What does the React frontend do in DevTinder?
It handles the UI: the auth flow, profile feed, swiping, matches, and chat. It calls the backend's REST APIs and connects to a WebSocket for live chat. The frontend is the user-facing half of the architecture.
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More FAQs in DevTinder Project Architecture: Frontend, Backend, and Database
A React frontend calling Express REST APIs and a Socket.IO WebSocket for live chat, with Express using Mongoose to read and write MongoDB, and JWT for auth. Each part has a clear role and they fit together as a full-stack system.
It exposes REST APIs for auth, profiles, matching, and chat history. It validates requests, applies JWT auth middleware, talks to MongoDB through Mongoose, and hosts the WebSocket server for live chat.
With a WebSocket connection via Socket.IO that stays open between the frontend and backend. The server pushes new messages to connected clients instantly, without polling, which is essential for real-time chat UX.
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