import { EvmPay } from '@evmpay/sdk';

const client = new EvmPay({
  apiKey: 'mk_your_api_key',
  baseURL: 'https://pay.example.com',
});

const payment = await client.payments.create({
  tradeNo:  'ORDER-001',
  userId:   1001,
  chain:    'bsc',
  token:    'usdt',
  amountUsd: 99.99,
});

// Real-time WebSocket tracking
const ws = client.payments.subscribe(
  payment.id, payment.wsToken
);
ws.on('completed', (d) => {
  console.log('Paid!', d.tx_hash);
});