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API Design

Webhook

A user-defined HTTP callback triggered by an event in a source system, pushing real-time notifications to a specified URL instead of requiring polling.

Related Protocols

HTTP

Mentioned in Guides

Implementing Webhooks: A Complete Guide API Design & Best Practices

Diagnosing Email Bounces: Soft (4xx) vs Hard (5xx) Email Delivery

Bulk Email Delivery: Avoiding the Spam Folder Email Delivery

Dead Letter Queues and Async Error Handling Error Handling Patterns

See Also

Server-Sent Events (SSE) Real-Time & Streaming

Long Polling Real-Time & Streaming

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