Error uploading files to Google Drive using WCF service in .NET

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1

I’m working on a .NET application that uploads documents to Google Drive through a WCF service. My service method receives three parameters: access token, refresh token, and expiry time.

I use these parameters to create the authenticator and drive service with the Google Drive .NET SDK. However, when I try to upload a file, I keep getting this error:

You must provide a request body if you set ContentLength>0 or SendChunked==true. Do this by calling [Begin]GetRequestStream before [Begin]GetResponse.

I’m not sure what’s causing this issue. Has anyone encountered this problem before? Any suggestions on how to fix it would be appreciated.

2

i faced that a bit ago too. one thng you might wanna check is if the stream you’re uploading is actually having data. Also, don’t forget to ensure the type of upload is consistent – mixin them can lead to the errors like that.

3

This usually happens when your content length headers don’t match the actual request stream. I hit the same issue doing Google Drive uploads in WCF. The problem was my stream position wasn’t reset to zero before uploading. Make sure you’re calling stream.Position = 0 or stream.Seek(0, SeekOrigin.Begin) before passing it to the upload method. Also check that you’re disposing streams properly and not closing them too early. And verify you’ve got the right media type in your upload request - wrong MIME types can cause this error too.

4

I hit this same issue when uploading to Google Drive through WCF. The problem was how authentication credentials got passed between client and service. Google Drive API doesn’t play nice with token serialization across WCF service boundaries. Here’s what worked for me: recreate the GoogleCredential object inside the service method instead of passing auth objects directly. Use GoogleCredential.FromAccessToken() with just the access token parameter right in your WCF method. Also check your WCF binding config - file uploads often hit the default message size limits. WCF’s chunked transfer encoding can mess with how Google’s client library handles uploads too.