mongo.js

const mongoose = require('mongoose')

if (process.argv.length<3) {
  console.log('give password as argument')
  process.exit(1)
}

const password = process.argv[2]

const mongoUrl =
  `mongodb+srv://part3:${password}@cluster0.2mcuqe5.mongodb.net/blogApp?retryWrites=true&w=majority`

mongoose.connect(mongoUrl)

const blogSchema = new mongoose.Schema({
    title: String,
    author: String,
    url: String,
    likes: Number
})

const Blog = mongoose.model('Blog', blogSchema)

const blog = new Blog({
    title: "Summer vacation",
    author: "Rosa Sparks",
    url: "www.myblog.blogspot.com",
    likes: 331
})

blog.save().then(result => {
  console.log('blog saved!')
  mongoose.connection.close()
})