⚡ VIDEO SHARING PLATFORM (VSP)

A high-performance, scalable backend architecture for video sharing, built with Node.js, Express, and MongoDB Aggregation Pipelines.

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🏗 System Architecture

This project implements a production-grade backend with a focus on scalability and data consistency.

Key Engineering Features

• Complex Aggregations: Uses MongoDB Aggregation Pipelines ($lookup, $unwind, $addFields) for high-performance data joining (e.g., fetching videos with owner details and subscription status in a single query).
• JWT Security: Implements a dual-token architecture (Access Token + Refresh Token) for secure, stateless authentication.
• Cloud-Native Storage: Integrates Cloudinary for scalable video/image storage and optimization.
• Optimized Queries: Uses mongoose-aggregate-paginate-v2 for efficient pagination on heavy datasets.

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🛠 Tech Stack

• Runtime: Node.js (v20+)
• Framework: Express.js
• Database: MongoDB (Mongoose ODM)
• Storage: Cloudinary API
• Auth: JSON Web Tokens (JWT), Bcrypt
• Validation: Mongoose Schema Validation

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🔌 API Endpoints (Snapshot)

Method	Endpoint	Description	Access
POST	/api/v1/users/register	Register a new user with avatar	Public
POST	/api/v1/users/login	Login and receive Access/Refresh tokens	Public
POST	/api/v1/videos/publish	Upload video & thumbnail (Multipart)	Auth
GET	/api/v1/videos	Get all videos with pagination & filters	Public
GET	/api/v1/users/c/:username	Get channel profile & stats	Auth

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💻 Local Setup

1. Clone the repository

git clone [https://github.com/ImAryanPandey/video-sharing-platform.git](https://github.com/ImAryanPandey/video-sharing-platform.git)
cd video-sharing-platform/backend

2. Install Dependencies

npm install

3. Environment Variables Create a .env file in the root:

PORT=8000
MONGODB_URI=mongodb+srv://<your-mongo-url>
CORS_ORIGIN=*
ACCESS_TOKEN_SECRET=your-secret
ACCESS_TOKEN_EXPIRY=1d
REFRESH_TOKEN_SECRET=your-secret
REFRESH_TOKEN_EXPIRY=10d
CLOUDINARY_CLOUD_NAME=...
CLOUDINARY_API_KEY=...
CLOUDINARY_API_SECRET=...

4. Run the Server

npm run dev

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🚀 Future Roadmap

• Video Transcoding (HLS/DASH)
• Real-time Comments (Socket.io)
• Redis Caching for Trending Videos

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_{Built by Aryan Pandey}