ProducesResponseType Type return for empty return

Question

What is the typeof return to indicate there is empty body return. For example 401 unauthorized returns no body response except 401 status code. [ProducesResponseType(StatusCodes.Status401Unauthorized)) is showing returning the following in swagger example

{
  "type": "string",
  "title": "string",
  "status": 0,
  "detail": "string",
  "instance": "string",
  "additionalProp1": {},
  "additionalProp2": {},
  "additionalProp3": {}
}

Answer 1

I know I'm late to the party on this one, but you can add typeof(void) to the ProducesResponseType like so:

[ProducesResponseType(typeof(void), StatusCodes.Status401Unauthorized)]

This worked for me and is no longer showing a response body in Swagger.