与角度抛出错误Http请求服务

我试图写一个服务，使一个HTTP请求到我的路线（的NodeJS）将用户添加到数据库。

I am trying to write a service that makes a http request to my route (NodeJs) to add a user to the db.

如果我只是把它写在它的工作原理控制器但你不会看到，直到我刷新浏览器用户说：

If I just write it in the controller it works but then you won't see the user added until I refresh the browser:

我的code控制器：

//Function to add a user to the db
$scope.inviteUser = function(){
    $http.post('/api/users/invite', {
        'email': $scope.user.email,
        'role_id': $scope.user.role
    }, {
        headers: {
            "Content-Type": "text/plain"
        }
    })
    .success(function(data, status, headers, config) {
        console.log("Successfully saved a user to the DB", data);

        $scope.userInfo.push(data);


    })
    .error(function(data, status, headers, config) {
        console.log("Failed to add user to DB");
    });
}

我需要在服务的原因是因为人们对堆栈告诉我，这将解决我目前面临的是当用户添加你不会看到它，直到刷新浏览器的问题。这是因为我有一个按钮，以便邀请，当你点击它弹出显示（MD-对话框 - >角材料）。这个对话框有自己的tmple.html文件。在邀请按钮所在的视图是在$ scope.userInfo挂（在函数中定义inviteUser - 从上面code）

The reason I need it in a service is because people on stack told me that it would resolve the issue that I am currently facing that is when a user is added you won't see it until the browser is refreshed. This is because I have a view with a button invite and when you click on it a popup shows (md-dialog -> angular material). This dialog has its own tmple.html file. In the view where the invite button resides is the $scope.userInfo linked to (defined in the function inviteUser - code from above)

code与邀请按钮，当用户被添加列表视图：

Code for the view with the invite button and the list where the user get added:

<div id="sidebar" class="md-whiteframe-z4" ng-data-color="">
      <div style="height: 80px;"></div>
      <div class="userList">
        <li id="customLI" ng-repeat="user in userInfo" id="userPos" class="circular md-whiteframe-z2" style="background-color: {{ user.color }} " ng-click=" showPopUpDeletionConfirmation(); setDeleteId( user._id )" ng-data-id="{{ user._id }} ">
          <p class="initials" id="userValue" style="top: {{ user.top }};" >
              <custom id="user._id"></custom>
              {{user.initials}}
          </p>
        <md-tooltip>
        <!-- Delete this user -->  {{user.name}}
        </md-tooltip>
        </li>
      </div>
    </div>

对话框code：

Code of the dialog box :

  <md-dialog aria-label="" ng-controller="CalendarCtrl">
    <form name="form"  >
      <md-toolbar>
        <div class="md-toolbar-tools">
          <h1 class="customH1">Invite a user</h1>

          <span flex></span>
          <!-- <md-button class="md-icon-button" ng-click="closeDialog()">
            <md-icon md-svg-src="images/ic_close_24px.svg" aria-label="Close dialog"></md-icon>
          </md-button> -->
        </div>
      </md-toolbar>
      <md-dialog-content>
        <div id="containerForm">
            <div layout="row">
              <md-input-container flex="">
                <div class="form-group" ng-class="{ 'has-success': form.email.$valid && submitted,'has-error': form.email.$invalid && submitted }">
                  <label>Enter the user's e-mail</label>
                  <input type="email" name="email" id="to" class="form-control" ng-model="user.email" required mongoose-error/>
                  <p class="help-block" ng-show="form.email.$error.email && submitted">
                    Doesn't look like a valid email.
                  </p>
                  <p class="help-block" ng-show="form.email.$error.required && submitted">
                    What's your email address?
                  </p>
                  <p class="help-block" ng-show="form.email.$error.mongoose">
                    {{ errors.email }}
                  </p>
                </div>
              </md-input-container>
            </div>  

            <br /><br />

            <div ng-show="form.email.$dirty && form.email.$valid">
              <h5>Assign one of the following role's:</h5>

              <div id="wrapperRadioButtons">
                <md-radio-group ng-model="user.role">
                  <md-radio-button ng-repeat="userrole in roleInfo" value="{{userrole.id}}" class="md-primary">{{userrole.role}}</md-radio-button>
                </md-radio-group>
              </div>
              </div>

            <br />

        </div>
      </md-dialog-content>
      <div class="md-actions" layout="row" >
        <md-button ng-click="closeDialog()" class="md-primary">Cancel</md-button>

        <md-button id="send_email" ng-click="inviteUser(); closeDialog()" class="md-primary">Invite</md-button>
      </div>
    </form>
  </md-dialog>

这是我写的，并试图链接到功能inviteUsers服务：

This is the service I wrote and tried to link to the function inviteUsers:

zazzleApp.factory('UserService', ['$q', '$http', function ($q, $http) {
            var service = {};

            service.get = function() {
              var deferred = $q.defer();

              deferred.resolve(service.data);
              return deferred.promise;
            }

            service.save = function(data) {
                var promise = $http({
                    method: 'POST',
                    url: 'api/users/invite'
                })

                var deferred = $q.defer();

                service.data.push(data);
                deferred.resolve();
                return deferred.promise;
            }

            return service;
        }
    ]);

我的控制器部分：

Part of my controller:

angular.module('zazzleToolPlannerApp')
    .controller('CalendarCtrl', function ($scope, $mdDialog, $http, $rootScope, $timeout, User, Auth, UserService) {

        //Function to add a user to the db
        $scope.inviteUser = function(){

           var obj = {
                'email': $scope.user.email,
                'role_id': $scope.user.role
           };
           UserService.save(obj).then(function(){
                $scope.getUsers();

           })
        }
});

现在，当我尝试添加一个用户我得到了我的控制台错误 - > https://gyazo.com/34b39d7eda18b8afd9ef11094b4f429a

Now when I try to add a user I get an error in my console -> https://gyazo.com/34b39d7eda18b8afd9ef11094b4f429a

所以基本上我问的是如何写一个服务，使HTTP请求并将其链接到一个控制器....

So basically what I am asking is how to write a service that makes an http request and link it to a controller ....

附注：我之前，所以这就是为什么它可能不工作也从来没有这样做。

Side note: I have never done this before so thats why its probably not working.