Basic Chat Room Application

This is a chat room application built with React Native for the frontend and FastAPI for the backend. The application allows users to create chat rooms and exchange messages in real-time.

Features

• Create a new chat room
• Join an existing chat room
• Send and receive messages in real-time

Technologies Used

• React Native
• FastAPI
• PostgreSQL (for database storage)

Prerequisites

Before running the application, ensure that you have the following installed:

• Node.js
• React Native CLI
• Python
• PostgresSQL
• Pipenv (Python package manager)
• Android Studio Application or a physical mobile device

Getting Started

To get started to use the application, readers need to first make sure to clone the repository first

Backend Setup

1. Open a terminal window
2. Navigate to the backend directory and execute pipenv install --dev to install all the backend dependencies
3. Update the database configuration in backend/app/database.py to match your database settings.
4. execute uvicorn main:app --reload to run the FastAPI application.

Note: Database migrations are automatically handled by a code in the database.py file.

Frontend Setup

We recommend using Android Studio to emulate two mobile devices simultaneously for testing the chat application.

1. Open a new terminal window
2. Navigate to frontend directory and execute npm install to install all the frontend dependencies
3. execute npm run android and connect to a physical device to test the app

Using Android Studio

If you're using Android Studio and want to run the application on two devices simultaneously, follow the steps below:

Note: Ensure that you have at least two emulator devices installed in your Android Studio.

1. Open two terminal windows and make sure both terminal windows are in the frontend directory
2. In the first terminal window, execute npx react-native start to start the development server.
3. In the second terminal window, execute npx react-native run-android to run the app on one of your emulator devices.
4. After the application has started, launch the other emulator device from Android Studio.
5. . In the terminal where you executed npx react-native run-android, run npx react-native run-android --deviceId <device_id> to run the app on the second emulator device.

You can obtain the <device_id> by executing adb devices in any terminal window.

Attachments

Homescreen View

Chatroom View