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 /echo/types HTTP/1.1
Host: test.servicestack.net
Accept: application/xml
Content-Type: application/xml
Content-Length: length
<EchoTypes xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/Test.ServiceInterface">
<Byte>0</Byte>
<Char>0</Char>
<DateTime>0001-01-01T00:00:00</DateTime>
<DateTimeOffset xmlns:d2p1="http://schemas.datacontract.org/2004/07/System">
<d2p1:DateTime>0001-01-01T00:00:00Z</d2p1:DateTime>
<d2p1:OffsetMinutes>0</d2p1:OffsetMinutes>
</DateTimeOffset>
<Decimal>0</Decimal>
<Double>0</Double>
<Float>0</Float>
<Guid>00000000-0000-0000-0000-000000000000</Guid>
<Int>0</Int>
<Long>0</Long>
<Short>0</Short>
<String>String</String>
<TimeSpan>PT0S</TimeSpan>
<UInt>0</UInt>
<ULong>0</ULong>
<UShort>0</UShort>
</EchoTypes>
HTTP/1.1 200 OK
Content-Type: application/xml
Content-Length: length
<EchoTypes xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/Test.ServiceInterface">
<Byte>0</Byte>
<Char>0</Char>
<DateTime>0001-01-01T00:00:00</DateTime>
<DateTimeOffset xmlns:d2p1="http://schemas.datacontract.org/2004/07/System">
<d2p1:DateTime>0001-01-01T00:00:00Z</d2p1:DateTime>
<d2p1:OffsetMinutes>0</d2p1:OffsetMinutes>
</DateTimeOffset>
<Decimal>0</Decimal>
<Double>0</Double>
<Float>0</Float>
<Guid>00000000-0000-0000-0000-000000000000</Guid>
<Int>0</Int>
<Long>0</Long>
<Short>0</Short>
<String>String</String>
<TimeSpan>PT0S</TimeSpan>
<UInt>0</UInt>
<ULong>0</ULong>
<UShort>0</UShort>
</EchoTypes>