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How do webhooks allow applications to communicate asynchronously?

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How do webhooks allow applications to communicate asynchronously?

Asked on Nov 24, 2025

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Webhooks enable applications to communicate asynchronously by allowing one application to send real-time data to another when a specific event occurs. This is achieved by registering a URL endpoint on the receiving application, which the sending application calls with an HTTP request whenever the event is triggered.

Example Concept: Webhooks operate by having the receiving application provide a public URL endpoint to the sending application. When an event occurs in the sending application (such as a new user registration or a payment confirmation), it sends an HTTP POST request to the specified URL with a payload containing event data. This allows the receiving application to process the data immediately, enabling real-time updates and integrations without the need for continuous polling.

Additional Comment:

Webhooks are commonly used in services like GitHub, Stripe, and Slack to notify external systems of events.
Security can be enhanced by validating incoming requests using secret tokens or signatures.
It's important to handle webhook requests asynchronously to prevent blocking the sending application.
Ensure proper error handling and retry mechanisms in case of delivery failures.

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How do webhooks allow applications to communicate asynchronously?

Asked on Nov 24, 2025

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