Create2 factory

create2_precompute/.env.example

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+ALCHEMY_API_KEY=
+ROPSTEN_PRIVATE_KEY=

create2_precompute/.gitignore

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+node_modules
+.env
+
+#Hardhat files
+cache
+artifacts
+dist
+typechain

create2_precompute/.prettierrc

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+{
+  "overrides": [
+    {
+      "files": "*.sol",
+      "options": {
+        "printWidth": 120,
+        "tabWidth": 4,
+        "useTabs": false,
+        "singleQuote": false,
+        "bracketSpacing": false,
+        "explicitTypes": "always",
+        "semi": true
+      }
+    }
+  ]
+}

create2_precompute/contracts/Create2.sol

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+pragma solidity ^0.8.7;
+
+contract Create2Factory {
+    event Deployed(address addr, uint256 salt);
+
+    function getAddress(bytes memory bytecode, uint256 salt) public view returns (address) {
+        bytes32 hash = keccak256(abi.encodePacked(bytes1(0xff), address(this), salt, keccak256(bytecode)));
+        address addr = address(uint160(uint(hash)));
+        return addr;
+    }
+
+    function deploy(bytes memory bytecode, uint salt) public payable returns (address) {
+        address addr;
+        assembly {
+            addr := create2(
+                callvalue(), // wei to send to the created contract
+                add(bytecode, 0x20), // start memory position of the code (it starts after the first 32 bytes)
+                mload(bytecode), // length in bytes of the code. the length is stored on the first 32 bytes
+                salt
+            )
+
+            if iszero(extcodesize(addr)) {
+                revert(0,0)
+            }
+        }
+
+        emit Deployed(addr, salt);
+        return addr;
+    }
+}
+
+contract TestContract {
+    address public owner;
+
+    constructor() {
+        owner = msg.sender;
+    }
+
+    function getBalance() public view returns(uint){
+        return address(this).balance;
+    }
+}

create2_precompute/hardhat.config.ts

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+import { config as dotenvConfig } from "dotenv";
+import "@typechain/hardhat";
+import "@nomiclabs/hardhat-ethers";
+import "@nomiclabs/hardhat-waffle";
+import "@nomiclabs/hardhat-etherscan";
+import "solidity-coverage";
+import "hardhat-gas-reporter";
+import { HardhatUserConfig } from "hardhat/types/config";
+
+dotenvConfig();
+
+const gasPrice = parseInt(process.env.GAS_PRICE || "1000000000");
+
+const config: HardhatUserConfig = {
+  solidity: {
+    compilers: [
+      {
+        version: "0.8.10",
+        settings: {
+          optimizer: {
+            enabled: true,
+            runs: 200,
+          },
+        },
+      },
+    ],
+  },
+  networks: {
+    hardhat: {
+      initialBaseFeePerGas: 0,
+    },
+    rinkeby: {
+      url: process.env.RINKEBY_URL || "",
+      accounts:
+        process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
+      gasPrice,
+    },
+    mainnet: {
+      url: process.env.MAINNET_URL || "",
+      accounts:
+        process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
+      gasPrice,
+    },
+  },
+  gasReporter: {
+    enabled: process.env.REPORT_GAS !== undefined,
+    currency: "USD",
+    gasPrice: 120,
+    coinmarketcap: process.env.COINMARKETCAP_API_KEY,
+  },
+  etherscan: {
+    apiKey: process.env.ETHERSCAN_API_KEY,
+  },
+};
+
+export default config;