mongo.js

const mongoose = require('mongoose')

const password = process.argv[2]
const name = process.argv[3]
const number = process.argv[4]
const url = `mongodb+srv://fullstack:${password}@cluster0.brgzr.mongodb.net/phonebook?retryWrites=true&w=majority`
mongoose.connect(url, {useNewUrlParser: true, useUnifiedTopology: true})


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

const Person = mongoose.model('Person', personSchema)


if (process.argv.length === 5) {

    const person = new Person({
        name: name, number: number
    })

    person.save().then((result) => {
        console.log(`added ${name} number ${number} to phonebook`)
        mongoose.connection.close()
    })
} else {
    Person.find({}).then(result => {
        result.forEach(person => console.log(person.name, person.number))
        mongoose.connection.close()
    })
}