How to collect billing details in Stripe Checkout

1const express = require('express');
2const stripe = require('stripe')(process.env.STRIPE_SECRET_KEY);
3
4const app = express();
5app.use(express.static('public'));
6app.use(express.json());
7
8app.post('/create-checkout-session', async (req, res) => {
9  try {
10    const session = await stripe.checkout.sessions.create({
11      mode: 'payment',
12      billing_address_collection: 'required',
13      shipping_address_collection: {
14        allowed_countries: ['US', 'CA', 'GB', 'AU', 'DE', 'FR'],
15      },
16      custom_fields: [
17        {
18          key: 'company_name',
19          label: { type: 'custom', custom: 'Company Name' },
20          type: 'text',
21          optional: true,
22        },
23        {
24          key: 'order_notes',
25          label: { type: 'custom', custom: 'Order Notes' },
26          type: 'text',
27          optional: true,
28        },
29      ],
30      line_items: [
31        {
32          price_data: {
33            currency: 'usd',
34            product_data: { name: 'Premium Widget' },
35            unit_amount: 5000,
36          },
37          quantity: 1,
38        },
39      ],
40      success_url: `${req.headers.origin}/success?session_id={CHECKOUT_SESSION_ID}`,
41      cancel_url: `${req.headers.origin}/cancel`,
42    });
43
44    res.json({ url: session.url });
45  } catch (err) {
46    res.status(500).json({ error: err.message });
47  }
48});
49
50app.get('/api/order-details', async (req, res) => {
51  try {
52    const session = await stripe.checkout.sessions.retrieve(req.query.session_id);
53    res.json({
54      email: session.customer_details?.email,
55      name: session.customer_details?.name,
56      billing_address: session.customer_details?.address,
57      shipping: session.shipping_details,
58      custom_fields: session.custom_fields,
59      amount_total: session.amount_total,
60      payment_status: session.payment_status,
61    });
62  } catch (err) {
63    res.status(400).json({ error: 'Invalid session' });
64  }
65});
66
67app.listen(4000, () => console.log('Server on port 4000'));