SwiftChat is a modern, real-time chat application built using C++ and the Crow microframework. It supports user authentication, multi-user chat over WebSockets, and even integrates with DeepL for language translation.

• User Signup & Login: Secure authentication using JWT tokens.
• Real-Time Chat: WebSocket-based chat with session management.
• Language Translation: Translate messages using DeepL API.
• PostgreSQL Integration: User data and sessions are stored in a PostgreSQL database.
• REST API: Endpoints for user management and translation.
• HTML Templates: Renders HTML pages for login, signup, chat, and communities.

• C++17 compatible compiler (e.g., g++)
• Crow
• nlohmann/json
• jwt-cpp
• libpqxx
• libcurl
• PostgreSQL

1. Clone the Repository:

   git clone https://github.com/alihassancods/swiftchat.git
   cd swiftchat

2. Install Dependencies:

   Make sure you have installed all the required libraries mentioned above. For Ubuntu, you can use:

   sudo apt-get install libpqxx-dev libcurl4-openssl-dev

   You may also need to install Crow, jwt-cpp, and nlohmann/json manually or via your package manager.

3. Set Up Your Environment Variables:

   Create a data.env file in the project root with the following content:

   IP_ADDR=your_postgres_host_ip
   API_KEY=your_deepl_api_key
   

4. Prepare the Database:

   Ensure PostgreSQL is running and create the required database and table:

   CREATE DATABASE swiftchat;
   \c swiftchat
   CREATE TABLE users (
       id SERIAL PRIMARY KEY,
       email TEXT UNIQUE NOT NULL,
       password TEXT NOT NULL,
       username TEXT NOT NULL,
       master_token TEXT
   );

   Default database connection assumes:

   • user: postgres
   • password: 1234
   • port: 5432
   • db: swiftchat

   Adjust these in main.cc or via data.env as needed.

5. Build the Project:

   g++ -std=c++17 -o websocket_app main.cc -lcurl -lcrypto -pthread -lpqxx

6. Run the Server:

   ./websocket_app

   The app will run on port 18080.

• Visit http://localhost:18080/signup to create a new account.
• Visit http://localhost:18080/login to log in.
• Visit http://localhost:18080/chat for the main chat interface.
• The /translate endpoint can be used for text translation.

• POST /signup – Register a new user (email, password)
• POST /login – Authenticate and receive a session token (email, password)
• GET /profile – User profile page (HTML)
• GET /communities – Communities list (HTML)
• GET /chat – Main chat (HTML)
• GET /translate?text=your_text – Translate text to English (uses DeepL)

Connect to: ws://localhost:18080/ws

Handles real-time messaging between authenticated sessions.

MIT

• Crow C++ Framework
• DeepL API
• jwt-cpp
• nlohmann/json
• libpqxx
• libcurl

Ali Hassan Nabeel Raza Khan