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.
GET /invoices/billingTypes HTTP/1.1
Host: devapi.billhighway.com
Accept: application/xml
HTTP/1.1 200 OK
Content-Type: application/xml
Content-Length: length
<BillingTypeListResponse xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/BH.CloudAPI.DTO">
<Results>
<BillingTypeListItem>
<BillingTypeID>0</BillingTypeID>
<BillingTypeName>String</BillingTypeName>
<IsPrimary>false</IsPrimary>
</BillingTypeListItem>
</Results>
</BillingTypeListResponse>