Node Configuration

import { LocalNodeManager } from '@coinbase/onchaintestkit'

const node = new LocalNodeManager({
    chainId: 84532,
    port: 8545,
    blockTime: 1,
})

interface NodeConfig {
    port?: number;
    portRange?: [number, number];
    chainId?: number;
    mnemonic?: string;
    forkUrl?: string;
    forkBlockNumber?: bigint;
    forkRetryInterval?: number;
    defaultBalance?: bigint;
    totalAccounts?: number;
    blockTime?: number;
    blockGasLimit?: bigint;
    noMining?: boolean;
    hardfork?: "london" | "berlin" | "cancun";
}

const node = new LocalNodeManager({
    chainId: 31337,
    defaultBalance: parseEther("1000"),
    totalAccounts: 5,
})

const node = new LocalNodeManager({
    chainId: 1,
    forkUrl: process.env.ETH_MAINNET_RPC,
    forkBlockNumber: 18500000n,
    hardfork: "cancun",
})

const node = new LocalNodeManager({
    chainId: baseSepolia.id,
    forkUrl: process.env.BASE_SEPOLIA_RPC,
    forkBlockNumber: BigInt(process.env.FORK_BLOCK || "0"),
    mnemonic: process.env.TEST_MNEMONIC,
})

const node = new LocalNodeManager({
    noMining: true,
    blockGasLimit: 30_000_000n,
})

await node.start()

// Manually mine blocks when needed
await node.mine(1)

const node = new LocalNodeManager({
    port: 8545, // Always use port 8545
    chainId: 31337,
})

const node = new LocalNodeManager({
    portRange: [20000, 30000], // Use ports 20000-30000
    chainId: 31337,
})

# .env.test
E2E_TEST_FORK_URL=https://mainnet.base.org
E2E_TEST_FORK_BLOCK_NUMBER=18500000
E2E_TEST_SEED_PHRASE="test test test test test test test test test test test junk"

const node = new LocalNodeManager({
    chainId: baseSepolia.id,
    forkUrl: process.env.E2E_TEST_FORK_URL,
    forkBlockNumber: BigInt(process.env.E2E_TEST_FORK_BLOCK_NUMBER ?? "0"),
    mnemonic: process.env.E2E_TEST_SEED_PHRASE,
})