Allow to register JAX-RS endpoints generated by extensions

[dyutiman]

Description

The JAX-RS resource produced by a Quarkus extension is not registered when using quarkus-resteasy-reactive or quarkus-resteasy-reactive-jackson.

The same is working with just quarkus-resteasy.

Implementation ideas

No response

[geoand]

Can you elaborate a little more on this please?

[dyutiman]

I created a very simple extension to expose one JAX-RS enpoint

package com.dyutiman.rest.extension.runtime;

import jakarta.ws.rs.GET;
import jakarta.ws.rs.Path;

@Path("/dummy")
public class DummyResource {

    @GET
    public String get() {
        return "My resource called";
    }
}

And I have used 'quarkus-resteasy' artifactId in my pom.xml under runtime and 'quarkus-resteasy-deployment' in deployment. I created the BuildStep to include this class.

@BuildStep
  AdditionalBeanBuildItem resource() {
      return new AdditionalBeanBuildItem(DummyResource.class);
  }

This is exposed perfectly when I use the extension in my project.

But, instead of 'quarkus-resteasy' and 'quarkus-resteasy-deployment', if I use 'quarkus-resteasy-reactive' and 'quarkus-resteasy-reactive-deployment' or 'quarkus-resteasy-reactive-jackson' and 'quarkus-resteasy-reactive-jackson-deployment', the endpoint does not work anymore.

Do I have to use a different BuildItem for this?

[geoand]

Try using AdditionalResourceClassBuildItem

[dyutiman]

Thanks for the reply. I tried the below BuildStep, but my class is not recognised.

@BuildStep
 void resource(CombinedIndexBuildItem index,
               BuildProducer<AdditionalResourceClassBuildItem> additionalResourceClassProducer) {
     DotName path = DotName.createSimple(Path.class.getName());
     for (AnnotationInstance restController : index.getIndex().getAnnotations(path)) {
         AnnotationTarget annotTarget  = restController.target();
         System.out.println("got class " + annotTarget);
         if(AnnotationTarget.Kind.CLASS.equals(annotTarget.kind())) {
             ClassInfo targetClass = restController.target().asClass();
             String singlePath = restController.value("value").value().toString();
             System.out.println("PATH " + singlePath);
             additionalResourceClassProducer.produce(new AdditionalResourceClassBuildItem(targetClass, singlePath));
         }
     }
 }

Do I have to make anything for my class to be included in CombinedIndexBuildItem?

[geoand]

Do I have to make anything for my class to be included in CombinedIndexBuildItem?

Nope. We use AdditionalResourceClassBuildItem in our code base and it works as expected

[dyutiman]

Just to confirm my @path class belongs to the runtime module of my extension. I hope this is fine.

[dyutiman]

Well, it started working after I added the jandex-maven-plugin to my runtime pom.xml.

<plugin> <groupId>io.smallrye</groupId> <artifactId>jandex-maven-plugin</artifactId> <version>3.1.3</version> <executions> <execution> <id>make-index</id> <goals> <goal>jandex</goal> </goals> </execution> </executions> </plugin>

Thanks @geoand for your help on AdditionalResourceClassBuildItem!

[geoand]

👍🏼