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.
PUT /RestApi/lists-api/items HTTP/1.1
Host: www.imglobal.com
Accept: text/csv
Content-Type: text/csv
Content-Length: length
{"Ids":["00000000-0000-0000-0000-000000000000"],"Provider":"String"}
HTTP/1.1 200 OK
Content-Type: text/csv
Content-Length: length
{"TotalCount":0,"IsGeneric":false,"Items":[]}