8arcturus / sample-app-quarkus

A sample web application using quarkus

A basic web application using quarkus.io.

1. Run tests: ./mvnw test

2. Run in Dev mode: ./mvnw compile quarkus:dev

3. Web Resources:

   3.1 Basic: http://0.0.0.0:8080/hello

   3.2 Dependency Injection: http://0.0.0.0:8080/hello/greeting/quarkus

    3.2.1 Annotate class using, `@ApplicationScoped`
    
    @ApplicationScoped
    public class GreetingService {
    }        
    
    3.2.2 Inject the dependency using, `@Inject`
    
    @Inject
    GreetingService service;
   

   3.3 Async: http://0.0.0.0:8080/hello/async

   public CompletionStage<String> async() {
       return CompletableFuture.supplyAsync(() -> {
           return "hello async";
       });
   }
   

4. Package: ./mvnw package

5. Run Jar: java -jar target/sample-app-quarkus-1.0.0-SNAPSHOT-runner.jar

   Runner jar is not a uber-jar. Dependencies exists inside target/lib.

6. Metrics: http://0.0.0.0:8080/metrics (or) http://0.0.0.0:8080/metrics/application for custom metrics.

   6.1 Add dependency

   <dependency>
     <groupId>io.quarkus</groupId>
     <artifactId>quarkus-smallrye-metrics</artifactId>
   </dependency>
   

   6.2 Add annotations: @Counted / @Timed / @Guage on the resources.