traverse-apollo-server-micro

---

title: Micro description: Setting up Apollo Server with Micro

This is the Micro integration for the Apollo community GraphQL Server. Read the docs. Read the CHANGELOG.

Basic GraphQL Microservice

This example demonstrates how to setup a simple microservice, using Micro, that handles incoming GraphQL requests via the default /graphql endpoint.

1. Package installation.

npm install --save micro apollo-server-micro@rc graphql

1. index.js

const { ApolloServer, gql } = require('apollo-server-micro');
 
const typeDefs = gql`
  type Query {
    sayHello: String
  }
`;
 
const resolvers = {
  Query: {
    sayHello(parent, args, context) {
      return 'Hello World!';
    },
  },
};
 
const apolloServer = new ApolloServer({ typeDefs, resolvers });
module.exports = apolloServer.createHandler();

1. package.json

{
  "main": "index.js",
  "scripts": {
    "start": "micro"
  }
}

1. After an npm start, access http://localhost:3000/graphql in your browser to run queries using graphql-playground, or send GraphQL requests directly to the same URL.

CORS Example

This example demonstrates how to setup a simple Micro + CORS + GraphQL microservice, using micro-cors:

1. Package installation.

npm install --save micro micro-cors apollo-server-micro@rc graphql

1. index.js

const cors = require('micro-cors')();
const { ApolloServer, gql } = require('apollo-server-micro');
 
const typeDefs = gql`
  type Query {
    sayHello: String
  }
`;
 
const resolvers = {
  Query: {
    sayHello(parent, args, context) {
      return 'Hello World!';
    },
  },
};
 
const apolloServer = new ApolloServer({ typeDefs, resolvers });
module.exports = cors(apolloServer.createHandler());

1. package.json

{
  "main": "index.js",
  "scripts": {
    "start": "micro"
  }
}

1. After an npm start, access http://localhost:3000/graphql in your browser to run queries using graphql-playground, or send GraphQL requests directly to the same URL.

Custom GraphQL Path Example

This example shows how to setup a simple Micro + GraphQL microservice, that uses a custom GraphQL endpoint path:

1. Package installation.

npm install --save micro apollo-server-micro@rc graphql

1. index.js

const { ApolloServer, gql } = require('apollo-server-micro');
 
const typeDefs = gql`
  type Query {
    sayHello: String
  }
`;
 
const resolvers = {
  Query: {
    sayHello(parent, args, context) {
      return 'Hello World!';
    },
  },
};
 
const apolloServer = new ApolloServer({ typeDefs, resolvers });
module.exports = apolloServer.createHandler({ path: '/data' });

1. package.json

{
  "main": "index.js",
  "scripts": {
    "start": "micro"
  }
}

1. After an npm start, access http://localhost:3000/graphql in your browser to run queries using graphql-playground, or send GraphQL requests directly to the same URL.

Fully Custom Routing Example

This example demonstrates how to setup a simple Micro + GraphQL microservice, that uses micro-router for fully custom routing:

1. Package installation.

npm install --save micro microrouter apollo-server-micro@rc graphql

1. index.js

const { router, get, post, options } = require('microrouter');
const { ApolloServer, gql } = require('apollo-server-micro');
 
const typeDefs = gql`
  type Query {
    sayHello: String
  }
`;
 
const resolvers = {
  Query: {
    sayHello(parent, args, context) {
      return 'Hello World!';
    },
  },
};
 
const apolloServer = new ApolloServer({ typeDefs, resolvers });
const graphqlPath = '/data';
const graphqlHandler = apolloServer.createHandler({ path: graphqlPath });
module.exports = router(
  get('/', (req, res) => 'Welcome!'),
  post(graphqlPath, graphqlHandler),
  get(graphqlPath, graphqlHandler),
);

1. package.json

{
  "main": "index.js",
  "scripts": {
    "start": "micro"
  }
}

1. After an npm start, access http://localhost:3000/graphql in your browser to run queries using graphql-playground, or send GraphQL requests directly to the same URL.