Observer Pattern in Spring Boot Example
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Script Kiddie!
Observer Pattern in Spring Boot — Build a Real Courier Tracking Workflow with Async Audit & ETA Processing
What you’ll learn:
• How to implement the Observer Pattern in a real-life courier tracking workflow• How a single event can trigger multiple independent actions cleanly• Observer modules such as Customer Notification, Operations Log, Delivery Metrics, Audit, ETA Calculation, and Courier Score• How to use @Async for AuditObserver and EtaCalculationObserver in high-traffic scenarios• How to publish events for tracking creation, status updates, and courier location updates• How to keep your service layer cleaner, loosely coupled, and easier to extend
In this article, you’ll see:
How one courier tracking event can notify multiple parts of the system
Which operations should stay synchronous and which ones are better handled asynchronously
Why Observer Pattern is a strong fit for production-style backend workflows
For more details, check out the Medium link below — this article walks through the full implementation step by step.
Link: https://sngermiyanoglu.medium.com/observer-pattern-in-spring-boot-build-a-real-courier-tracking-workflow-with-async-audit-eta-b0ba07ccc34e?postPublishedType=initial
What you’ll learn:
• How to implement the Observer Pattern in a real-life courier tracking workflow• How a single event can trigger multiple independent actions cleanly• Observer modules such as Customer Notification, Operations Log, Delivery Metrics, Audit, ETA Calculation, and Courier Score• How to use @Async for AuditObserver and EtaCalculationObserver in high-traffic scenarios• How to publish events for tracking creation, status updates, and courier location updates• How to keep your service layer cleaner, loosely coupled, and easier to extend
In this article, you’ll see:
How one courier tracking event can notify multiple parts of the system
Which operations should stay synchronous and which ones are better handled asynchronously
Why Observer Pattern is a strong fit for production-style backend workflows
For more details, check out the Medium link below — this article walks through the full implementation step by step.
Link: https://sngermiyanoglu.medium.com/observer-pattern-in-spring-boot-build-a-real-courier-tracking-workflow-with-async-audit-eta-b0ba07ccc34e?postPublishedType=initial