我有一个工厂，用于查询定制的API我建有多个服务。回调所有的工作，但我想知道我怎么能有任何的错误处理，同时获取。

I have a factory that has multiple services for querying a custom API I built. The callbacks all work, but I'm wondering how I can have any error handling while fetching.

.factory('customApiService', function ($resource) {
      return {
          yelp: function (businessId, callback) {
              var api = $resource('../../api/Yelp/:businessId', {
                  businessId: businessId
              }, {
                  fetch: 'JSONP',
                  'query': { isArray: false }
              });

              api.fetch(function (response) {
                  callback(response);
              });
          },
          tripAdvisor: function (hotelId, callback) {
              var api = $resource('../../api/TripAdvisor/:hotelId', {
                  hotelId: hotelId
              }, {
                  fetch: 'JSONP',
                  'query': { isArray: false }
              });

              api.fetch(function (response) {
                  callback(response);
              });
          }
      }
  });

和控制器中使用此工厂的例子：

And an example of using this factory in a controller:

.controller('yelpCtrl', [
  '$scope', 'customApiService', function ($scope, customApiService) {

      customApiService.yelp("yelpIdHere", function (d) {
          //On successful callback run code
      });

      customApiService.tripAdvisor("tripAdvisorIdHere", function (d) {
          //On successful callback run code
      });
   }
])

目前，如果有任何不良反应（404，500，504等），回调将不会触发。

Currently if there is any bad response (404, 500, 504, etc), the callback is not fired.

推荐答案

不得不改变我厂返回一个errorCallback以及一个成功的回调：

Had to change my Factory to return an errorCallback as well as a successful callback:

.factory('customApiService', function ($resource) {
  return {
      yelp: function (businessId, callback, errorCallback) {
          var api = $resource('../../api/Yelp/:businessId', {
              businessId: businessId
          }, {
              fetch: 'JSONP',
              'query': { isArray: false }
          });

          api.query(function (response) {
              callback(response);
          },
          function (error) {
              errorCallback(error);
          });
      },
      tripAdvisor: function (hotelId, callback, errorCallback) {
          var api = $resource('../../api/TripAdvisor/:hotelId', {
              hotelId: hotelId
          }, {
              fetch: 'JSONP',
              'query': { isArray: false }
          });

          api.query(function (response) {
              callback(response);
          },
          function (error) {
              errorCallback(error);
          });
      }
  }
});

所以，现在在控制器中，我有第二个函数作为参数来我厂通话将处理任何错误：

So now in the controller, I have a second function as a parameter to my factory calls which will handle any errors:

.controller('yelpCtrl', [
  '$scope', 'customApiService', function ($scope, customApiService) {

      customApiService.yelp("yelpIdHere", function (d) {
          //On successful callback run code
      },
      function(e){
          //Do error handling here
      });

      customApiService.tripAdvisor("tripAdvisorIdHere", function (d) {
          //On successful callback run code
      },
      function(e){
          //Do error handling here
      });
   }
])

这个答案似乎帮助