GraphQL server in 3 min – pepa.holla.cz

mkdir myserver
cd myserver
npm init -y
npm i -S apollo-server

vim index.js

index.js

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

const typeDefs = gql`
	type Data {
		name: String
		loc: String
	}

    type Query {
        random: Float!
		pepa: String
		data: Data
	}
`;

const data = {
	name: "Pepa",
	loc: "Brno"
}

const resolvers = {
    Query: {
		pepa: () => {
			return data.name
		},
		data: () => {
			return data
		},
        random: () => {
            return Math.random();
        },
    }
};

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

server.listen(4000).then(({ url }) => {
    console.log(`🚀 Server ready at ${url}`);
});

save and then

node ./index.js

now open in your browser http://localhost:4000 and insert this object as query

{
  random,
  pepa,
  data{
    name
  }
}

result:

DONE! 🙂