Developer Builds and Deploys Full-Stack Real-Time Chat App Using Node.js and Socket.io

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A developer has built and deployed a production-ready chat application from scratch, documenting the full process publicly. The app uses Node.js, Express, Socket.io, and MongoDB on the backend, with Vanilla JavaScript handling the frontend. It features JWT-based user authentication, real-time messaging via WebSockets, and automatic message deletion after 30 days. The application was deployed on Render.com's free tier by connecting a GitHub repository, going live within minutes. Key challenges during development included resolving MongoDB DNS issues, configuring Socket.io CORS settings, and managing socket connections gracefully.

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

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