Angular API re-attempt

retry-failed-route.js

angular
  .module('app')
  .config(function ($httpProvider) {
    $httpProvider.interceptors.push(['$injector', '$q', function ($injector, $q) {
      return {
        responseError: function (rejection) {
          var $http = $injector.get('$http'),
              $state = $injector.get('$state'),
              MAX_RETRY_ATTEMPTS = 2,
              request = rejection.config,
              response = rejection.data,
              retryDefer = $q.defer(),
              retryRequest;

          // A required API request failed.
          if (request.__required) {
            request.__retries = (request.__retries || 0) + 1;

            // Keep trying.
            if (request.__retries <= MAX_RETRY_ATTEMPTS) {
              retryRequest = $http(request)
                .success(function () {
                  retryDefer.resolve(retryRequest);
                });
            }

            // Last attempt.
            if (request.__retries > MAX_RETRY_ATTEMPTS) {
              if (response && response.message) {
                console.error(response.message);
              }

              $state.go('error');
              retryDefer.reject(rejection);
            }

            return retryDefer.promise;
          }

          return $q.reject(rejection);
        }
      };
    });

Worth noting. I'm still a promise noob.