Simple Apollo server with GraphQL mutation for Stripe

graphql.js

const { ApolloServer, gql } = require("apollo-server-lambda");
const Stripe = require("stripe");

const typeDefs = gql`
  type StripeCustomer {
    stripe_cust_id: String!
  }

  type Mutation {
    createStripeCustomer(name: String!, email: String!): StripeCustomer!
  }
`;

const resolvers = {
  Mutation: {
    createStripeCustomer: async (_parent, args, context) => {
      const stripe = Stripe(context.headers.stripe_api_key);
      const customer = await stripe.customers.create({
        name: args.name,
        email: args.email,
      });

      return { stripe_cust_id: customer.id };
    },
  },
};

const server = new ApolloServer({
  typeDefs,
  resolvers,
  context: ({ event, context }) => ({
    headers: event.headers,
    functionName: context.functionName,
    event,
    context,
  }),
  playground: {
    endpoint: "/dev/graphql",
  },
});