使用REST API将文件上传到Onedrive

Question

我正尝试使用其REST API将文件上传到OneDrive。这就是我要完成的基础上提供的文档在OneDrive Rest API：

POST https://apis.live.net/v5.0/me/skydrive/files?access_token=ACCESS_TOKEN 
Content-Type: multipart/form-data; boundary=A300x 

--A300x 
Content-Disposition: form-data; name="file"; filename="HelloWorld.txt" 
Content-Type: application/octet-stream 

Hello, World! 
--A300x-- 

这是我有：

Uri destination = new Uri(string.Format("https://apis.live.net/v5.0/{0}/files?", folder.ID)); 

BackgroundUploader uploader = new BackgroundUploader(); 
uploader.SetRequestHeader("Authorization", "Bearer " + account.AccessToken); 
uploader.SetRequestHeader("Content-Type", "multipart/form-data; boundary=\"foo_bar_baz\""); 

List<BackgroundTransferContentPart> parts = new List<BackgroundTransferContentPart>(); 

BackgroundTransferContentPart metaDataPart = new BackgroundTransferContentPart(); 
metaDataPart.SetHeader("Content-Disposition", "form-data; name=\"file\";filename=\""+content.Name+"\""); 
parts.Add(metaDataPart); 

BackgroundTransferContentPart contentPart = new BackgroundTransferContentPart(); 
contentPart.SetHeader("Content-Type", content.ContentType); 
// content is a StorageFile 
contentPart.SetFile(content); 

response.UploadOperation = await uploader.CreateUploadAsync(destination, parts, "form-data", "foo_bar_baz"); 

这条线之下会导致访问冲突错误和Windows应用商店应用程序崩溃：

response.UploadOperation = await uploader.CreateUploadAsync(destination, parts, "form-data", "foo_bar_baz"); 

Answer 1

您正在创建两个BackgroundTransferContentPart，只将拳头加入你的'列表'。

我想你只需要一个，像这样：

List<BackgroundTransferContentPart> parts = new List<BackgroundTransferContentPart>(); 

BackgroundTransferContentPart metaDataPart = new BackgroundTransferContentPart(); 
metaDataPart.SetHeader("Content-Disposition", 
    "form-data; name=\"file\";filename=\"" + content.Name + "\""); 
metaDataPart.SetHeader("Content-Type", content.ContentType); 
metaDataPart.SetFile(content); 
parts.Add(metaDataPart); 

UPDATE：好了，上面的代码固定的访问冲突问题。为什么你是getting a 400 error is a mystery。

但另一种方式来上传文件到OneDrive使用PUT方法：

Uri putUri = new Uri(string.Format("https://apis.live.net/v5.0/{0}/files/{1}", 
    "folder.a4fb14adbccd1917.A4FB14ADBCCD1917!32089", 
    content.Name)); 

BackgroundUploader uploader = new BackgroundUploader(); 
uploader.SetRequestHeader("Authorization", "Bearer " + accessToken); 
uploader.Method = "PUT"; 

UploadOperation putOperation = uploader.CreateUpload(putUri, content); 
await putOperation.StartAsync(); 

你试过PUT？