Banana Cake Pop - Express

You can easily integrate Banana Cake Pop GraphQL IDE with your server app using the @chillicream/bananacakepop-express-middleware package. You can either use a CDN hosted version of the app or a self-hosted version using the dedicated package.

Installation

First, you need to install this package and the required peer dependencies in your project:

Bash

npm install @chillicream/bananacakepop-express-middleware --save-dev
# or
yarn add @chillicream/bananacakepop-express-middleware --dev
# or
pnpm add @chillicream/bananacakepop-express-middleware --save-dev

Note: @chillicream/bananacakepop-graphql-ide is optional and only needed if you prefer to self host the app.

Usage

To use the middleware, simply import it and add it to your Express app.

import express from "express";
import { graphqlHTTP } from "express-graphql";
import { GraphQLObjectType, GraphQLSchema, GraphQLString } from "graphql";

import bcpMiddleware from "@chillicream/bananacakepop-express-middleware";

const schema = new GraphQLSchema({
  query: new GraphQLObjectType({
    name: "Query",
    fields: {
      greeting: {
        type: GraphQLString,
        resolve(_parent, _args) {
          return "Hello, World!";
        },
      },
    },
  }),
});

const app = express();

app.use(
  "/graphql",

  // for `cdn` hosted version
  bcpMiddleware({ mode: "cdn" }),

  // for `self` hosted version
  // bcpMiddleware({ mode: "self" }),

  graphqlHTTP({
    schema,
    graphiql: false,
  })
);

app.listen(3000, () => {
  console.log(`GraphQL on http://localhost:3000/graphql`);
});

You can also use it in the self mode for a self-hosted version:

bcpMiddleware({ mode: "self" }) // for `self` hosted version

Extended configuration

Pin a specific version

To pin a specific version instead of using "latest":

bcpMiddleware({
  mode: "cdn",
  target: { version: "3.0.0" },
});

Use your own infrastructure

To use your own infrastructure:

bcpMiddleware({
  mode: "cdn",
  target: "https://mycompany.com/bcp",
});

Custom options

To pass options supported by Banana Cake Pop GraphQL IDE:

bcpMiddleware({
  mode: "cdn",
  options: {
    title: "BCP",
  },
});

Property	Description	Type
title	The title of the Banana Cake Pop IDE.	`string` (optional)
graphQLDocument	Specifies the GraphQL document (query/mutation/subscription).	`string` (optional)
variables	Specifies the variables used in the GraphQL document.	`Record<string, any>` (optional)
includeCookies	If `true`, includes cookies in the request.	`boolean` (optional)
httpHeaders	Specifies HTTP headers for the request.	`HttpHeaderDictionary` (optional)
endpoint	The GraphQL endpoint.	`string` (optional)
useGet	If `true`, uses GET method for sending the request.	`boolean` (optional)
useBrowserUrlAsEndpoint	If `true`, uses the browser's URL as the GraphQL endpoint.	`boolean`
subscriptionProtocol	Specifies the protocol used for GraphQL subscriptions.	`SubscriptionProtocol` (optional)

Recipes

Below are examples of how to use Banana Cake Pop Express Middleware with different GraphQL server setups.

graphql-http

import express from "express";
import { createHandler } from "graphql-http";
//... rest of the imports

const app = express();
//... rest of the app setup

app.use(
  "/graphql",
  bcpMiddleware({ mode: "cdn" }), // or bcpMiddleware({ mode: "self" }),
  async (req, res) => {
    //... rest of the middleware
  }
);

app.listen(3000, () => {
  console.log(`GraphQL on http://localhost:3000/graphql`);
});

graphql-yoga

import express from "express";
import { createYoga, createSchema } from "graphql-yoga";
//... rest of the imports

const app = express();
//... rest of the app setup

app.use(
  "/graphql",
  bcpMiddleware({ mode: "cdn" }), // or bcpMiddleware({ mode: "self" }),
  graphQLServer
);

app.listen(3000, () => {
  console.log(`GraphQL on http://localhost:3000/graphql`);
});

express-graphql

import express from "express";
import { graphqlHTTP } from "express-graphql";
//... rest of the imports

const app = express();
//... rest of the app setup

app.use(
  "/

graphql",
  bcpMiddleware({ mode: "cdn" }), // or bcpMiddleware({ mode: "self" }),
  graphqlHTTP({
    schema,
    graphiql: false,
  })
);

app.listen(3000, () => {
  console.log(`GraphQL on http://localhost:3000/graphql`);
});

Apollo Server

import { ApolloServer } from "@apollo/server";
//... rest of the imports

const app = express();
//... rest of the app setup

app.use(
  "/graphql",
  bcpMiddleware({ mode: "cdn" }), // or bcpMiddleware({ mode: "self" }),
  cors(),
  bodyParser.json(),
  expressMiddleware(server, {
    context: async ({ req }) => ({ token: req.headers.token }),
  })
);

httpServer.listen({ port: 3000 }, () => {
  console.log(`GraphQL on http://localhost:3000/graphql`);
});

Last updated on 2023-11-21 by Meenakshi Dhanani