Get request parameter with Play Framework?

Question

I am learning play framework and understand that I can map a request such as /manager/user as:

  GET      /manage/:user    Controllers.Application.some(user:String) 

How would I map a request like /play/video?video_id=1sh1?

Answer 1

You have at least two possibilities, let's call them approach1 and approach2.

1. In the first approach you can declare a routes param with some default value. 0 is good candidate, as it will be easiest to build some condition on top of it. Also it's typesafe, and pre-validates itself. I would recommend this solution at the beginning.
2. Second approach reads params directly from request as a String so you need to parse it to integer and additionally validate if required.

routes:

GET     /approach1      controllers.Application.approach1(video_id: Int ?=0) GET     /approach2      controllers.Application.approach2 

actions:

public static Result approach1(int video_id) {     if (video_id == 0) return badRequest("Wrong video ID");     return ok("1: Display video no. " + video_id); }  public static Result approach2() {     int video_id = 0;      if (form().bindFromRequest().get("video_id") != null) {         try {             video_id = Integer.parseInt(form().bindFromRequest().get("video_id"));         } catch (Exception e) {             Logger.error("int not parsed...");         }     }      if (video_id == 0) return badRequest("Wrong video ID");     return ok("2: Display video no. " + video_id); } 

PS: LOL I just realized that you want to use String identifier... anyway both approaches will be similar :)