Build a Real-Time Chat App with MERN, RabbitMQ & Microservices | Socket.IO, Redis, AWS Deployment

In this video, I’ll show you how I built a scalable, production-ready real-time chat application using the MERN stack, RabbitMQ, and microservices architecture. The app includes OTP-based authentication, Dockerized services, Redis caching, and is fully deployed on AWS.

In this full-stack project tutorial, you'll learn how to create a production-ready real-time chat application using:

MERN Stack (MongoDB, Express, React, Node.js)

Microservices Architecture

RabbitMQ for service communication

Socket.IO for real-time messaging

Redis for caching

AWS for deployment

Whether you're building a React chat app, exploring microservices with Node.js, or trying to create an Uber Eats-like scalable architecture, this video will give you real-world experience.

✅ Key Features:

Real-time Chat with Socket.IO

OTP-based Email Authentication

Microservices via RabbitMQ

Redis Caching for Performance

Fully Deployed on AWS

Scalable & Modular Backend

Responsive UI with React.js

📚 Helpful Resources:

🔗 Source Code: https://www.smalltowncoder.online
📘 AWS & RabbitMQ Setup Guide: https://drive.google.com/file/d/1zCPz...

⏰ Timestamps:
00:00:00 - Introduction
00:00:25 - Project Demo
00:06:12 - How to Get the Source Code
00:09:02 - Creating User and Mail Service
02:04:28 - Creating Chat Service
03:28:00 - Starting Frontend & Implementing Authentication and Chats
07:43:56 - Implementing Socket.IO
09:59:04 - Deployment to AWS

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