Playframework – Plays 2 views of views WebService call without using AsyncResult

public static Result feedTitle( String feedUrl) {
 return async(
 WS.url(feedUrl).get().map(
 new Function() {
 public Result apply(WS.Response response) {
 return ok("Feed title:" + response.asJson().findPath("title"));
 }
 }
) 
 );
}

Promise promise = WS.url("http://some. website.com").get();
Response response = promise.get(); // I've got the result, but I've also blocked

Play 2 allows you to perform async webservice calls via AsyncResult, It does not block the thread:

public static Result feedTitle(String feedUrl) {
 return async(
 WS.url(feedUrl). get().map(
 new Function() {
 public Result apply(WS.Response response) {
 return ok("Feed title:" + response .asJson().findPath("title"));
 }
 }
 )
 );
}

This only applies to You are performing simple operations, such as passing the result of a WS call directly to the user. But, what if you have to perform other operations on the result?

Look at the documentation, it looks like you can do this:

Promise promise = WS.url("http://some. website.com").get();
Response response = promise.get(); // I've got the result, but I've also blocked

This is obviously not ideal Is there a way to make asynchronous calls while allowing Play to pass execution to other threads?

Take a look at https://github.com/jroper/play-promise-presentation. This is how I design a project that may have multiple promise calls, etc. System, and operate various promise responses to the content required for more complex responses, etc. I really know it very well.

The best part is – this example doesn’t feel too verbose .It reads very well and is very simple to understand.