Server.java

package io.vertx.example.core.http2.push;

import io.vertx.core.AbstractVerticle;
import io.vertx.core.http.HttpMethod;
import io.vertx.core.http.HttpServer;
import io.vertx.core.http.HttpServerOptions;
import io.vertx.core.http.HttpServerResponse;
import io.vertx.core.net.OpenSSLEngineOptions;
import io.vertx.core.net.PemKeyCertOptions;
import io.vertx.example.util.Runner;

/*
 * @author <a href="http://tfox.org">Tim Fox</a>
 */
public class Server extends AbstractVerticle {

  // Convenience method so you can run it in your IDE
  public static void main(String[] args) {
    Runner.runExample(Server.class);
  }

  @Override
  public void start() throws Exception {

    HttpServer server =
      vertx.createHttpServer(new HttpServerOptions().
          setUseAlpn(true).
          setSsl(true).
          setPemKeyCertOptions(new PemKeyCertOptions().setKeyPath("server-key.pem").setCertPath("server-cert.pem")
      ));

    server.requestHandler(req -> {
      String path = req.path();
      HttpServerResponse resp = req.response();
      if ("/".equals(path)) {
        resp.push(HttpMethod.GET, "/script.js", ar -> {
          if (ar.succeeded()) {
            System.out.println("sending push");
            HttpServerResponse pushedResp = ar.result();
            pushedResp.sendFile("script.js");
          } else {
            // Sometimes Safari forbids push : "Server push not allowed to opposite endpoint."
          }
        });

        resp.sendFile("index.html");
      } else if ("/script.js".equals(path)) {
        resp.sendFile("script.js");
      } else {
        System.out.println("Not found " + path);
        resp.setStatusCode(404).end();
      }
    });

    server.listen(8443, "localhost", ar -> {
      if (ar.succeeded()) {
        System.out.println("Server started");
      } else {
        ar.cause().printStackTrace();
      }
    });
  }
}