Backend - CRUD + Image Upload (ImageKit)

Live PREVIEW: https://posts-website.onrender.com/

This backend is built using Node.js, Express, MongoDB, and integrates ImageKit for image uploads. It is connected to a React + Tailwind CSS frontend.

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📁 Folder Structure

Backend/
│
├── public/
│   ├── db_CRUD.js        # CRUD operations using MongoDB (notes model)
│   ├── REST_API.js       # REST API using local array (notes)
│
├── src/
│   ├── config/
│   │   └── env.js        # Environment configuration (dotenv setup)
│   │
│   ├── db/
│   │   └── db.js         # MongoDB connection
│   │
│   ├── models/
│   │   ├── note.model.js # Note schema 
│   │   └── post.model.js # Post schema 
│   │
│   ├── services/
│   │   └── storage.service.js  # ImageKit integration (image upload)
│   │
│   ├── controller/
│   ├── middleware/
│   ├── routes/
│   
│   └── app.js           # Post CRUD + routes connected to frontend
│
├── .env                 # Environment variables
├── server.js            # Entry point (server start + DB connection)
├── package.json
└── README.md

📁 Simple Analogy

• db - Connects your application to the database
• models - Defines data structure (schemas, models, relationships)
• services - Reusable helper functions and external integrations
• controller - Handles requests and sends responses
• middleware - Runs before controllers (auth, validation, logging, errors)
• routes - Defines API endpoints and maps them to controllers

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📌 Notes

• public/ folder contains reference files only

  • db_CRUD.js → MongoDB CRUD examples (notes)
  • REST_API.js → Local array-based API examples

• storage.service.js handles:

  • Uploading images to ImageKit
  • Converting buffer → base64

• app.js:

  • Contains Post CRUD operations
  • Handles routes used by frontend

• .env.text_sample provides a sample environment configuration.

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🚀 Setup Instructions

1. Initialize project

npm init -y

2. Install dependencies

npm i express mongoose dotenv cors multer @imagekit/nodejs jsonwebtoken cookie-parser bcryptjs express-validator

3. Run server

npx nodemon server.js

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📎 Frontend

• Built with React + Tailwind CSS
• Connected to backend APIs for post creation and display

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📂 API Endpoints

Method	Endpoint	Description
POST	/api/user/authentication/register	Register a new user
POST	/api/user/authentication/login	Login an existing user
GET	/api/posts	Get all posts
GET	/api/posts/my-posts	Get posts for logged-in user
POST	/api/posts/create-post	Create a new post
DELETE	/api/posts/delete-post/:id	Delete a post