Adding products to a payment with PaymentIntents API

Question

I just finished setting up payments through stripe on PHP using their payment intents API and forgot about having to add the products/items the user has just purchased.

Looking through the API Reference I didn't see anything where I could add items to the payment intent so I could retreive what was purchased later on in the webhook.

Do I need to do my own magic and somehow add the items to the metadata array or is there something that i'm missing here?

Answer 1

PaymentIntents do not track any sort of product that's connected to the purchase (just an amount). In order to link Products to a payment, you'd want to use Invoices which will generate a PaymentIntent as part of the process.

Answer 2

I'm using node.js. Here's what worked for me:

Steps

1. Create customer object
2. Create invoice item
3. Create invoice
4. Finalize invoice (returns a payment intent id but not a secret)
5. Retrieve the payment intent object by id (secret key must be used).

Step #5 response will contain the client_secret value that can be sent to the client for payment capture.

Nodes.js code

const customer = ...
const invoiceItem = await stripe.invoiceItems.create({
  customer: ...
  price_data: { ... }
})
const invoice = await stripe.invoices.create({
  customer: ...
})
const finalInvoice = await stripe.invoices.finalizeInvoice(
  invoice.id
)
const paymentIntent = await stripe.paymentIntents.retrieve(
  finalInvoice.payment_intent
)

res.send({ secret: paymentIntent.client_secret })