How do you change the SOAP Envelope schema in WCF?

Question

I am connecting to a third-party end point via WCF and I have one problem. The schema for the SOAP envelope that is generated by WCF isn't compatible with the end point.

Currently WCF is generating this:

<s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:a="http://www.w3.org/2005/08/addressing">

But it needs to be this:

<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" xmlns:a="http://www.w3.org/2005/08/addressing">

I've tested this in soapUI to confirm this is the problem, but how can I control this in WCF? I used the Add Service Reference option in Visual Studio to generate the service.

Any ideas?

Thanks in advance.

Andy

Answer 1

Most likely, you have an issue with the SOAP version. What binding are you using??

basicHttpBinding defaults to SOAP 1.1, while wsHttpBinding defaults to SOAP 1.2

This is SOAP 1.1 (default in basicHttpBinding):

<SOAP-ENV:Envelope
  xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
  SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">

while this is SOAP 1.2 (default in wsHttpBinding):

<env:Envelope xmlns:env="http://www.w3.org/2003/05/soap-envelope">

Possible solutions:

1) either you can just switch bindings and that's all there is - you need to make sure to check for security settings and so on (which differ between basic and wsHttpBinding)

or

2) you need to create your own custom binding and explicitly specify the SOAP version you need