apirequest.js

/**
 * @param options
 var defaults = {
    url: '',
    data: {},
    onSuccess: false,
    onError: false,
    onFail: false,
    popupOnSuccess: false,
    popupOnError: false,
    messageOnSuccess: false,
    messageOnError: false,
    redirect: false,
  };

 */
function apirequest(options) {
  var response = {};
  var defaults = {
    url: '',
    data: {},
    onSuccess: false,
    onError: false,
    onFail: function (reply) {
      if (typeof console === "undefined") {
        this.console = {log: function() {}};
      }
      console.log('Request to ' + settings.url + ' can not be parsed. Reply: ');
      console.log(reply);
      if (settings.popupOnError) {
        noticePopup({text: 'Сервер ответил ошибкой', type: 'error'});
      }
    },
    onDone: false,
    after: false,
    popupOnSuccess: false,
    popupOnError: false,
    messageOnSuccess: false,
    messageOnError: false,
    redirect: false,
  };
  var settings = $.extend({}, defaults, options);

  var request = {
    onFail: function (reply) {
      if (typeof(settings.onFail) === "function") {
        settings.onFail(reply);
      }
    },
    onDone: function () {
      if (typeof(settings.onDone) === "function") {
        settings.onDone();
      }
    },
    onError: function () {
      if (typeof(settings.onError) === "function") {
        settings.onError(response);
      }
      if (settings.popupOnError) {
        this.popup();
      }
      if (settings.messageOnError) {
        this.messages();
      }
    },
    onSuccess: function () {
      if (typeof(settings.onSuccess) === "function") {
        settings.onSuccess(response);
      }
      if (settings.redirect && response.checkRedirect()) {
        response.doRedirect();
      }
      if (settings.reload && response.checkReload()) {
        response.doReload();
      }
      if (settings.popupOnSuccess) {
        this.popup();
      }
      if (settings.messageOnSuccess) {
        this.messages();
      }
    },
    after: function () {
      if (typeof(settings.after) === "function") {
        settings.after(response);
      }
    },
    popup: function () {
      response.popupFirstMessage();
    },
    messages: function () {
      response.drawAllMessages();
    }
  };

  this.getToken = function () {
    if (typeof JohnSnow === 'undefined') {
      return false;
    }
    if (typeof JohnSnow.tokens === 'undefined') {
      return false;
    }
    if (typeof JohnSnow.tokens[settings.url] === 'undefined') {
      return false;
    }
    return JohnSnow.tokens[settings.url];
  };

  var ajaxSettings = {};
  ajaxSettings.url = settings.url;
  ajaxSettings.type = 'POST';
  ajaxSettings.data = settings.data;
  var token = this.getToken();
  var pd = Object.prototype.toString.call(settings.data) === "[object FormData]";
  if (pd) {
    /* form data */
    ajaxSettings.dataType = 'text';
    ajaxSettings.processData = false;
    ajaxSettings.contentType = false;
    ajaxSettings.data.append('token', token);
  } else {
    /* general */
    ajaxSettings.data.token = token;
  }

  ajaxSettings.success = function (reply) {
    if (ajaxResponseParse === undefined) {
      return false;
    }
    response = ajaxResponseParse(reply);
    if (!response) {
      request.onFail(reply);
      return false;
    }
    if (response.isStatusError()) {
      request.onError();
    }
    if (response.isStatusOK()) {
      request.onSuccess();
    }
    request.after();
  }
  $.ajax(ajaxSettings).done(function () {
    request.onDone();
  }).error(function (reply) {
    request.onFail(reply);
  });

}