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chore(node-quickstart): use base sepolia instead of mainnet #9

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Merged
AngeloAyranji merged 1 commit into from
Feb 24, 2026
Merged

chore(node-quickstart): use base sepolia instead of mainnet #9

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19 changes: 14 additions & 5 deletions examples/node-quickstart/src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@ import 'dotenv/config';
import { Account } from '@jaw.id/core';
import { privateKeyToAccount } from 'viem/accounts';
import { createPublicClient, formatEther, http, parseEther } from 'viem';
import { base } from 'viem/chains';
import { baseSepolia } from 'viem/chains';

// ---------------------------------------------------------------------------
// Configuration
Expand All @@ -11,6 +11,7 @@ import { base } from 'viem/chains';
const JAW_API_KEY = process.env.JAW_API_KEY;
const PRIVATE_KEY = process.env.PRIVATE_KEY as `0x${string}` | undefined;
const RECIPIENT = process.env.RECIPIENT_ADDRESS as `0x${string}` | undefined;
const PAYMASTER_URL = process.env.PAYMASTER_URL;

if (!JAW_API_KEY || !PRIVATE_KEY || !RECIPIENT) {
console.error(
Expand All @@ -20,7 +21,7 @@ if (!JAW_API_KEY || !PRIVATE_KEY || !RECIPIENT) {
process.exit(1);
}

const CHAIN_ID = 8453; // Base mainnet
const CHAIN_ID = 84532; // Base Sepolia

// ---------------------------------------------------------------------------
// Main
Expand All @@ -38,16 +39,21 @@ async function main() {

const signer = privateKeyToAccount(PRIVATE_KEY!);
const account = await Account.fromLocalAccount(
{ chainId: CHAIN_ID, apiKey: JAW_API_KEY! },
{
chainId: CHAIN_ID,
apiKey: JAW_API_KEY!,
...(PAYMASTER_URL ? { paymasterUrl: PAYMASTER_URL } : {}),
},
signer,
);

const client = createPublicClient({ chain: base, transport: http() });
const client = createPublicClient({ chain: baseSepolia, transport: http() });
const balance = await client.getBalance({ address: account.address });

console.log(` address : ${account.address}`);
console.log(` balance : ${formatEther(balance)} ETH`);
console.log(` chain : Base (${CHAIN_ID})\n`);
console.log(` chain : Base Sepolia (${CHAIN_ID})`);
console.log(` paymaster: ${PAYMASTER_URL ? 'enabled' : 'none (account needs ETH)'}\n`);

// ── Step 2: Sign a message ────────────────────────────────────────────────
//
Expand All @@ -67,6 +73,9 @@ async function main() {
//
// sendTransaction submits a single call and waits until it is confirmed on-chain.
// Returns the transaction hash once mined.
//
// The account must either hold ETH for gas, or have PAYMASTER_URL set in .env
// to sponsor fees via a paymaster (Pimlico, Etherspot, etc.).

console.log('Step 3 — Send ETH (single, waits for confirmation)');

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