Setting up Graphql Server

This tutorial is based on https://www.apollographql.com/docs/apollo-server/getting-started/

 Install node and npm. If you don't have them installed do the following 1 and 2:

    1. Install homebrew from https://brew.sh/

    2. Install node and npm using homebrew

Create a new folder named graphql-server-example

cd into it.

setup node project using the command: npm init --yes

This creates a package.json file.

Install apollo-server and graphql using: npm install apollo-server graphql

Create an empty index.js file with command touch index.js

Add the following content to the file:

const { ApolloServer, gql } = require('apollo-server');

// A schema is a collection of type definitions (hence "typeDefs")

// that together define the "shape" of queries that are executed against

// your data.

const typeDefs = gql`

# Comments in GraphQL strings (such as this one) start with the hash (#) symbol.

# This "Book" type defines the queryable fields for every book in our data source.

type Book {

title: String

author: String

}

# The "Query" type is special: it lists all of the available queries that

# clients can execute, along with the return type for each. In this

# case, the "books" query returns an array of zero or more Books (defined above).

type Query {

books: [Book]

}

`;

const books = [

{

title: 'The Awakening',

author: 'Kate Chopin',

},

{

title: 'City of Glass',

author: 'Paul Auster',

},

];

// Resolvers define the technique for fetching the types defined in the

// schema. This resolver retrieves books from the "books" array above.

const resolvers = {

Query: {

books: () => books,

},

};

// The ApolloServer constructor requires two parameters: your schema

// definition and your set of resolvers.

const server = new ApolloServer({ typeDefs, resolvers });

// The `listen` method launches a web server.

server.listen().then(({ url }) => {

console.log(`🚀 Server ready at ${url}`);

});

Now run the server with the command: node index.js

Now the server should be ready. Open the given URL in a browser. 

You can go to https://github.com/sulavtimsina/BasicWorkingGraphqlServer to view the code and README.