@walletconnect/sign-client

Initialize Client

This code demonstrates how to initialize the WalletConnect SignClient with a project ID and relay URL. This is the first step to start using the WalletConnect functionalities.

const { SignClient } = require('@walletconnect/sign-client');

async function initClient() {
  const client = await SignClient.init({
    projectId: 'your_project_id',
    relayUrl: 'wss://relay.walletconnect.org'
  });
  console.log('Client initialized:', client);
}

initClient();

Create Session

This code demonstrates how to create a new session with the WalletConnect client. It specifies the required namespaces, methods, chains, and events, and then waits for the session to be approved.

async function createSession(client) {
  const { uri, approval } = await client.connect({
    requiredNamespaces: {
      eip155: {
        methods: ['eth_sendTransaction', 'personal_sign'],
        chains: ['eip155:1'],
        events: ['chainChanged', 'accountsChanged']
      }
    }
  });
  console.log('Session URI:', uri);
  const session = await approval();
  console.log('Session approved:', session);
}

createSession(client);

Sign Message

This code demonstrates how to sign a message using the WalletConnect client. It sends a request to sign a message and logs the signed message.

async function signMessage(client, session) {
  const message = 'Hello, WalletConnect!';
  const result = await client.request({
    topic: session.topic,
    chainId: 'eip155:1',
    request: {
      method: 'personal_sign',
      params: [message, session.accounts[0]]
    }
  });
  console.log('Signed message:', result);
}

signMessage(client, session);

Send Transaction

This code demonstrates how to send a transaction using the WalletConnect client. It constructs a transaction object and sends it, then logs the result.

async function sendTransaction(client, session) {
  const tx = {
    from: session.accounts[0],
    to: '0xRecipientAddress',
    data: '0x',
    value: '0x0',
    gas: '0x5208'
  };
  const result = await client.request({
    topic: session.topic,
    chainId: 'eip155:1',
    request: {
      method: 'eth_sendTransaction',
      params: [tx]
    }
  });
  console.log('Transaction result:', result);
}

sendTransaction(client, session);