Insomnia+GraphQL - server.js

server.js

const users = [
  {
    id: 1,
    name: "Francis",
    email: "franny@ha.com",
    addresses: [
      {
        street: "1644 Melrose Place",
        city: "Los Angeles",
        country: "USA",
      },
    ],
  },
  {
    id: 2,
    name: "Janet",
    email: "janet@foo.com",
    addresses: [
      {
        street: "1234 Lincoln Avenue",
        city: "Dallas",
        country: "USA",
      },
    ],
  }
];

const resolvers = {
  Query: {
    getUser: function (_, { id }) {
      return users.find(u => u.id === id)
    },
  },
 Mutation: {
    addUser: (_, { user }) => {
      const id = users.length + 1;
      const newUser = {
        id,
        name: user.name,
        email: user.email,
        addresses: user.addresses,
      };
      users.push(newUser)
      return newUser;
    },
  },
};

const fs = require("fs");
const { makeExecutableSchema } = require("@graphql-tools/schema");

// grab the GraphQL type definitions
let typeDefs = fs.readFileSync("schema.graphql", {
  encoding: "utf8",
  flag: "r",
});

// connect schema with resolvers
const schema = makeExecutableSchema({ typeDefs, resolvers });

const express = require("express");
const { graphqlHTTP } = require("express-graphql");

// make our /graphql endpoint where requests are sent
const app = express();
app.use(
  "/graphql",
  graphqlHTTP({
    schema: schema,
  })
);
app.listen(5000, () => console.log("Express is now live at localhost:5000"));