Real-time Chat Application
Overview
A modern real-time chat application that allows users to communicate instantly across different devices. This project focuses on creating a seamless, responsive user experience with features like instant messaging, file sharing, and message encryption.
Features
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Real-time Messaging
Instant message delivery with typing indicators and read receipts
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Group Chats
Create and manage group conversations with multiple participants
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Media Sharing
Share images, videos, and files with drag-and-drop functionality
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End-to-End Encryption
Secure communication with advanced encryption protocols
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Message History
Access and search your complete conversation history
Technical Challenges
Developing this application required solving several key challenges:
The most significant hurdle was implementing a scalable WebSocket architecture that could handle thousands of concurrent connections while maintaining low latency. I solved this by designing a microservice-based system using Redis for pub/sub communication between server instances.
Another challenge was implementing end-to-end encryption that worked seamlessly across platforms. This required careful key management and a custom protocol for secure message exchange.