August 2019
Intermediate to advanced
256 pages
6h 43m
English
book
Hands-On Enterprise Java Microservices with Eclipse MicroProfile
by Cesar Saavedra, Heiko W. Rupp, Jeff Mesnil, Pavol Loffay, Antoine Sabot-Durand, Scott Stark
Content preview from Hands-On Enterprise Java Microservices with Eclipse MicroProfile
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Human operators
The primary use case for the JSON response payload is to provide a way for operators to investigate the application state. To support this, health checks allow for additional data to be attached to a health check response as we have seen in the CheckDiskspace and ServiceCheck examples. Consider the following fragment:
[...]return HealthCheckResponse .named("memory-check") .withData("free-heap", "64mb") .up() .build();[...]
Here, the additional information about free-heap is provided and will become part of the response payload, as shown in this response fragment. The JSON response fragment showing memory-check procedure content is as follows:
{... "checks": [ { "name": "memory-check", "state": "UP", "data": { "free-heap": ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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