Uniswap V3 functions implemented: 1.ETH-> DAI ExactInputSingle swap 2.ETH-> DAI -> USDC ExactInput Multi Hop swap

Setup Instructions npm install npx hardhat accounts npx hardhat clean npx hardhat compile

npx hardhat test npx hardhat node node scripts/accounts.js npx hardhat run accounts.js npx hardhat help

$ npm init $ npm add --save-dev hardhat $ npx hardhat init

Get an Alchemy key to run a forked verison of mainnet on your local node

npx hardhat node --fork https://eth-mainnet.alchemyapi.io/v2/<API_KEY>

To targed a specific blcknumber npx hardhat node --fork https://eth-mainnet.alchemyapi.io/v2/<API_KEY> --fork-block-number 16091924

To run all the tests npx hardhat test

To test a specific test file npx hardhat test ./test/test_SwapETH2DAI.js --network localhost

To test a specific "IT" in a selected test file npx hardhat test ./test/test_SwapETH2DAI2USDC.js --grep "Contract Deployed" --network localhost npx hardhat test ./test/test_SwapETH2DAI2USDC.js --grep "USDC amountOut" --network localhost

npx hardhat test ./test/test_FusionToken.js --network localhost

Goerli DAI/ETH POOL https://info.uniswap.org/#/pools/0x60594a405d53811d3bc4766596efd80fd545a270

To deploy your scripts on Goerli or local forked node

npx hardhat run scripts/deploy.js --network goerli OUTPUT> Deploying contracts with the account: 0xC5AE1dd3c4bBC7bD1f7260A4AC1758eb7c38C021 Deployer account 0xC5AE1dd3c4bBC7bD1f7260A4AC1758eb7c38C021 balance is '2.498698766861562921' ETH SimpleSwap address: 0x3CEa950Ae49291836f7a8a656b4Ddd4f003E08dC SwapETH2DAI address: 0x3d680E71a582324441Cde75f6335b9Bb01580cf2

npx hardhat run scripts/deploy.js --network hardhat OUTPUT> Deploying contracts with the account: 0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266 Deployer account 0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266 balance is '10000.0' ETH SimpleSwap address: 0x707531c9999AaeF9232C8FEfBA31FBa4cB78d84a SwapETH2DAI address: 0x2538a10b7fFb1B78c890c870FC152b10be121f04

Verify your contracts on etherscan npm install --save-dev @nomiclabs/hardhat-etherscan require("@nomiclabs/hardhat-etherscan"); npx hardhat verify --network mainnet DEPLOYED_CONTRACT_ADDRESS "Constructor argument 1"

Fusion Token on goerli: npx hardhat verify "0xa28Aae128E9193D659De6d25e4979499c41E9c19" --network goerli Verified contract: https://goerli.etherscan.io/address/0xa28Aae128E9193D659De6d25e4979499c41E9c19#code

DEPLOY SwapContract.sol on Goerli npx hardhat run scripts/deploy.js --network goerli

npx hardhat test ./test/test_SwapContract.js --network localhost --grep "Wrap All ETH" npx hardhat test ./test/test_SwapContract.js --network localhost --grep "Wrap Some ETH" npx hardhat test ./test/test_SwapContract.js --network localhost WETH has different addresses for Mainnet/Goerli Goerli WETH: 0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6 Mainnet WETH: 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2

Goerli DAI: 0xdc31Ee1784292379Fbb2964b3B9C4124D8F89C60 Mainnet DAI: 0x6B175474E89094C44Da98b954EedeAC495271d0F

Goerli npx hardhat run scripts/deploy.js --network goerli npx hardhat verify "0x0cfE6161A5A5B6F9cBff10e5138af79Ba7058ebF" "0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6" "0xdc31Ee1784292379Fbb2964b3B9C4124D8F89C60" "0xE592427A0AEce92De3Edee1F18E0157C05861564" --network goerli https://goerli.etherscan.io/address/0x0cfE6161A5A5B6F9cBff10e5138af79Ba7058ebF#code

Mainnet npx hardhat run scripts/deploy.js --network mainnet npx hardhat verify "" "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2" "0x6B175474E89094C44Da98b954EedeAC495271d0F" "0xE592427A0AEce92De3Edee1F18E0157C05861564" --network goerli

DepositAndWithdraw on Goerli npx hardhat run scripts/2_deploy_DepositAndWithdraw.js --network goerli

Deploying WETH and DepositAndWithdraw contract with the account: 0xC5AE1dd3c4bBC7bD1f7260A4AC1758eb7c38C021 Deployer account 0xC5AE1dd3c4bBC7bD1f7260A4AC1758eb7c38C021 balance is '0.961227081912468166' ETH WETH contract depoloyed at 0x91761E31588ddB57386225055cE2B993Ae07081f

DepositAndWithdraw contract depoloyed at 0x179760bbBA596FED47F88b38bFA717DECee353cb using the 0x91761E31588ddB57386225055cE2B993Ae07081f WETH contract deployed

DepositAndWithdraw

npx hardhat verify "0x179760bbBA596FED47F88b38bFA717DECee353cb" "0x91761E31588ddB57386225055cE2B993Ae07081f" --network goerli

https://goerli.etherscan.io/address/0x179760bbBA596FED47F88b38bFA717DECee353cb#code

WETH: npx hardhat verify "0x91761E31588ddB57386225055cE2B993Ae07081f" --network goerli

https://goerli.etherscan.io/address/0x91761E31588ddB57386225055cE2B993Ae07081f#code

