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 /api/SalesForce/CancelInvoiceCollection HTTP/1.1
Host: devapi.billhighway.com
Accept: text/csv
Content-Type: text/csv
Content-Length: length
{"CancelInvoiceCollection":[{"ClassName":"String","UniqueId":"String","CreatedDateTime":"0001-01-01T00:00:00.0000000","ClientId":0,"GroupId":"String","OpportunityId":"String","InvoiceNumber":"String","CancelledBy":"String","CancelReason":"String","Notes":"String"}]}
HTTP/1.1 200 OK
Content-Type: text/csv
Content-Length: length
{"CancelInvoiceReply":[{"ClassName":"String","UniqueId":"String","CreatedDateTime":"0001-01-01T00:00:00.0000000","ClientId":0,"ErrorCode":0,"ErrorMessage":"String","InvoiceNumber":"String","IsError":false}],"IsError":false}