seeder.js

const fs = require('fs');
const colors = require('colors');
const Mongoose = require('mongoose');
const dotenv = require('dotenv');

// Parsing .env and getting Environment variable in process object of node
dotenv.config({ path: process.cwd() + '/config/config.env' });

// bootcamp model to create delete document
const Bootcamp = require('./server/models/bootcamps. model');

// use course model to create delete document
const Course = require('./server/models/courses.model');

// use user model to create delete document
const User = require('./server/models/user.model');

// use Reviews model to create delete document
const Review = require('./server/models/reviews.model');

async function connectDB() {
	const conn = await Mongoose.connect(process.env.MONGO_URI, {
		useNewUrlParser: true,
		useCreateIndex: true,
		useFindAndModify: false,
		useUnifiedTopology: true,
	});

	console.log(`Connected To ${conn.connection.host}:${conn.connection.port} `);
}

const bootcamps = JSON.parse(
	fs.readFileSync(`${__dirname}/_data/bootcamps.json`, {
		encoding: 'utf8',
	}),
);

const courses = JSON.parse(
	fs.readFileSync(`${__dirname}/_data/courses.json`, {
		encoding: 'utf8',
	}),
);

const users = JSON.parse(
	fs.readFileSync(`${__dirname}/_data/users.json`, {
		encoding: 'utf8',
	}),
);

const reviews = JSON.parse(
	fs.readFileSync(`${__dirname}/_data/reviews.json`, {
		encoding: 'utf8',
	}),
);

const importData = async () => {
	await User.create(users);
	await Bootcamp.create(bootcamps);
	await Course.create(courses);
	await Review.create(reviews);
	console.log(colors.green.inverse('Data added Sucessfully...'));
};

const deleteAllData = async () => {
	await Course.deleteMany();
	await Bootcamp.deleteMany();
	await User.deleteMany();
	await Review.deleteMany();
	console.log(colors.red.inverse('Data Deleted Sucessfully...'));
	Mongoose.connection.close(() => {
		console.log('Mongoose default connection is disconnected');
	});
};

connectDB();
// console.log(process.argv);
if (process.argv[2] === '-i') importData();
if (process.argv[2] === '-d') deleteAllData();