How to add header as parameter in ajax call rest web service request in sencha touch

Can anybody tell How to add header as parameter in ajax call rest web service request in sencha touch

Thanks

Here is how you can add header in the sencha touch AJAX call,

Ext.Ajax.request({
   url: 'myUrl',

   headers: {
      "Content-Type": "application/json"
   },

   callback: function(options, success, response) {
      console.log(response.responseText);
   }
});