Play Framework Java example of an asynchronous GET request to a web service.

gistfile1.java

package controllers;

import java.util.Calendar;
import java.util.TimeZone;

import org.apache.commons.codec.digest.DigestUtils;

import play.libs.F.Function;
import play.*;
import play.libs.WS;
import play.mvc.*;

public class Special extends Controller {

  public static Result IP_Quova() {
    
    String ip = request().getQueryString("ip");
    String apikey = "neustar apiKey";
    String secret = "neustar secret";
    long gmdateSeconds = (Calendar.getInstance(TimeZone.getTimeZone("UTC")).getTimeInMillis()) / 1000;
      	
    String sig = DigestUtils.md5Hex(apikey + secret + gmdateSeconds);
      	
    return async(
    	WS.url("http://api.quova.com/v1/ipinfo/" + ip)
      	.setQueryParameter("apikey", apikey)
      	.setQueryParameter("sig", sig)
      	.get()
      	.map(
          new Function<WS.Response, Result>() {
            public Result apply(WS.Response response) {
              return ok(response.getBody()).as("text/xml");
            }
          }
        ) 
    ); 
  }
}