacing(),
    poolContract.fee(),
    poolContract.liquidity(),
    poolContract.slot0(),
  ])

  return {
    tickSpacing: tickSpacing,
    fee: fee,
    liquidity: liquidity,
    sqrtPriceX96: slot0[0],
    tick: slot0[1],
  }
}

async function main() {
  const [owner, signer2] = await ethers.getSigners();
  const provider = waffle.provider;

  const usdtContract = new Contract(TETHER_ADDRESS,artifacts.Usdt.abi,provider)
  const usdcContract = new Contract(USDC_ADDRESS,artifacts.Usdc.abi,provider)

  await usdtContract.connect(signer2).approve(POSITION_MANAGER_ADDRESS, ethers.utils.parseEther('1000'))
  await usdcContract.connect(signer2).approve(POSITION_MANAGER_ADDRESS, ethers.utils.parseEther('1000'))

  const poolContract = new Contract(USDT_USDC_500, artifacts.UniswapV3Pool.abi, provider)

  const poolData = await getPoolData(poolContract)

  const UsdtToken = new Token(31337, TETHER_ADDRESS, 18, 'USDT', 'Tether')
  const UsdcToken = new Token(31337, USDC_ADDRESS, 18, 'USDC', 'UsdCoin')

  const pool = new Pool(
    UsdtToken,
    UsdcToken,
    poolData.fee,
    poolData.sqrtPriceX96.toString(),
    poolData.liquidity.toString(),
    poolData.tick
  )

  const position = new Position({
    pool: pool,
    liquidity: ethers.utils.parseEther('1'),
    tickLower: nearestUsableTick(poolData.tick, poolData.tickSpacing) - poolData.tickSpacing * 2,
    tickUpper: nearestUsableTick(poolData.tick, poolData.tickSpacing) + poolData.tickSpacing * 2,
  })

  const { amount0: amount0Desired, amount1: amount1Desired} = position.mintAmounts

  params = {
    token0: TETHER_ADDRESS,
    token1: USDC_ADDRESS,
    fee: poolData.fee,
    tickLower: nearestUsableTick(poolData.tick, poolData.tickSpacing) - poolData.tickSpacing * 2,
    tickUpper: nearestUsableTick(poolData.tick, poolData.tickSpacing) + poolData.tickSpacing * 2,
    amount0Desired: amount0Desired.toString(),
    amount1Desired: amount1Desired.toString(),
    amount0Min: 0,
    amount1Min: 0,
    recipient: signer2.address,
    deadline: Math.floor(Date.now() / 1000) + (60 * 10)
  }

  const nonfungiblePositionManager = new Contract(
    POSITION_MANAGER_ADDRESS,
    artifacts.NonfungiblePositionManager.abi,
    provider
  )

  const tx = await nonfungiblePositionManager.connect(signer2).mint(
    params,
    { gasLimit: '1000000' }
  )
  const receipt = await tx.wait()
}

/*
npx hardhat run --network localhost scripts/04_addLiquidity.js
*/

main()
  .then(() => process.exit(0))
  .catch((error) => {
    console.error(error);
    process.exit(1);
  });

05_checkLiquidity.js

// pool
USDT_USDC_500= '0x1FA8DDa81477A5b6FA1b2e149e93ed9C7928992F'

const UniswapV3Pool = require("@uniswap/v3-core/artifacts/contracts/UniswapV3Pool.sol/UniswapV3Pool.json")
const { Contract } = require("ethers")

async function getPoolData(poolContract) {
  const [tickSpacing, fee, liquidity, slot0] = await Promise.all([
    poolContract.tickSpacing(),
    poolContract.fee(),
    poolContract.liquidity(),
    poolContract.slot0(),
  ])

  return {
    tickSpacing: tickSpacing,
    fee: fee,
    liquidity: liquidity.toString(),
    sqrtPriceX96: slot0[0],
    tick: slot0[1],
  }
}


async function main() {
  const provider = waffle.provider;
  const poolContract = new Contract(USDT_USDC_500, UniswapV3Pool.abi, provider)
  const poolData = await getPoolData(poolContract)
  console.log('poolData', poolData)
}

/*
npx hardhat run --network localhost scripts/05_checkLiquidity.js
*/

main()
  .then(() => process.exit(0))
  .catch((error) => {
    console.error(error);
    process.exit(1);
  });

hardhat.config.js

require("@nomiclabs/hardhat-waffle");

module.exports = {
  solidity: {
    version: "0.8.17",
    settings: {
      optimizer: {
        enabled: true,
        runs: 5000,
        details: { yul: false },
      },
    }
  },
};

package.json

{
  "name": "hardhat-v3-deploy-local-2",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "@nomiclabs/hardhat-ethers": "^2.1.1",
    "@nomiclabs/hardhat-waffle": "^2.0.3",
    "@openzeppelin/contracts": "^4.7.3",
    "@uniswap/v3-periphery": "^1.0.1",
    "@uniswap/v3-sdk": "^3.9.0",
    "bignumber.js": "^9.1.0",
    "ethereum-waffle": "^3.4.4",
    "ethers": "^5.7.1",
    "hardhat": "^2.11.2"
  }
}