DEPLOLY WETH contract onto Goerli

npx hardhat test ./test/test_WETH.js --network localhost npx hardhat run scripts/deploy.js --network goerli npx hardhat verify "0x5040f2eBc736656a03c971Cfa7dfF005cf2084b7" --network goerli https://goerli.etherscan.io/address/0x5040f2eBc736656a03c971Cfa7dfF005cf2084b7#code

DEPLOY WETH ON MAINNET

Deploying contracts with the account: 0xC5AE1dd3c4bBC7bD1f7260A4AC1758eb7c38C021 Deployer account 0xC5AE1dd3c4bBC7bD1f7260A4AC1758eb7c38C021 balance is '0.037732853772326136' ETH WETH contract depoloyed at 0xd5aCB47829e407aD67BA3A1423e7ce387995D703 npx hardhat verify "0xd5aCB47829e407aD67BA3A1423e7ce387995D703" --network mainnet https://etherscan.io/address/0xd5aCB47829e407aD67BA3A1423e7ce387995D703#code

SWAP DAI TO ETH npx hardhat test ./test/test_SwapToWEth.js --network localhost --grep "Contract Deployed"

Test coverage yarn add solidity-coverage --dev

npx hardhat coverage --testfiles "test/test_SwapContract.js"

npx hardhat coverage --testfiles "test/*.js" -------------------------|----------|----------|----------|----------|----------------| File | % Stmts | % Branch | % Funcs | % Lines |Uncovered Lines | -------------------------|----------|----------|----------|----------|----------------| contracts/ | 77.17 | 46.97 | 70.15 | 79.38 | | DepositAndWithdraw.sol | 86.96 | 50 | 76.92 | 89.29 | 90,95,120 | FusionToken.sol | 100 | 65 | 100 | 100 | | IERC20.sol | 100 | 100 | 100 | 100 | | IWETH.sol | 100 | 100 | 100 | 100 | | SwapContract.sol | 78.57 | 50 | 52.63 | 83.33 |... 221,228,235 | WETH.sol | 45.16 | 22.22 | 52.94 | 44.74 |... 147,148,149 | -------------------------|----------|----------|----------|----------|----------------| All files | 77.17 | 46.97 | 70.15 | 79.38 | | -------------------------|----------|----------|----------|----------|----------------|

Goerli DAI/ION pool create pool transaction https://goerli.etherscan.io/tx/0xa5a63fb9de0a1e28e5d2001b4ffef409029a87a513bd4329ca6ad337fee0faac#eventlog Pool address 0x439b82465cf11b2417daa294C8754F8220039A7A 1 0xa28Aae128E9193D659De6d25e4979499c41E9c19 (ION) -Created by Sandip Nallani 2 0xdc31Ee1784292379Fbb2964b3B9C4124D8F89C60 (DAI) -Not created by me 3. 0x652Aa57D6f51F74605f8D6e78E0c54FE237A22f4 (GDAI) -Created by Sandip Nallani 4. 0x91761E31588ddB57386225055cE2B993Ae07081f (WETH-Test) -Created by Sandip Nallani 5. 0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6 (WETH) mint() (NonFungiblePositionManager) https://goerli.etherscan.io/address/0xC36442b4a4522E871399CD717aBDD847Ab11FE88#writeContract

struct MintParams {
    address token0;
    address token1;
    uint24 fee;
    int24 tickLower;
    int24 tickUpper;
    uint256 amount0Desired;
    uint256 amount1Desired;
    uint256 amount0Min;
    uint256 amount1Min;
    address recipient;
    uint256 deadline;
}



GDAI Goerli DAI Token on Goerli
Deploying GDAI contract with the account: 0xC5AE1dd3c4bBC7bD1f7260A4AC1758eb7c38C021

Deployer account 0xC5AE1dd3c4bBC7bD1f7260A4AC1758eb7c38C021 balance is '0.956202171462879795' ETH dgai contract depoloyed at 0x652Aa57D6f51F74605f8D6e78E0c54FE237A22f4

npx hardhat verify --contract contracts/GDAI.sol:GDAI "0x652Aa57D6f51F74605f8D6e78E0c54FE237A22f4" --network goerli https://goerli.etherscan.io/address/0x652Aa57D6f51F74605f8D6e78E0c54FE237A22f4#code

GDAI /WETH pool created using the NonFungiblePositionManager's 'createAndInitializePoolIfNecessary' Pool address 0x1aC7982148eb00d2AaE341326bbAA3952556C119 MintParams (Mint a new position GDAI/WETH) (0x652Aa57D6f51F74605f8D6e78E0c54FE237A22f4,0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6,3000,-887272,-887272,100,0.01,0,0,0xC36442b4a4522E871399CD717aBDD847Ab11FE88,"")

MintNewPosition on Goerli https://goerli.etherscan.io/address/0xc1Eb23E95f13B356318b642D591BF593b4a418Aa#code

ION/GDAI Pool created 0xC3f197daFB3c14923496ADD63B870Ee1CA20e2e3

ION/WETH Pool created 0x5a29669fE3CbC95Ce6148e051F9dF90d6413F815

ION/DAI pool fee:3000 0x439b82465cf11b2417daa294C8754F8220039A7A

ION/DAI pool fee:500 0x98cfDA0Cc69ED7481c0943D6DAcA2D4e5fD0C774