ConceptSubscription
Subscription
An asynchronous communication pattern in which a server proactively notifies clients of state changes, implemented through WebSocket, SSE, or push notifications, providing high real-time responsiveness.
Timeline (last 90 days)
Oct 20
Polling means the client actively queries job status from the server at fixed intervals; it is simple to implement and broadly compatible, but generates many wasted requests and has latency, while subscription uses server push via WebSocket or SSE and is highly real-time but requires maintaining long connections, which is less friendly to mobile and weak networks.
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