Chat App Backend

A real-time chat application backend built using Node.js, Express, Socket.IO, and MongoDB. This backend supports real-time messaging, file uploads, and basic CRUD operations for managing users and conversations.

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Features

• Real-time messaging between users with Socket.IO.
• File upload support for images, videos, and documents.
• User authentication and authorization.
• CRUD operations for managing users and conversations.
• RESTful APIs for client interaction.

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Technologies Used

• Node.js: Backend runtime environment.
• Express.js: Framework for building the RESTful API.
• Socket.IO: For real-time communication.
• MongoDB: Database for storing user and message data.
• Multer: Middleware for file uploads.
• AWS S3: For storing uploaded files (or local storage).

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Prerequisites

Before you begin, ensure you have the following installed:

• Node.js: Download
• MongoDB: Download
• npm: Comes with Node.js.
• A code editor like VS Code.

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Environment Variables

The following environment variables are required to run the Chat App Backend. Add these variables to a .env file in the root directory of your project.

MongoDB Configuration

MONGO_URL=your_mongodb_connection_string

Server Configuration

PORT=your_server_port

Security Configuration

• SALT_ROUND=your_salt_round_number
• SECRET_KEY=your_secret_key

AWS S3 Configuration

• Access_key=your_aws_access_key
• S3_Secret_key=your_aws_s3_secret_key
• Bucket_Name=your_s3_bucket_name
• Region=your_aws_region

Email Configuration

• App_password=your_email_app_password
• Sender_email=your_email_address
• Frontend_url=your_frontend_url
• Email_Verification_Secret_key=your_email_verification_secret_key

Getting Started

Run following cmd to install use repo.

git clone https://github.com/CodeSciRahul/chat-app-backend.git
npm install
nodemon server.js