Grokking the System Design Interview
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Polling vs Long-Polling vs Webhooks
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Polling, long-polling, and webhooks are three techniques used in applications for getting updates or information, each with its own mechanism and use case.

Polling

  • Definition: Polling is a technique where the client repeatedly requests (polls) a server at regular intervals to get new or updated data.
  • Characteristics:
    • Regular Requests: The client makes requests at fixed intervals (e.g., every 5 seconds).
    • Client-Initiated: The client initiates each request.

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