WCF Chunking / Streaming

Question

I\'m using WCF and want to upload a large file from the client to the server. I have investigated and decided to follow the chunking approach outlined at http://msdn.microsoft.c

Answer 1

You could make your service session-ful and have an initialization method in the contract with the IsInitiating property set to true. Something like:

[OperationContract(IsInitiating = true)]
void InitializeUploadService(string filename);

[OperationContract(IsOneWay = true, IsInitiating = false)]
[ChunkingBehavior(ChunkingAppliesTo.InMessage)]
void UploadStream(Stream stream);

I have never tried it with streaming services but it should basically make WCF enforce that InitializeUploadService is always called before UploadStream.

More documentation can be found here: http://msdn.microsoft.com/en-us/library/system.servicemodel.description.operationdescription.isinitiating.aspx