app.js

const express = require("express");
const bodyParser = require("body-parser");
const { graphqlHTTP } = require("express-graphql");
const { buildSchema } = require("graphql");
const mongoose = require("mongoose");


const Event = require("./models/event");

const app = express();

const events = [];

app.use(bodyParser.json());

app.use(
  "/graphql",
  graphqlHTTP({
    schema: buildSchema(`
        type Event{
            _id:ID
            title:String!
            description:String!
            price:Float!
            date:String!
        }

        input EventInput{
            title:String!
            description:String!
            price:Float!
            date:String!
        }
        type RootQuery{
            events:[Event!]!

        }

        type RootMutation{
            createEvent(eventInput:EventInput) : Event

        }
       schema{
              query: RootQuery
              mutation: RootMutation
       }
    `),
    rootValue: {
      events: () => {
        return events;
      },
      createEvent: (args) => {
        const event = new Event({
          title: args.eventInput.title,
          description: args.eventInput.description,
          price: +args.eventInput.price,
          date: new Date(args.eventInput.date),
        });
        return event
          .save()
          .then((result) => {
            console.log(result);
            return { ...result._doc };
          })
          .catch((err) => {
            console.log(err);
            throw err;
          });
        return event;
      },
    },
    graphiql: true,
  })
);

mongoose
  .connect(
    `mongodb+srv://${process.env.MONGO_USER}:${process.env.MONGO_PASS}@cluster0.wkvl3.mongodb.net/${process.env.MONGO_DB}?retryWrites=true&w=majority`
  )
  .then(console.log("mongo connected"))
  .catch((err) => console.log(err));

app.listen(3001, () => {
  console.log("server is running in port 3001");
});