Liferay 7.2 api json url 404 - api

Question

I have:
Eclispse
Version: 2019-06 (4.12.0)
Build id: 20190614-1200
Liferay 7.2.0 CE GA1.
I use Gradle.
I followed this tutorial:
https://www.liferaystack.com/2017/11/rest-extender-and-jax-rs-restful-web-service-in-liferay-7-dxp.html
I created a rest module.
I created two file of configuration inside the folder "src/main/resources/configuration":
com.liferay.portal.remote.cxf.common.configuration.CXFEndpointPublisherConfiguration-cxf.properties
Code:
contextPath=/my-rest-service
authVerifierProperties=auth.verifier.BasicAuthHeaderAuthVerifier.urls.includes=*
com.liferay.portal.remote.rest.extender.configuration.RestExtenderConfiguration-rest.properties
Code:
contextPaths=/my-rest-service
jaxRsServiceFilterStrings=(component.name=com.liferaystack.application.MyRestServiceApplication)
This is the MyRestWebserviceApplication.java:
package com.liferaystack.application;
import java.util.Collections;
import java.util.Set;
import javax.ws.rs.ApplicationPath;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Application;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.jaxrs.whiteboard.JaxrsWhiteboardConstants;
/**
* #author pinoteam
*/
#ApplicationPath("/my-rest-service")
#Component(immediate = true, service = Application.class)
public class MyRestWebserviceApplication extends Application {
public Set<Object> getSingletons() {
return Collections.<Object>singleton(this);
}
#GET
#Produces("text/plain")
public String working() {
return "It works!";
}
#GET
#Path("/morning")
#Produces("text/plain")
public String hello() {
return "Good morning!";
}
#GET
#Path("/mattina")
#Produces("text/plain")
public String helloGa() {
return "Good morning!";
}
#GET
#Path("/morning/{name}")
#Produces("text/plain")
public String morning(
#PathParam("name") String name,
#QueryParam("drink") String drink) {
String greeting = "Good Morning " + name;
if (drink != null) {
greeting += ". Would you like some " + drink + "?";
}
return greeting;
}
}
I run build and deploy.
The app is active, but nothing work.
In control panel i have not any Rest Extender Configuration and i have not api at any url.
what am i missing? any idea?

Answer 1

The tutorial you link is for Liferay 7.0 - the package/path names of the configuration files might have changed, and I've seen a context path being declared in bnd.bnd, rather than those property files - things might have changed since then.
An alternative starting point might be the blade sample, which is written for 7.2, and provides a Whiteboard-properties in the Java class:
#Component(
property = {
JaxrsWhiteboardConstants.JAX_RS_APPLICATION_BASE + "=/users",
JaxrsWhiteboardConstants.JAX_RS_NAME + "=Users"
},
service = Application.class
)
public class UsersRestService extends Application {
#GET
#Path("/list")
#Produces("text/plain")
public String getUsers() {
...
}
...
That plugin's configuration file is rather trivial (looks optional on first glance, but don't take my word for it)