This article compares four approaches for delivering live‑stream comments—HTTP polling, WebSocket, Server‑Sent Events, and an upgraded SSE cluster design—explaining their mechanisms, trade‑offs in latency, resource usage, scalability, and how to achieve high‑availability real‑time comment delivery.
This article compares HTTP polling, WebSocket, and Server‑Sent Events (SSE) for large‑screen data fetching, explains their advantages and drawbacks, outlines suitable business scenarios, and provides complete front‑end and back‑end code examples for implementing SSE and WebSocket connections.
This article explains the limitations of HTTP polling and long‑polling for server‑initiated messages, introduces the WebSocket protocol as a full‑duplex solution, details its handshake, frame format, and practical use cases such as web games and real‑time chat.
WebSocket enables true full‑duplex communication between browsers and servers, overcoming the limitations of HTTP’s request‑response model; the article explains why simple HTTP polling and long polling are insufficient, details the WebSocket handshake, frame format, and ideal scenarios such as web games and real‑time chat.
