The WCF-WebHttp adapter adds support for specific context properties to handle REST-based messages using the verbs GET, POST, PUT and DELETE. However, the underlying technology is still WCF, as most of the properties are similar to the other WCF adapters available in BizTalk.
There are several new context properties specifically to handle REST. For a complete list of all the properties, refer to the following link: http://msdn.microsoft.com/en-us/library/wcf(v=bts.80).aspx.
When using a standard send port, you cannot update the
HttpHeader properties as the adapter uses the properties on the port by design. To get around this issue, set the
BTS.IsDynamicSend context property to true on an outbound message, then ...