in sample-java-gradle/src/main/java/com/google/WebApp.java [10:25]
public static void main(String[] args) throws IOException {
int port = Integer.parseInt(System.getenv().getOrDefault("PORT", "8080"));
HttpServer server = HttpServer.create(new InetSocketAddress(port), 0);
server.createContext("/", handler -> {
byte[] response = "hello, world".getBytes();
handler.sendResponseHeaders(200, response.length);
try (OutputStream os = handler.getResponseBody()) {
os.write(response);
}
});
System.out.println("Listening at http://localhost:" + port);
server.start();
}