ReadAsStreamAsync doesn't return? RSS

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  Kevin Burton

  Member

  79 Points

  66 Posts

  ReadAsStreamAsync doesn't return?

  Mar 21, 2012 04:42 PM|LINK

  I have a POST method in my controller that looks like:

          public HttpResponseMessage<SubmitFeedResponse> Post(AmazonEnvelope envelope)
  

  The AmazonEnvelope is an object that is deserialized from the POST content. Inside this controller I would like to read the content again so I start a task:

  Task contentTask = this.ControllerContext.Request.Content.ReadAsStreamAsync().ContinueWith(a =>
                  {

  But I set a breakpoint and it appears that this task never returns. I never break into the 'ContinueWith' part. I have also tried this without attaching the debugger to w3wp.exe but I get the same results on the client, namely an 'InternalServerError'. Would there be a reason that I cannot read this content twice? Can I change (should I) the signature like?

          public HttpResponseMessage<SubmitFeedResponse> Post() 

  Any suggestions as to why this is not working and what I may have misunderstood?

  Thank you.

  Kevin Burton
  
  
  rkevinburton@charter.net
  
  
  kevin_burton@baxter.com
  
  
  
  • Edited by Kevin Burton on Mar 21, 2012 04:42 PM
  • Edited by Kevin Burton on Mar 21, 2012 04:44 PM
• • Reply
  

  Kiran Challa

  Participant

  1442 Points

  281 Posts

  Microsoft

  Re: ReadAsStreamAsync doesn't return?

  Mar 21, 2012 04:55 PM|LINK

  Assuming you are using the ReadContentPolicy as SingleObject, the ModelBinding step uses the formatters to deserialize the request's content in order to build the Action's parameters.

  In this case, the model binding uses the formatters to populate the 'envelope' parameter of the Post method. 

  Our default formatters currently close the request stream after reading it. This is a known issue that we are planning to fix for the next release.

  Thanks,
  Kiran Challa
  • Marked as answer by Kevin Burton on Mar 21, 2012 04:57 PM