BizTalk WCF-WebHttp Custom Headers per message

Question

Hi,
I have a requirement to connect to a service using the WCF-WebHTTP adapter that requires add custom http Header "X-Auth: <Value varies for messageType>" per message.
So am using dynamic Request-Response port to set HTTPHeaders dynamically per message. I am using following code to assign HttpHeaders in Message Assignment Shape.
Msg_CogSrvReq(WCF.HttpHeaders)="X-Auth: "+<value that extracted from a another service>;
However while testing these, am getting an error "X-Auth header not found in request" from the service.
Why this HttpHeader not passing to the service while requesting? Is am missing anything?
Thanks,
Praveen
Praveen

Answer 1

Hi Praveen,
I have seen this issue where when you try to set the HTTPHeader properties, the WCF-WebHTTP adapter
ignores it and the outgoing message always goes without the custom HTTPHeader that’s been set in Orchestration.
We had a similar situation like yours where I had to set a GUID as one of the properties in the HTTPHeader and needed to use WCF-WebHTTP
adapter. Also if you use a static adapter and configure the properties, different GUIDs would not get generated per message instance, this is due to the way adapter initialize the message instances. So the only solution is to have dynamic GUID per message
instance is using the dynamic port as you do.
And for setting the dynamic HTTPHeader properties with WCF-WebHTTP adapter,
I used a custom pipeline component with a code as below. Though you have the dynamic send port, your dynamic port need to have pipeline configured, in this case you can use a custom pipeline with a component in it will following code:
public Microsoft.BizTalk.Message.Interop.IBaseMessage Execute(IPipelineContext pContext, Microsoft.BizTalk.Message.Interop.IBaseMessage pInMsg)
pInMsg.Context.Write("HttpHeaders", "http://schemas.microsoft.com/BizTalk/2006/01/Adapters/WCF-properties", "X-Auth: "+<value that extracted from a another service>);
return pInMsg;
Check the following article in this context:
http://www.codit.eu/blog/2013/04/30/using-httpheaders-with-wcf-webhttp-adapter-on-biztalk-2013/
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