Frontend Developer's Guide to Real-Time Data: Polling, SSE, and WebSocket

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Frontend developers have three main options for real-time updates: polling, Server-Sent Events (SSE), and WebSocket. Polling involves the client repeatedly requesting updates from the server via standard HTTP. SSE allows the server to push updates to the client over a single, persistent HTTP connection. WebSocket provides a persistent, bidirectional channel for instant, two-way communication. The choice depends on the specific data flow needs between the frontend and backend.

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