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Srushti Kulkarni
Srushti Kulkarni

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MongoDb: connecting with small apps.

#mongodb #webdev #programming #javascript

Hello, Everyone! Starting with MongoDb!

What is MongoDB:

  • In simple terms its a database where in we can store data!
  • By defination, its a No-Sql database that stores a data in flexible and document-oriented format.
  • Data is stores as JSON-like documnents.
  • It is Scalable means it good for handling very large datasets.
  • Here we can see the how the data store in db:

So let's start with how can you connect with MongoDB:

  • Here yo've to select free one and then just add the cluster name and select the create button.
  • After Creating the cluster you'll get username and password which is important for connection string. -Copy this username , password.

  • Now, Go to Network Access & add IP address just like this & then confirm it.

  • Now Go to Cluster and click on Connect , it will display this page.
  • Select connect to your application.Click on next

  • You'll see connection string which is very important for to connect database, now replace db-password with your password and copy it.

From Here actual setup will start:

  • Write npm init -y (initialize node project)
  • Install mongoose for connection.
    • Mongoose is an ODM (Object Data Modeling) library for MongoDB in Node.js.

  • Mongoose helps by adding a layer of structure and useful features on top of MongoDB.

  • Now make db folder and inside that db folder make db.connect.js and add this code , which allows us to connect with db

  • Make dotenv file where in you can store the connection string!
    (npm install dotenv)

  • Mkae a model folder, Inside it just add file like note.models.js (you can use anything).

  • Here we are creating a dataModel where in we can add the datatypes of data.

  • Take a json Data from Chatgpt and give the name to that file like Notes.json!
  • Remember the fields in json file is same as models.

  • Now Create another file which index.js where in you've to declare seedData fucntion.

  • Make a similar file , only you've to change is data inside the seed function & instead of cars.json file you've to use the notes.json file only!

  • call the SeedData function.

  • Execute node index.js you'll get

So this is the basic proces of connecting and seeding data in MongoDb.

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