【发布时间】：2015-11-27 03:20:02
【问题描述】：
我正在试用 Azure 移动应用和最近发布的 SDK https://azure.microsoft.com/en-us/blog/azure-mobile-apps-november-2015-update/
我创建了服务，启动 Todo 应用程序运行良好。然后我添加了 facebook 身份验证，这也有效。我还想从服务中获取一些额外的 FB 信息，所以基于解决方案和 github 上的示例应用程序，我添加了一个新的 api
服务器端代码
public class AuthenticationController : ApiController
{
[Authorize]
public async Task<JObject> GetIdentity()
{
FacebookCredentials fb = await this.User.GetAppServiceIdentityAsync<FacebookCredentials>(this.Request);
var result = new JObject();
if (fb != null)
{
var accessToken = fb.AccessToken;
result.Add("facebook", await GetProviderInfo("https://graph.facebook.com/me?access_token=" + accessToken));
}
return result;
}
private async Task<JToken> GetProviderInfo(string url)
{
var c = new HttpClient();
var resp = await c.GetAsync(url);
resp.EnsureSuccessStatusCode();
return JToken.Parse(await resp.Content.ReadAsStringAsync());
}
}
Android 项目中的客户端代码
var user = await TodoItemManager.Instance.ClientInstance.LoginAsync(Forms.Context, MobileServiceAuthenticationProvider.Facebook);
var info = await TodoItemManager.Instance.ClientInstance.InvokeApiAsync("GetIdentity", null, HttpMethod.Get, null);
LoginAsync 成功，我得到了 UserId 和 Token，但 InvokeApiAsync 失败并出现以下异常
Microsoft.WindowsAzure.MobileServices.MobileServiceInvalidOperationException: The resource you are looking for has been removed, had its name changed, or is temporarily unavailable.
at Microsoft.WindowsAzure.MobileServices.MobileServiceHttpClient+<ThrowInvalidResponse>d__18.MoveNext () [0x0022f] in <filename unknown>:0
--- End of stack trace from previous location where exception was thrown ---
11-26 19:09:10.897 I/mono-stdout( 3514): at Microsoft.WindowsAzure.MobileServices.MobileServiceHttpClient+<ThrowInvalidResponse>d__18.MoveNext () [0x0022f] in <filename unknown>:0
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /Users/builder/data/lanes/2098/3efa14c4/source/mono/external/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:143
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x00047] in /Users/builder/data/lanes/2098/3efa14c4/source/mono/external/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:201
11-26 19:09:10.898 I/mono-stdout( 3514): --- End of stack trace from previous location where exception was thrown ---
11-26 19:09:10.898 I/mono-stdout( 3514): at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /Users/builder/data/lanes/2098/3efa14c4/source/mono/external/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:143
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x0002e] in /Users/builder/data/lanes/2098/3efa14c4/source/mono/external/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:170
11-26 19:09:10.899 I/mono-stdout( 3514): at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x00047] in /Users/builder/data/lanes/2098/3efa14c4/source/mono/external/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:201
11-26 19:09:10.900 I/mono-stdout( 3514): at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x0002e] in /Users/builder/data/lanes/2098/3efa14c4/source/mono/external/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:170
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x0000b] in /Users/builder/data/lanes/2098/3efa14c4/source/mono/external/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:142
at System.Runtime.CompilerServices.TaskAwaiter.GetResult () [0x00000] in /Users/builder/data/lanes/2098/3efa14c4/source/mono/external/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:124
at Microsoft.WindowsAzure.MobileServices.MobileServiceHttpClient+<SendRequestAsync>d__1d.MoveNext () [0x0010d] in <filename unknown>:0
我错过了什么或做错了什么？ 提前谢谢..
【问题讨论】：
-
请只发布相关代码，不要链接到外部代码源。另外，请正确格式化错误信息。
-
我认为当您调用 "GetIdentity" 时可能会丢失身份验证标头。您可以使用 Fiddler 来检查该值吗？我认为您可以将 Fiddler 配置为您的 Android 模拟器的代理。你的控制器上有
[MobileAppController]属性吗？ -
要确认您是否缺少http请求标头上的身份验证令牌，您可以从`GetIdentity()`方法中删除
[Authorize]，然后重新部署您的服务，看看是否有相同的错误或其他错误。 -
您在
GetProviderInfo()方法上有问题吗？你设置了什么权限？您可以使用“Graph API Explorer”developers.facebook.com/tools/explorer 生成具有您选择的权限的令牌。然后您可以使用该令牌测试您的代码。 -
嘿迈克尔，感谢您的建议。我在控制器上有
[MobileAppController]属性。我什至尝试删除所有身份验证。基本上创建了一个新服务并添加了一个新的ApiController和一个GetIdentity方法，它只返回一个字符串并得到相同的The resource you are looking for has been removed, had its name changed, or is temporarily unavailable.错误。提琴手也没有太多运气。我通过提琴手代理了我的安卓设备。我看到所有应用程序的痕迹。但没有看到任何移动应用程序。
标签： azure azure-mobile-services