Sonic and Sonic Blaze testnet configuration for Hardhat/Foundry

foundry.toml

[rpc_endpoints]
mainnet = "https://rpc.soniclabs.com/"
testnet = "https://rpc.blaze.soniclabs.com"

[etherscan]
mainnet = { chain = 146,   key = "...sonicscan key...", url = "https://api.sonicscan.org/api" }
testnet = { chain = 57054, key = "...sonicscan key...", url = "https://api-testnet.sonicscan.org/api" }

hardhat.config.js

import { HardhatUserConfig } from "hardhat/config";
import "@nomicfoundation/hardhat-toolbox";
import * as dotenv from "dotenv";

dotenv.config();

const config: HardhatUserConfig = {
  solidity: {
    version: "0.8.27",
    settings: {
      evmVersion: "cancun",
      optimizer: {
        enabled: true,
        runs: 200,
      },
    },
  },
  networks: {
    sonic: {
      url: "https://rpc.soniclabs.com/",
      accounts: [process.env.PRIVATE_KEY!!],
      //ledgerAccounts: [process.env.LEDGER_ADDR],
    },
    blaze: {
      url: "https://rpc.blaze.soniclabs.com",
      accounts: [process.env.PRIVATE_KEY!!],
      //ledgerAccounts: [process.env.LEDGER_ADDR],
    },
  },
  etherscan: {
    apiKey: {
      mainnet: process.env.ETHERSCAN_API_KEY!!,
      sonic: process.env.SONICSCAN_API_KEY!!,
      sepolia: process.env.ETHERSCAN_API_KEY!!,
      blaze: process.env.SONICSCAN_API_KEY!!,
    },
    customChains: [
      {
        network: "sonic",
        chainId: 146,
        urls: {
          apiURL: "https://api.sonicscan.org/api",
          browserURL: "https://sonicscan.org/"
        }
      },
      {
        network: "blaze",
        chainId: 57054,
        urls: {
          apiURL: "https://api-testnet.sonicscan.org/api",
          browserURL: "https://testnet.sonicscan.org/"
        }
      }
    ],
  },
  ignition: {
    requiredConfirmations: 3, // sufficient for testing
  },
};

export default config;