使用CreateUploadSesssion上载文件时，服务器返回代码:InternalServerError

Question

我的应用程序通常可以通过连续上传将文件上传到OneDrive、SharePoint。目前，它已损坏，并在调用时抛出InternalServerError

var uploadSession = await graphClient.Drive.Items["01KGPRHTV6Y2GOVW7725BZO354PWSELRRZ"].ItemWithPath("_hamilton.png").CreateUploadSession().Request().PostAsync();

我执行以下操作：[https://github.com/microsoftgraph/msgraph-sdk-dotnet/blob/dev/tests/Microsoft.Graph.DotnetCore.Test/Requests/Functional/OneDriveTests.cs][1]

例外：

Status Code: InternalServerError
Microsoft.Graph.ServiceException: Code: InternalServerError
Message: Object reference not set to an instance of an object.
Inner error:
AdditionalData:
request-id: b3ab4fbb-e3c2-4e07-a353-4e2a73b5bf67
date: 3/10/2020 4:25:56 AM
ClientRequestId: b3ab4fbb-e3c2-4e07-a353-4e2a73b5bf67
at Microsoft.Graph.HttpProvider.SendAsync(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationToken cancellationToken)
at Microsoft.Graph.BaseRequest.SendRequestAsync(Object serializableObject, CancellationToken cancellationToken, HttpCompletionOption completionOption)
at Microsoft.Graph.BaseRequest.SendAsync[T](Object serializableObject, CancellationToken cancellationToken, HttpCompletionOption completionOption)

SDK：Microsoft.Graph 1.21.0

Answer 1

我们也遇到了同样的问题，但似乎这是Graph API的问题，今天(2020-03-10(可能发生了变化。有人在上提交了github问题https://github.com/microsoftgraph/msgraph-sdk-dotnet/issues/646你可以遵循，但如果你真的必须这样做，你可以通过使用反射覆盖请求url来绕过它。

var regex = new Regex(@"/microsoft.graph.createUploadSession$");
var reqUrl = uploadSessionReq.RequestUrl;
typeof(DriveItemCreateUploadSessionRequest)
.GetProperty(nameof(DriveItemCreateUploadSessionRequest.RequestUrl))
.GetSetMethod(nonPublic: true)
.Invoke(
uploadSessionReq,
new[]
{
regex.Replace(reqUrl, "/createUploadSession")
}
);