Full Stack Realtime Chat App Development

Vraj Soni

Vraj Soni

Real-Time Chat Application

Welcome to the Full Stack Realtime Chat App project, where we're building a scalable and secure real-time chat experience using the latest technologies. Whether you're a seasoned developer or a beginner, we invite you to contribute and be a part of this exciting journey!

Table of Contents

📝 Introduction

This project aims to provide a real-time chat experience that's both scalable and secure. With a focus on modern technologies, we're building an application that's easy to use and maintain.

✨ Features

Real-time Messaging: Send and receive messages instantly using Socket.io
User Authentication & Authorization: Securely manage user access with JWT
Scalable & Secure Architecture: Built to handle large volumes of traffic and data
Modern UI Design: A user-friendly interface crafted with React and TailwindCSS
Profile Management: Users can upload and update their profile pictures
Online Status: View real-time online/offline status of users

🛠️ Tech Stack

Backend: Node.js, Express, MongoDB, Socket.io
Frontend: React, TailwindCSS
Containerization: Docker
Orchestration: Kubernetes (planned)
Web Server: Nginx
State Management: Zustand
Authentication: JWT
Styling Components: DaisyUI

🔧 Prerequisites

Node.js (v14 or higher)
Docker (for containerizing the app)
Git (to clone the repository)

📝 Setup .env File

Navigate to the backend directory:
cd backend
Create a .env file and add the following content (modify the values as needed):
MONGODB_URI=mongodb://mongo:27017/chatapp
JWT_SECRET=your_jwt_secret_key
PORT=5001
> **Note:** Replace `your_jwt_secret_key` with a strong secret key of your choice.

Clone the Repository

🏗️ Build and Run the Application
Follow these steps to build and run the application:
Build & Run the Containers:
cd full-stack_chatApp
docker-compose up -d --build
Access the application in your browser:
http://localhost

🛠️ Getting Started

Follow these simple steps to get the project up and running on your local Host using docker.
cd full-stack_chatApp

Create a Docker network:

docker network create full-stack

🛠️ Building the Frontend

cd frontend
docker build -t full-stack_frontend .

Run the Frontend container:

docker run -d --network=full-stack  -p 5173:5173 --name frontend full-stack_frontend:latest
The frontend will now be accessible on port 5173.

Run the MongoDB Container:

docker run -d -p 27017:27017 --name mongo mongo:latest

🛠️ Building the Backend

cd backend

Build the Backend image:

docker build -t full-stack_backend .

Run the Backend container:

docker run -d --network=full-stack --add-host=host.docker.internal:host-gateway -p 5001:5001 --env-file .env full-stack_backend
This will build and run the backend container, exposing the backend-API on port 5001.
Backend API: http://localhost:5001

To Verify the connection between backend and database:

docker-compose logs -f

Once the backend and frontend containers are running, you can access the application in your browser:

Frontend: http://localhost
You can now interact with the real-time chat app and start messaging!

🔮 Future Plans

This project is evolving, and here are a few exciting things on the horizon:
CI/CD Pipelines: Implement Continuous Integration and Continuous Deployment pipelines to automate testing and deployment.
Kubernetes (K8s): Add Kubernetes manifests for container orchestration to deploy the app on cloud platforms like AWS, GCP, or Azure.
Feature Expansion: Add more features like group chats, media sharing, and user status updates.
Stay tuned for updates as we continue to improve and expand this project!

📚 Project Snapshots:

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Posted Jul 8, 2025

Developed a scalable and secure real-time chat application using modern technologies.

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Jun 20, 2025 - Jul 8, 2025