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Real-Time Chat Application

A simple real-time chat application built with Next.js, focused on understanding the core principles of real-time systems. The project emphasizes real-time communication, API integration, and state synchronization.

Technologies Used

next Next
react React
tailwindcss Tailwindcss
typeScript TypeScript
redis Redis
reactquery Reactquery
elysiajs Elysiajs
bun Bun
next Next
react React
tailwindcss Tailwindcss
typeScript TypeScript
redis Redis
reactquery Reactquery
elysiajs Elysiajs
bun Bun
next Next
react React
tailwindcss Tailwindcss
typeScript TypeScript
redis Redis
reactquery Reactquery
elysiajs Elysiajs
bun Bun

Learnings & Benefits

Real-time Communication

Gained hands-on experience with WebSockets (or similar real-time technologies) to enable instant messaging. Solved challenges related to connection stability, message ordering, and handling user presence (online/offline status).

Optimistic UI Updates

Implemented optimistic UI updates using TanStack Query. This ensures the chat interface feels incredibly responsive by displaying sent messages immediately before the server confirms receipt, rolling back only if an error occurs.

State Synchronization

Mastered the synchronization of client-side state with the server. Handled edge cases like multiple users typing simultaneously and ensuring all clients receive updates in real-time without manual refreshing.