How to verify PaymentIntent status in Stripe API

1const stripe = require('stripe')(process.env.STRIPE_SECRET_KEY);
2
3const paymentIntent = await stripe.paymentIntents.retrieve('pi_ABC123');
4
5console.log('Status:', paymentIntent.status);
6console.log('Amount:', paymentIntent.amount / 100);
7console.log('Currency:', paymentIntent.currency);

1function handlePaymentStatus(paymentIntent) {
2  switch (paymentIntent.status) {
3    case 'succeeded':
4      // Payment complete — fulfill the order
5      console.log('Payment succeeded! Fulfill order.');
6      break;
7    case 'processing':
8      // Payment is processing — wait for webhook
9      console.log('Payment processing. Will confirm via webhook.');
10      break;
11    case 'requires_action':
12      // 3DS or other action needed — tell frontend
13      console.log('Customer action required (3DS).');
14      break;
15    case 'requires_payment_method':
16      // Payment failed — customer needs to retry
17      console.log('Payment failed. Customer should try another card.');
18      break;
19    case 'canceled':
20      console.log('Payment was canceled.');
21      break;
22    default:
23      console.log('Unexpected status:', paymentIntent.status);
24  }
25}

1app.get('/success', async (req, res) => {
2  const { payment_intent } = req.query;
3
4  if (!payment_intent) {
5    return res.status(400).send('Missing payment_intent parameter');
6  }
7
8  const paymentIntent = await stripe.paymentIntents.retrieve(payment_intent);
9
10  if (paymentIntent.status === 'succeeded') {
11    res.send('Payment confirmed! Thank you for your purchase.');
12  } else {
13    res.send(`Payment status: ${paymentIntent.status}. Please contact support.`);
14  }
15});

1app.post('/webhook', express.raw({ type: 'application/json' }), (req, res) => {
2  const sig = req.headers['stripe-signature'];
3  let event;
4
5  try {
6    event = stripe.webhooks.constructEvent(
7      req.body,
8      sig,
9      process.env.STRIPE_WEBHOOK_SECRET
10    );
11  } catch (err) {
12    return res.status(400).send(`Webhook Error: ${err.message}`);
13  }
14
15  if (event.type === 'payment_intent.succeeded') {
16    const pi = event.data.object;
17    console.log('Confirmed payment:', pi.id, pi.amount / 100);
18    // Fulfill the order here
19  }
20
21  res.json({ received: true });
22});