Render output format (HTML, JSON, XML) depending on parameter?

Question

is there a good or proper way to render the output in Play Framework depending on a parameter? Example:

For HTML:

http://lo         


        

Answer 1

Write 2 methods, use 2 routes (as you don't specify I will use Java samples:

public static Result userAsHtml(Long id) {
    return ok(someView.render(User.find.byId(id)));
}

public  static Result userAsJson(Long id) {
    return play.libs.Json.toJson(User.find.byId(id));
}

routes:

/GET    /user/get/:id/html     controllers.YourController.userAsHtml(id:Long)
/GET    /user/get/:id/json     controllers.YourController.userAsJson(id:Long)

next you can just make a link in other view to display user's data

Show details
Get JSON

or something else...

edit #1

you can also use common if or case to determine final output

public static Result userAsV() {
    String vType = form().bindFromRequest().get("v");

    if (vTtype.equals("HTML")){
        return ok(someView.render(User.find.byId(id)));
    }

    return play.libs.Json.toJson(User.find.byId(id));
}