How to create free mongodb atlas cloud database and use it with mongoose

• Sign in to atlas: https://www.mongodb.com/cloud/atlas
• Choose free deployment option
• Create cluster with your favorite cloud provider. Click create
• Wait few minutes for cluster provisioning
• While on Database deployments screen, click on "Browse data".
• On the next screen click on "Add my own data"
• Choose Database name and Collection name. For example "my_db" for Database name and "products" for Collection name. Click "Create".
• On the left pane (sidebar), click on "Database Access". Click on "Add new database user". Choose username and password. Click "Add user".
• On the left pane (sidebar), click on "Network Access". Click on "Add IP Address" and add to the "Access List Entry" the following ip: 8.8.8.8
• Repeat the same with another ip: 0.0.0.0/0
• Repeat the same, but choose "ADD CURRENT IP ADDRESS"
• On the left pane (sidebar), click on "Databases", then click on "Connect". Choose "Connect your application". Choose DRIVER node.js, choose VERSION 4.0 or later.

Copy connection URI string and replace password and database name:#

Before:

mongodb+srv://your_username:<password>@cluster0.fwmwb.mongodb.net/myFirstDatabase?retryWrites=true&w=majority

After:

mongodb+srv://your_username:somepassword@cluster0.fwmwb.mongodb.net/my_db?retryWrites=true&w=majority

Copy URI string to your .env file (Remember to add .env file to .gitignore)#

MONGODB_URI=mongodb+srv://your_username:somepassword@cluster0.fwmwb.mongodb.net/my_db?retryWrites=true&w=majority

Use URI string for mongodb connection.#

mongoose example:

import * as mongoose from 'mongoose'
import { blueBright, redBright, green } from 'chalk'

const mongodbURI = process.env.MONGODB_URI
const dbName = process.env.MONGODB_NAME

const connectOptions = {
  autoIndex: false,
}

const connectDB = async () => {
  try {
    await mongoose.connect(
      mongodbURI,
      { ...connectOptions, dbName },
      (error) => {
        if (error) {
          console.log(redBright(error))
        }
      }
    )
    console.log(blueBright('🐣 mongodb database started'))
    console.log(green(`🙉 dbURL `, mongodbURI))
  } catch (error) {
    console.log(error)
  }
}