tiptoe_rip.js

var tiptoe = require('tiptoe'),
    shared = require('shared');

function processSet(set) {
  // Do something with the set
}

function getSet(setName, callback) {
  // The functions inside "tiptoe()" parameters, will be executed one after another, assumming "this()" is called.
  tiptoe(
    function getSetCardList() {
      var method           = "GET";
  		var path					   = "/ws/v1.1/output.json/expansion/1/"+encodeURIComponent(setName);
  		var headerOptions    = auth.getOauth("www.mkmapi.eu", path, method);
  
      // once the URL is set, it will invoke its secons parameter (in this case, 'this'), as a function. In practice, the call is 'this(err, result);'
  		shared.getURLAsJSON("https://www.mkmapi.eu"+path, this, 0, headerOptions);
  	},
  	function processSetCardList(err, result) {
  	  // In tiptoe(), the LAST function must have an 'err' as first parameter, and we check it for errors.
  	  if (err)
  	    throw(err);
  		var json = JSON.parse(result);
  		
  		// In this case, I've just called another function with the results
  		if (callback)
  		  callback(json);
  	}
  );
}

// This starts the wheel. It will try to get the BFZ set and will call the function on the second parameter with the data, assumming no errors occurred.
getSet('BFZ', processSet);