mongo.js

const mongoose = require('mongoose')

if (process.argv.length < 3) {
    console.log('Please provide the password as an argument and Person to be added: node mongo.js <password>')
    process.exit(1)
}

const password = process.argv[2]

const url =
    `mongodb+srv://admin:${password}@cluster0.evw5q.mongodb.net/phonebook-app?retryWrites=true&w=majority`

mongoose.connect(url)

const personSchema = new mongoose.Schema({
    name: String,
    number: String,
})

const Person = mongoose.model('Person', personSchema)
if(process.argv.length>4){

const person = new Person({
    name: process.argv[3],
    number: process.argv[4]
})

person.save().then(result => {
    console.log(`added ${process.argv[3]} number ${process.argv[4]} to phonebook`)
    mongoose.connection.close()
})
}
else {
    console.log("Phonebook:")
    Person.find({}).then(result => {
        result.forEach(person => {
            console.log(person.name ,person.number)
        })
        mongoose.connection.close()
    })
}