Pro Jakarta EE 10 by Peter Späth

Author:Peter Späth
Language: eng
Format: epub
ISBN: 9781484282144
Publisher: Apress

Adapt the contents according to your needs. In addition, you can add an OpenAPI annotation to the REST class RestDate.java:@Path("/d")

public class RestDate {

...

@GET

@Produces("application/json")

// OpenAPI

@Operation(summary = "Outputs the date",

description = "This method outputs the date")

public String stdDate() {

return "{"date":"" +

ZonedDateTime.now().toString() + ""}";

}

...

}

OpenAPI can do a lot more. For details, see the OpenAPI specification.

Next, let the application report some performance figures. This is what the Metrics 4.0 specification is about. To use it, add a couple of annotations to the REST method as follows: ...

@GET

@Produces("application/json")

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