How to fix the 'no such customer' error in Stripe

1require('dotenv').config();
2const stripe = require('stripe')(process.env.STRIPE_SECRET_KEY);
3
4const isTestMode = process.env.STRIPE_SECRET_KEY.startsWith('sk_test_');
5console.log(`Running in ${isTestMode ? 'TEST' : 'LIVE'} mode`);
6
7async function safeGetCustomer(customerId) {
8  if (!customerId || !customerId.startsWith('cus_')) {
9    throw new Error(`Invalid customer ID format: ${customerId}`);
10  }
11
12  try {
13    const customer = await stripe.customers.retrieve(customerId);
14    if (customer.deleted) {
15      throw new Error(`Customer ${customerId} has been deleted`);
16    }
17    return customer;
18  } catch (err) {
19    if (err.code === 'resource_missing') {
20      throw new Error(
21        `Customer ${customerId} not found in ${isTestMode ? 'test' : 'live'} mode. ` +
22        'Verify the customer exists in this environment.'
23      );
24    }
25    throw err;
26  }
27}
28
29async function createPaymentForCustomer(customerId, amount, currency) {
30  const customer = await safeGetCustomer(customerId);
31  console.log(`Creating payment for ${customer.email}`);
32
33  const paymentIntent = await stripe.paymentIntents.create({
34    amount,
35    currency: currency || 'usd',
36    customer: customerId,
37    automatic_payment_methods: { enabled: true },
38  });
39
40  return paymentIntent;
41}
42
43module.exports = { safeGetCustomer, createPaymentForCustomer };