How do I get query parameters in the URL

Question

In Dart I am working on a web game. In this I would need a function where I can get data from the URL, in the same way that you would get it in PHP. How would I do this?

Say I, for example, append the following to my URL when I load my web game: ?id=15&randomNumber=3.14. How can I get them in Dart either as a raw string (preferred) or in some other format?

Answer 1

You can use the Uri class from dart:core
https://api.dartlang.org/apidocs/channels/stable/dartdoc-viewer/dart-core.Uri

ie:

main() {
  print(Uri.base.toString()); // http://localhost:8082/game.html?id=15&randomNumber=3.14
  print(Uri.base.query);  // id=15&randomNumber=3.14
  print(Uri.base.queryParameters['randomNumber']); // 3.14
}

Answer 2

import 'dart:html';   

void doWork(){  
  var uri = Uri.dataFromString(window.location.href); //converts string to a uri    
  Map<String, String> params = uri.queryParameters; // query parameters automatically populated
  var param1 = params['param1']; // return value of parameter "param1" from uri
  var param2 = params['param2'];
  print(jsonEncode(params)); //can use returned parameters to encode as json
}