Interview
summary
Compares Server-Sent Events and WebSocket by concrete tradeoffs: SSE uses plain HTTP with an EventStream MIME type, is server-to-client only, text-oriented, easy to consume with polyfills and minimal server reconfiguration; WebSocket performs an HTTP upgrade to a separate TCP-based protocol, supports bidirectional and binary frames, and requires websocket-capable server infrastructure. Notes SSE exists for more than ten years and is lighter for common real‑time updates like feeds or train times.
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