GraphQL.js All In One

https://graphql.org/

js

https://graphql.org/code/

Server

https://github.com/graphql/graphql-js

https://github.com/apollographql/apollo-server

Client

https://github.com/apollographql/apollo-client

https://github.com/facebook/relay

Tools

Generate code from your GraphQL schema and operations with a simple CLI

https://the-guild.dev/graphql/codegen

demos

$ npm install express express-graphql graphql --save

var express = require('express');
var { graphqlHTTP } = require('express-graphql');
var { buildSchema } = require('graphql');

// Construct a schema, using GraphQL schema language
var schema = buildSchema(`
  type Query {
    hello: String
  }
`);

// The root provides a resolver function for each API endpoint
var root = {
  hello: () => {
    return 'Hello world!';
  },
};

var app = express();
app.use('/graphql', graphqlHTTP({
  schema: schema,
  rootValue: root,
  graphiql: true,
}));
app.listen(4000);
console.log('Running a GraphQL API server at http://localhost:4000/graphql');

https://graphql.org/graphql-js/

https://graphql.org/graphql-js/running-an-express-graphql-server/