To override the Content-type in your clients, use the HTTP Accept Header, append the .xml suffix or ?format=xml
HTTP + XML
The following are sample HTTP requests and responses.
The placeholders shown need to be replaced with actual values.
POST /hellotypes/{Name} HTTP/1.1
Host: test.servicestack.net
Accept: application/xml
Content-Type: application/xml
Content-Length: length
<HelloTypes xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/Test.ServiceModel">
<Bool>false</Bool>
<Int>0</Int>
<String>String</String>
</HelloTypes>
HTTP/1.1 200 OK
Content-Type: application/xml
Content-Length: length
<HelloTypes xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/Test.ServiceModel">
<Bool>false</Bool>
<Int>0</Int>
<String>String</String>
</HelloTypes>