// register the interceptor as a service
$provide.factory('myHttpInterceptor', function($q, dependency1, dependency2) {
 return {
  // optional method
  'request': function(config) {
   // do something on success
   return config;
  },
  // optional method
  'requestError': function(rejection) {
   // do something on error
   if (canRecover(rejection)) {
    return responseOrNewPromise
   }
   return $q.reject(rejection);
  },
  // optional method
  'response': function(response) {
   // do something on success
   return response;
  },
  // optional method
  'responseError': function(rejection) {
   // do something on error
   if (canRecover(rejection)) {
    return responseOrNewPromise
   }
   return $q.reject(rejection);
  }
 };
});
$httpProvider.interceptors.push('myHttpInterceptor');
// alternatively, register the interceptor via an anonymous factory
$httpProvider.interceptors.push(function($q, dependency1, dependency2) {
 return {
  'request': function(config) {
    // same as above
  },
  'response': function(response) {
    // same as above
  }
 };
});