To override the Content-type in your clients, use the HTTP Accept Header, append the .csv suffix or ?format=csv
HTTP + CSV
The following are sample HTTP requests and responses.
The placeholders shown need to be replaced with actual values.
POST /csv/reply/GetJsonPicklistItems HTTP/1.1
Host: buildmax.org
Accept: text/csv
Content-Type: text/csv
Content-Length: length
{"TemplateGuid":"String","Guid":"String"}
HTTP/1.1 200 OK
Content-Type: text/csv
Content-Length: length
{Unable to show example output for type 'JsonPicklistItemsResponse' using the custom 'csv' filter}No parameterless constructor defined for this object.