WEBVTT

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How can one service tell another something changed?

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A webhook sends an update when a chosen event happens.

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Understand the event notification.
6 webhook checks.

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Choose the event
Subscribe to the specific change the business needs to know.
Selected event · Relevant update · Clear purpose

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Send to a receiving address
The service delivers event data to a configured URL.
Source service · Receiving URL · Event data

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Verify the sender
The receiving system should validate the delivery correctly.
HTTPS connection · Signature checks · Protected secret

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Define the follow-up action
Receiving data and completing a business task are separate steps.
Received update · Process the data · Confirm the result

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Plan for missed deliveries
Check retry or redelivery options when systems are unavailable.
Delivery failure · Retry policy · Recovery process

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Handle repeated messages
A repeated event must not accidentally trigger duplicate work.
Event identifier · Duplicate check · Safe processing

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Your checklist
Choose the event · Send to a receiving address · Verify the sender · Define the follow-up action · Plan for missed deliveries · Handle repeated messages

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Check both delivery and the action that follows.
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