feat: Add createBillingPortalSession (#8)

* feat: Add route, function to create a Stripe Billing Portal Session

* docs: Add createBillingPortalSession example

README.md

@@ -80,6 +80,19 @@ const paymentIntent = await updatePaymentIntent('pi_id', {
 })
 ```
 
+### Billing Portal Sessions
+
+#### Create
+
+```js
+import { createBillingPortalSession } from 'next-stripe/client'
+
+const session = await createBillingPortalSession({
+  customer: 'cus_id',
+  return_url: window.location.href
+})
+```
+
 ## Acknowledgements
 
 - A lot of the patterns in this library were inspred by [NextAuth](https://github.com/nextauthjs/next-auth).

src/client/index.js

@@ -8,6 +8,13 @@ async function confirmPaymentIntent(id, body) {
   })
 }
 
+async function createBillingPortalSession(body) {
+  return await fetcher({
+    body,
+    method: 'POST',
+    url: `/api/stripe/create/billing-portal-session`
+  })
+}
 async function createCheckoutSession(body) {
   return await fetcher({
     body,
@@ -33,6 +40,7 @@ async function updatePaymentIntent(id, body) {
 }
 
 export default {
+  createBillingPortalSession,
   createCheckoutSession,
   createPaymentIntent,
   updatePaymentIntent

src/server/index.js

@@ -15,6 +15,8 @@ async function NextStripeHandler(req, res, options) {
     }
   } else if (method === 'create') {
     switch (type) {
+      case 'billing-portal-session':
+        return routes.createBillingPortalSession(req, res, options)
       case 'checkout-session':
         return routes.createCheckoutSession(req, res, options)
       case 'payment-intent':

src/server/routes/create/billing-portal-session.js

@@ -0,0 +1,13 @@
+import Stripe from 'stripe'
+
+export default async function createBillingPortalSession(req, res, options) {
+  try {
+    const stripe = new Stripe(options.secret_key)
+
+    const session = await stripe.billingPortal.sessions.create(req.body)
+
+    res.status(201).json(session)
+  } catch ({ statusCode, raw: { message } }) {
+    res.status(statusCode).json({ message, status: statusCode })
+  }
+}

src/server/routes/index.js

@@ -1,6 +1,7 @@
 // Confirm
 export { default as confirmPaymentIntent } from './confirm/payment-intent'
 // Create
+export { default as createBillingPortalSession } from './create/billing-portal-session'
 export { default as createCheckoutSession } from './create/checkout-session'
 export { default as createPaymentIntent } from './create/payment-intent'
 // Update