backand - 如果通过 API 创建，Backand 用户对象不与自定义用户对象关联

Question

我创建了一个我知道与 backand 的用户对象相关联的自定义“用户”对象。但是，当我使用 Backand 的 SDK 从我的应用程序创建它们时，我可以看到在 Backand 的注册用户中创建了用户，但在我的自定义对象“用户”中没有

Answer 1

这似乎是一个权限问题。也没有很好的记录。如果您的匿名访问设置为（只读）并且您从“创建我的应用程序用户”服务器端 javascript 中删除了 try catch 语句，您将在客户端中收到 401 错误。将匿名访问设置为公开，它首先尝试。可能有更好的方法来做到这一点，但我仍在研究它我不想给匿名用户那么多的访问权限。但它肯定证明这是权限问题。

Answer 2

确保您在 Security & Auth 中具有以下安全操作，并且它们的条件设置为 true：事件 - 创建期间，名称 - 创建我的应用用户代码：

/* globals
$http - Service for AJAX calls 
CONSTS - CONSTS.apiUrl for Backands API URL
Config - Global Configuration
*/
'use strict';
function backandCallback(userInput, dbRow, parameters, userProfile) {

   // When a new user registers, add her to the users object. 
   // If you are using a different object for your users then change this action accordingly. 
   if (parameters.sync)
      return {};
   if (!parameters)
      parameters = {};
   parameters.email = userInput.Username;
   parameters.firstName = userInput.FirstName;
   parameters.lastName = userInput.LastName;
   try{
   var response = $http({
      method: "POST",
      url:CONSTS.apiUrl + "/1/objects/users",
      params: {parameters: {"sync": true}},
      data: parameters,
      headers: {"Authorization": userProfile.token}
   });
}
catch(err) {
   // register user even if there is an error or no users object 
}
   return {};
}

事件 - 更新期间，名称 - 更新我的应用用户代码：

/* globals
$http - Service for AJAX calls 
CONSTS - CONSTS.apiUrl for Backands API URL
Config - Global Configuration
*/
'use strict';
function backandCallback(userInput, dbRow, parameters, userProfile) {

   // When a registered user is changed, change your users object as well. 
   // If you are using a different object for your users then change this action accordingly. 

   // Get the user id by the user's email
   var currentUser = $http({
      method: "GET",
      url:CONSTS.apiUrl + "/1/objects/users",
      params: {filter:[{"fieldName":"email", "operator":"equals", "value": userInput.Username }]},
      headers: {"Authorization": userProfile.token}
   });
   if (currentUser.data.length == 1) { 
      var currentUserId = currentUser.data[0].__metadata.id; 
      var response = $http({
         method: "PUT",
         url:CONSTS.apiUrl + "/1/objects/users/" + currentUserId + "",
         params: {},
         data: {"firstName": userInput.FirstName, "lastName": userInput.LastName },
         headers: {"Authorization": userProfile.token}
      });
   } 

   return {};
}

事件 - 删除期间，名称 - 删除我的应用用户代码：

/* globals
$http - Service for AJAX calls 
CONSTS - CONSTS.apiUrl for Backands API URL
Config - Global Configuration
*/
'use strict';
function backandCallback(userInput, dbRow, parameters, userProfile) {

   // When a registered user name is deleted, delete her from your users object as well. 
   // If you are using a different object for your users then change this action accordingly. 

   // Get the user id by the user's email
   var currentUser = $http({
      method: "GET",
      url:CONSTS.apiUrl + "/1/objects/users",
      params: {filter:[{"fieldName":"email", "operator":"equals", "value": dbRow.Username }]},
      headers: {"Authorization": userProfile.token}
   });
   if (currentUser.data.length == 1) { 
      var currentUserId = currentUser.data[0].__metadata.id; 
      var response = $http({
         method: "DELETE",
         url:CONSTS.apiUrl + "/1/objects/users/" + currentUserId + "",
         params: {},
         headers: {"Authorization": userProfile.token}
      });
   } 

   return {};
}