yaml httpClient: connectTimeout: 5000 readTimeout: 10000 maxConnections: 100 userAgent: "MyApp/1.0" HttpClient client = new HttpClientBuilder(environment) .using(configuration.getHttpClientConfiguration()) .build("my-client"); HttpResponse<String> response = client.target("http://api.example.com") .request() .get(String.class); client.target("http://api.example.com") .request() .async() .get(new InvocationCallback<HttpResponse<String>>() { @Override public void completed(HttpResponse<String> response) { } @Override public void failed(Throwable throwable) { } });