0. Project Structure

A proper industry level project structure to begin with

1. To initialize the Project

npm init - By doing npm init we intialize the project in the Current Working Directory, it generates a 'package.json' which contains meta data about the project such as the project's name, version, description, author, and license.

npm init

2. To install necessary packages for further development

dotenv: it stores sensitive data such as your server running port number, database credentials, API keys, etc.
```
npm i dotenv
```
once you installed dotenv make a folder in your root directory .env like this
nodemon: it just refreshes your server on any file change once runed
```
npm i nodemon
```
Now to Setup the nodemon in package.js*.
```
"scripts": {
    "dev": "nodemon -r dotenv/config --experimental-json-modules src/index.js"
 },
```
- nodemon: Runs the application with auto-restart on file changes.
- -r dotenv/config: Loads environment variables from the .env file.
- --experimental-json-modules: Enables experimental support for JSON modules, which is useful if you're using ES modules and need to import JSON files like you can import and export.

Now Start your Server by
```
npm run dev
```

Express: It is a Node.js Framework used used for building web applications and API, by providing routing, middleware, templating and handle HTTP request and responses.
```
npm install express
```
Mongoose: It helps to connect MongoDB with your application
```
npm install mongoose
```

3. Setting the file Structure

backend/
 |- src/
	  |- controllers/ - (API endpoint handlers)
	  |- db/ - (database connection and schema)
	  |- middlewares/ - (request and response middleware functions)
	  |- models/ - (data models and schema definitions)
	  |- utils/ - (utility functions and helpers)
	  |- constant.js - (application-wide constants)
	  |- index.js - (main application entry point)
 |-.env - (environment variables and secrets)
 |-.gitignore - (files and folders to ignore in Git)
 |- package.json - (project metadata and dependencies)
 |- package-lock.json - (dependency tree and version locks)