seeder.js

const fs = require("fs");
const mongoose = require("mongoose");
const dotenv = require("dotenv");
require("colors");

//Load env vars *******************************************************
// dotenv.config({path: "./config/config.env"});
dotenv.config();

//Load models *********************************************************
const Bootcamp = require("./models/BootcampModel");
const Course = require("./models/CourseModel");
const User = require("./models/UserModel");
const Review = require("./models/ReviewModel");

//Connect to DB *******************************************************
// const optionDB = {
//     useNewUrlParser: true,
//     useCreateIndex: true,
//     useFindAndModify: false,
//     useUnifiedTopology: true
// };

mongoose.connect(process.env.MONGO_URI).then(() => {
  console.log(`Connected MongoDB In Seeder...`.green.inverse);
});

//Read JSON files ******************************************************
const bootcamps = JSON.parse(
  fs.readFileSync(`${__dirname}/_data/bootcamps.json`, "utf-8")
);
const courses = JSON.parse(
  fs.readFileSync(`${__dirname}/_data/courses.json`, "utf-8")
);
const users = JSON.parse(
  fs.readFileSync(`${__dirname}/_data/users.json`, "utf-8")
);
const reviews = JSON.parse(
  fs.readFileSync(`${__dirname}/_data/reviews.json`, "utf-8")
);

//Import into DB *******************************************************
const importData = async () => {
  try {
    await Bootcamp.create(bootcamps, { aggregateErrors: true });
    await Course.create(courses, { aggregateErrors: true });
    await User.create(users, { aggregateErrors: true });
    await Review.create(reviews, { aggregateErrors: true });

    console.log("Data Imported.....".green.bold);
    process.exit();
  } catch (errors) {
    console.log(errors);
  }
};

//Delete Data from DB ****************************************************
const deleteData = async () => {
  try {
    await Bootcamp.deleteMany();
    await Course.deleteMany();
    await User.deleteMany();
    await Review.deleteMany();

    console.log("Data Destroyed.....".red.bold);
    process.exit();
  } catch (errors) {
    console.log(errors);
  }
};

//node seeder.js *********************************************************
if (process.argv[2] === "-i") {
  importData().then(() => {
    console.log(`Data Import Successfully`.green.bold);
  });
} else if (process.argv[2] === "-d") {
  deleteData().then(() => {
    console.log(`Data Remove DONE`.red.bold);
  });
}