YouTube Complete Backend

This project is a complete backend solution replicating the core features of YouTube. It provides APIs for managing users, videos, comments, subscriptions, playlists, and more.

Table of Contents

• Overview
• Features
• Tech Stack
• Installation
• Environment Variables
• API Endpoints
  • User Management
  • Video Management
  • Comments
  • Subscriptions
  • Playlists
  • Likes
  • Dashboard
• Error Handling
• Security
• Testing
• Contributing
• License

Overview

This backend application is designed to handle various functionalities of YouTube, including user authentication, video uploads, comments, likes, and subscriptions. Built with modern technologies, it ensures scalability and performance for handling media content and social interactions.

Features

• User authentication (registration, login, logout)
• Video uploads and management
• Commenting on videos
• Subscription management
• Playlist creation and management
• Like and dislike functionalities for videos, comments, and tweets
• Dashboard statistics

Tech Stack

• Backend: Node.js, Express
• Database: MongoDB, Mongoose
• File Storage: AWS S3 for video and image storage
• Authentication: JWT for secure access
• Others: Multer for file uploads, Aggregation pipelines for analytics

Installation

Prerequisites

• Node.js (v14 or higher)
• MongoDB (local or cloud)
• AWS account for S3 storage

Steps

1. Clone the repository:

   git clone https://github.com/your-repo/youtube-backend-clone.git

2. Navigate to the project directory:

   cd youtube-backend-clone

3. Install dependencies:

   npm install

4. Set up environment variables: Create a .env file in the root directory and populate it as follows:

   PORT=5000
   MONGO_URI=your_mongodb_connection_string
   JWT_SECRET=your_jwt_secret
   AWS_ACCESS_KEY_ID=your_aws_access_key
   AWS_SECRET_ACCESS_KEY=your_aws_secret_access_key
   AWS_BUCKET_NAME=your_s3_bucket_name
   

5. Start the development server:

   npm run dev

Environment Variables

Variable	Description
PORT	Port number for the server
MONGO_URI	MongoDB connection string
JWT_SECRET	Secret key for JWT
AWS_ACCESS_KEY_ID	AWS access key for S3 storage
AWS_SECRET_ACCESS_KEY	AWS secret access key
AWS_BUCKET_NAME	Name of the S3 bucket for videos

API Endpoints

User Management

• POST /api/v1/users/register: Register a new user.
• POST /api/v1/users/login: Log in an existing user.
• POST /api/v1/users/logout: Log out the current user.
• POST /api/v1/users/refresh-token: Refresh access token.
• PATCH /api/v1/users/account: Update user account details.

Video Management

• POST /api/v1/video/video-upload: Upload a video.
• GET /api/v1/video/all-videos: Retrieve all videos.
• GET /api/v1/video/:videoId: Get details of a specific video.
• PATCH /api/v1/video/update-details/:videoId: Update video details.
• GET /api/v1/video/delete-video/:videoId: Delete a video.

Comments

• POST /api/v1/video/comment/:videoId: Add a comment to a video.
• PATCH /api/v1/video/comment/:commentId/update: Update a specific comment.
• GET /api/v1/video/comment/:commentId: Get a specific comment.

Subscriptions

• POST /api/v1/channel/subscribe/:channelId: Subscribe to a channel.
• POST /api/v1/channel/:subscriberId/subscribed-to: Get subscribed channels.

Playlists

• POST /api/v1/playlist/create-playlist: Create a new playlist.
• GET /api/v1/playlist/:userId/playlists: Get user playlists.
• GET /api/v1/playlist/:playlistId: Get details of a specific playlist.
• GET /api/v1/playlist/:playlistId/add-video/:videoId: Add a video to a playlist.
• GET /api/v1/playlist/:playlistId/remove-video/:videoId: Remove a video from a playlist.

Likes

• POST /api/v1/video/:videoId/like: Like or dislike a video.
• POST /api/v1/comment/:commentId/like: Like or dislike a comment.

Dashboard

• POST /api/v1/dashboard/stats: Get channel statistics.
• POST /api/v1/dashboard/channel/all-videos: Get all videos uploaded by the channel.

Error Handling

Custom error handling middleware returns meaningful error messages with appropriate status codes for various scenarios (e.g., 400, 404, 500).

Security

• JWT Authentication: Protects routes to ensure only authenticated users can access certain resources.
• Password Hashing: bcrypt is used for secure password storage.
• AWS S3: Securely stores video files.

Testing

Testing for API endpoints is implemented using Jest and Supertest to ensure expected functionality.

Running Tests

npm test

Contributing

1. Fork the project.
2. Create a new branch (git checkout -b feature-branch).
3. Commit your changes (git commit -m 'Add feature').
4. Push to the branch (git push origin feature-branch).
5. Open a Pull Request.

License

This project is licensed under the MIT License.