Tether.sol

pragma solidity ^0.8.0;

import '@openzeppelin/contracts/token/ERC20/ERC20.sol';
import "@openzeppelin/contracts/access/Ownable.sol";

contract Tether is ERC20, Ownable {
  constructor() ERC20('Tether', 'USDT') {}

  function mint(address to, uint256 amount) public onlyOwner {
    _mint(to, amount);
  }
}

UsdCoin.sol

pragma solidity ^0.8.0;

import '@openzeppelin/contracts/token/ERC20/ERC20.sol';
import "@openzeppelin/contracts/access/Ownable.sol";

contract UsdCoin is ERC20, Ownable {
  constructor() ERC20('UsdCoin', 'USDC') {}

  function mint(address to, uint256 amount) public onlyOwner {
    _mint(to, amount);
  }
}

WETH9.json

{
  "bytecode": "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  "abi": [
    {
      "constant": true,
      "inputs": [],
      "name": "name",
      "outputs": [{ "name": "", "type": "string" }],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        { "name": "guy", "type": "address" },
        { "name": "wad", "type": "uint256" }
      ],
      "name": "approve",
      "outputs": [{ "name": "", "type": "bool" }],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [],
      "name": "totalSupply",
      "outputs": [{ "name": "", "type": "uint256" }],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        { "name": "src", "type": "address" },
        { "name": "dst", "type": "address" },
        { "name": "wad", "type": "uint256" }
      ],
      "name": "transferFrom",
      "outputs": [{ "name": "", "type": "bool" }],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [{ "name": "wad", "type": "uint256" }],
      "name": "withdraw",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [],
      "name": "decimals",
      "outputs": [{ "name": "", "type": "uint8" }],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [{ "name": "", "type": "address" }],
      "name": "balanceOf",
      "outputs": [{ "name": "", "type": "uint256" }],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [],
      "name": "symbol",
      "outputs": [{ "name": "", "type": "string" }],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        { "name": "dst", "type": "address" },
        { "name": "wad", "type": "uint256" }
      ],
      "name": "transfer",
      "outputs": [{ "name": "", "type": "bool" }],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [],
      "name": "deposit",
      "outputs": [],
      "payable": true,
      "stateMutability": "payable",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [
        { "name": "", "type": "address" },
        { "name": "", "type": "address" }
      ],
      "name": "allowance",
      "outputs": [{ "name": "", "type": "uint256" }],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    { "payable": true, "stateMutability": "payable", "type": "fallback" },
    {
      "anonymous": false,
      "inputs": [
        { "indexed": true, "name": "src", "type": "address" },
        { "indexed": true, "name": "guy", "type": "address" },
        { "indexed": false, "name": "wad", "type": "uint256" }
      ],
      "name": "Approval",
      "type": "event"
    },
    {
      "anonymous": false,
      "inputs": [
        { "indexed": true, "name": "src", "type": "address" },
        { "indexed": true, "name": "dst", "type": "address" },
        { "indexed": false, "name": "wad", "type": "uint256" }
      ],
      "name": "Transfer",
      "type": "event"
    },
    {
      "anonymous": false,
      "inputs": [
        { "indexed": true, "name": "dst", "type": "address" },
        { "indexed": false, "name": "wad", "type": "uint256" }
      ],
      "name": "Deposit",
      "type": "event"
    },
    {
      "anonymous": false,
      "inputs": [
        { "indexed": true, "name": "src", "type": "address" },
        { "indexed": false, "name": "wad", "type": "uint256" }
      ],
      "name": "Withdrawal",
      "type": "event"
    }
  ]
}

WrappedBitcoin.sol

pragma solidity ^0.8.0;

import '@openzeppelin/contracts/token/ERC20/ERC20.sol';
import "@openzeppelin/contracts/access/Ownable.sol";

contract WrappedBitcoin is ERC20, Ownable {
  constructor() ERC20('WrappedBitcoin', 'WBTC') {}

  function mint(address to, uint256 amount) public onlyOwner {
    _mint(to, amount);
  }
}

I am very happy about that I successfully executed the entire deployment process, thank you very much!!! 🥰

Hi @lxiiiixi,
I'm working on the local deployment and running into the same issue — a missing parameter error when deploying the NonfungibleTokenPositionDescriptor contract. Could you please clarify what your second parameter was that resolved the issue?