/
HelloWorldUrlClient.java
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/
HelloWorldUrlClient.java
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/*
* Copyright © 2018 Apple Inc. and the ServiceTalk project authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.servicetalk.examples.http.helloworld.async;
import io.servicetalk.http.api.HttpClient;
import io.servicetalk.http.netty.HttpClients;
import java.util.concurrent.CountDownLatch;
import static io.servicetalk.http.api.HttpSerializationProviders.textDeserializer;
public final class HelloWorldUrlClient {
public static void main(String[] args) throws Exception {
try (HttpClient client = HttpClients.forMultiAddressUrl().build()) {
// This example is demonstrating asynchronous execution, but needs to prevent the main thread from exiting
// before the response has been processed. This isn't typical usage for a streaming API but is useful for
// demonstration purposes.
CountDownLatch responseProcessedLatch = new CountDownLatch(1);
client.request(client.get("http://localhost:8080/sayHello"))
.whenFinally(responseProcessedLatch::countDown)
.subscribe(resp -> {
System.out.println(resp.toString((name, value) -> value));
System.out.println(resp.payloadBody(textDeserializer()));
});
responseProcessedLatch.await();
}
}
}