functions-samples/stripe

Create Stripe customers and charge them on RTDB write

This sample shows how to create Stripe customers and charge them when the Realtime Database is written to.

Further reading:

• Stripe Node API: https://stripe.com/docs/api/node
• Firebase SDK: https://firebase.google.com/docs/functions

Functions Code

See file functions/index.js for the code.

The dependencies are listed in functions/package.json.

Deploy and test

To test this integration:

• Create a Firebase Project using the Firebase Developer Console
• Enable billing on your project by switching to the Blaze or Flame plan. See pricing for more details. This is required to be able to do requests to non-Google services.
• Configure this sample to use your project using firebase --use add and select your project.
• Install dependencies locally by running: cd functions; npm install; cd -
• Add your Stripe API Secret Key to firebase config:

  firebase functions:config:set stripe.token=<YOUR STRIPE API KEY>
  

• Optional: change your default currency firebase functions:config:set stripe.currency=GBP
• Deploy your project using firebase deploy
• Test the Stripe integration by:
  • Add a new user account in the Firebase Console, this should create a new Stripe customer record
  • Set a payment method for the customer in the Stripe Console (you'd normally do this in your front-end with a Stripe SDK)
  • Write some amount to the RTDB under /users/{userId}/charges/{pushId}