Uniswap

Uniswap V3 is deployed on the Lens Testnet, allowing developers to create and interact with liquidity pools. Deployed contract addresses can be found here.

Creating a Liquidity Pool

A ready-to-use script for creating Uniswap V3 pools is available here.

Steps to Run the Script

Clone the repository

git clone https://github.com/defispartan/echofi-deploy.gitcd echofi-deploy

Install dependencies

yarn install

Configure the script

Open src/scripts/createUniswapPools.ts

Set the required pool and deployer details at the top of the script.

Deploy the pool

yarn hardhat run src/scripts/createUniswapPools.ts --no-compile

Interacting with pools

Once a pool is deployed, you can interact with it using a library like ethers.js or viem. Common interactions include:

Querying Pool Information

import {ethers} from "ethers";
const provider = new ethers.JsonRpcProvider("<LENS_TESTNET_RPC>");const poolAddress = "<DEPLOYED_POOL_ADDRESS>";const poolContract = new ethers.Contract(  poolAddress,  UNISWAP_V3_POOL_ABI,  provider);
async function getPoolState() {  const slot0 = await poolContract.slot0();  console.log("Current price sqrtX96:", slot0.sqrtPriceX96.toString());}
getPoolState();

Swapping Tokens

const swapRouterAddress = "<UNISWAP_V3_SWAP_ROUTER>";const swapRouterContract = new ethers.Contract(  swapRouterAddress,  SWAP_ROUTER_ABI,  signer);
async function swapTokens() {  const tx = await swapRouterContract.exactInputSingle({    tokenIn: "<TOKEN_IN_ADDRESS>",    tokenOut: "<TOKEN_OUT_ADDRESS>",    fee: 3000,    recipient: signer.address,    deadline: Math.floor(Date.now() / 1000) + 60 * 10,    amountIn: ethers.parseUnits("1", 18),    amountOutMinimum: 0,    sqrtPriceLimitX96: 0,  });  await tx.wait();  console.log("Swap executed successfully");}
swapTokens();

For additional resources on integrating Uniswap V3 contracts, refer to the Uniswap V3 docs.