data.js

(function(global, $) {

  function PersonalData() {
    var numRetries = 3;

    var sendData = function() {
      $.ajax({
        url: '/api/data',
        type: 'POST',
        error: function(err) {
          console.log('err: ' + err);
          numRetries--;
          if ( numRetries > 0 ) {
            setTimeout(sendData, 3000);
          } else {
            numRetries = 3;
          }
        },
        success: function() {
          console.log('success');
        }
      })
    };

    return {
      sendData: sendData
    };
  }


  this.PersonalData = PersonalData;

}(this, jQuery));