@walletconnect/core

Initialize WalletConnect

This code initializes a WalletConnect connector with a specified bridge server and QR code modal. The connector is the main interface for establishing a connection between a dApp and a wallet.

const WalletConnect = require('@walletconnect/core');
const connector = new WalletConnect({
  bridge: 'https://bridge.walletconnect.org',
  qrcodeModal: QRCodeModal,
});

Create Session

This code creates a new WalletConnect session and generates a URI that can be displayed as a QR code. The QR code allows users to scan and connect their wallet to the dApp.

connector.createSession().then(() => {
  const uri = connector.uri;
  QRCodeModal.open(uri, () => {
    console.log('QR Code Modal closed');
  });
});

Send Transaction

This code listens for a successful connection event and then sends a transaction from the connected wallet. The transaction details such as recipient address, amount, and gas limit are specified in the `tx` object.

connector.on('connect', (error, payload) => {
  if (error) {
    throw error;
  }
  const { accounts } = payload.params[0];
  const tx = {
    from: accounts[0],
    to: '0xRecipientAddress',
    value: '0xAmountInWei',
    gas: '0xGasLimit',
  };
  connector.sendTransaction(tx).then((result) => {
    console.log('Transaction sent:', result);
  }).catch((error) => {
    console.error('Transaction error:', error);
  });
});