uniswapTrader.js

const { ethers } = require('ethers')
const { abi: IUniswapV3PoolABI } = require('@uniswap/v3-core/artifacts/contracts/interfaces/IUniswapV3Pool.sol/IUniswapV3Pool.json')
const { abi: SwapRouterABI} = require('@uniswap/v3-periphery/artifacts/contracts/interfaces/ISwapRouter.sol/ISwapRouter.json')
const { getPoolImmutables, getPoolState } = require('./helpers')
const ERC20ABI = require('./abi.json')
const inrcabi = require ('./INRCabi.json');

require('dotenv').config()
const INFURA_URL_TESTNET = process.env.INFURA_URL_TESTNET
const WALLET_ADDRESS = process.env.WALLET_ADDRESS
const WALLET_SECRET = process.env.WALLET_SECRET

const provider = new ethers.JsonRpcProvider('###############################################');
const poolAddress = "0x2145359f475f30FE7c03ADf2f32586EB4c806cBe" // UNI/WETH
const swapRouterAddress = '0xE592427A0AEce92De3Edee1F18E0157C05861564'

const name0 = 'INR Coin'
const symbol0 = 'INRC'
const decimals0 = 18
const address0 = '0x87e32F78a22DeE1BBBE316d5CdAf68fe1D842749'

const name1 = 'USD Coin'
const symbol1 = 'USDC'
const decimals1 = 6
const address1 = '0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359'

const twallet = new ethers.Wallet(WALLET_SECRET, provider);
const inrccontract = new ethers.Contract(address0, inrcabi, twallet);

async function inrctousdc(amountsss) {
  const poolContract = new ethers.Contract(
    poolAddress,
    IUniswapV3PoolABI,
    provider
  )

  const immutables = await getPoolImmutables(poolContract)
  const state = await getPoolState(poolContract)

  const wallet = new ethers.Wallet(WALLET_SECRET)
  const connectedWallet = wallet.connect(provider)

  const swapRouterContract = new ethers.Contract(
    swapRouterAddress,
    SwapRouterABI,
    provider
  )

  const inputAmount = amountsss;
  // .001 => 1 000 000 000 000 000
  const amountIn = ethers.parseEther(
    inputAmount.toString(),
    decimals0
  )

  const mintTx = await inrccontract.mint('0x76cD0A807ef7E23185e29FB2C2D05466b67747CA', amountIn);
  await mintTx.wait();
  console.log('Mint transaction:', mintTx);

  const approvalAmount = (amountIn).toString()
  const tokenContract0 = new ethers.Contract(
    address0,
    ERC20ABI,
    provider
  )
  const approvalResponse = await tokenContract0.connect(connectedWallet).approve(
    swapRouterAddress,
    approvalAmount
  )

  const params = {
    tokenIn: immutables.token1,
    tokenOut: immutables.token0,
    fee: immutables.fee,
    recipient: WALLET_ADDRESS,
    deadline: Math.floor(Date.now() / 1000) + (60 * 10),
    amountIn: amountIn,
    amountOutMinimum: 0,
    sqrtPriceLimitX96: 0,
  }

  try{
    const transaction = await swapRouterContract.connect(connectedWallet).exactInputSingle(
      params,
      {
        gasLimit: 1000000
      }
    )


    const receipt = await transaction.wait()
    console.log('Transaction Receipt:', receipt)
    
  }catch (error) {
    console.error('Error during swap:', error)
  }
}

module.exports = inrctousdc;