@purposity/stripe-graphql-js

@nhost/stripe-graphql-js

Stripe GraphQL API

This package creates a Stripe GraphQL API.

query {
  stripe {
    customer(id: "cus_xxx" {
      id
      name
      invoices {
        data {
          id
          created
          paid
          hostedInvoiceUrl
        }
      }
    }
  }
}

You can also add the Stripe GraphQL API as a Hasura Remote Schema and connect data from your database and Stripe. This allows you to request data from your database and Stripe in a single GraphQL query:

query {
  users {
    # User in your database
    id
    displayName
    userData {
      stripeCustomerId # Customer's Stripe Customer Id
      stripeCustomer {
        # Data from Stripe
        id
        name
        paymentMethods {
          id
          card {
            brand
            last4
          }
        }
      }
    }
  }
}

Install

npm install @nhost/stripe-graphql-js

Quick Start

Serverless Function Setup

Create a new Serverless Function functions/graphql/stripe.ts:

import { createStripeGraphQLServer } from '@nhost/stripe-graphql-js'

const server = createStripeGraphQLServer()

export default server

You can run the Stripe GraphQL API in any JS environment because it's built using GraphQL Yoga.

Stripe Secret Key

Add STRIPE_SECRET_KEY as an environment variable. If you're using Nhost, add STRIPE_SECRET_KEY to .env.development like this:

STRIPE_SECRET_KEY=sk_test_xxx

Learn more about Stripe API keys.

Start Nhost

nhost up

Learn more about the Nhost CLI.

Test

Test the Stripe GraphQL API in the browser:

http://localhost:1337/v1/functions/graphql/stripe

Remote Schema

Add the Stripe GraphQL API as a Remote Schema in Hasura.

URL

{{NHOST_BACKEND_URL}}/v1/functions/graphql/stripe

Headers

x-nhost-webhook-secret: NHOST_WEBHOOK_SECRET (from env var)

Permissions

Here's a minimal example without any custom permissions. Only requests using the x-hasura-admin-secret header will work:

const server = createStripeGraphQLServer()

For more granular permissions, you can pass an isAllowed function to the createStripeGraphQLServer. The isAllowed function takes a stripeCustomerId and context as parameters and runs every time the GraphQL server makes a request to Stripe to get or modify data for a specific Stripe customer.

Here is an example of an isAllowed function:

const isAllowed = (stripeCustomerId: string, context: Context) => {
  const { isAdmin, userClaims } = context

  // allow requests if it has a valid `x-hasura-admin-secret`
  if (isAdmin) {
    return true
  }

  // get user id
  const userId = userClaims['x-hasura-user-id']

  // check if user is signed in
  if (!userId) {
    return false;
  }

  // get more user information from the database
  const { user } = await gqlSDK.getUser({
    id: userId,
  });

  if (!user) {
    return false;
  }

  // check if the user is part of a workspace with the `stripeCustomerId`
  return user.workspaceMembers
    .some((workspaceMember) => {
      return workspaceMember.workspace.stripeCustomerId === stripeCustomerId;
    });
}

Context

The context object contains:

• userClaims - verified JWT claims from the user's access token.
• isAdmin - true if the request was made using a valid x-hasura-admin-secret header.
• request - Fetch API Request object that represents the incoming HTTP request in platform-independent way. It can be useful for accessing headers to authenticate a user
• query - the DocumentNode that was parsed from the GraphQL query string
• operationName - the operation name selected from the incoming query
• variables - the variables that were defined in the query
• extensions - the extensions that were received from the client

Read more about the default context from GraphQL Yoga.

Development

Install dependencies:

pnpm install

Start the development server:

pnpm dev

Include the correct admin secret header for admin access

{
  "x-hasura-admin-secret":"<secret value matching your NHOST_ADMIN_SECRET environment variable>"
}

The GraphQL Server will reload every time the code changes.

Open GraphiQL:

http://0.0.0.0:4000/graphql