Restrict accepted Media Types in ASP.NET Core Controller action

Question

I have an ASP.NET Core Service that produces both JSON and XML responses. However, I like to restrict the accepted Media Type for only one action, so Swagger can only list a

Answer 1

You can use the annotations Consumes and Produces. These are also picked up by Swashbuckle. Like so:

[HttpGet]
[Consumes("application/xml")]
[Produces("application/xml")]
public IEnumerable<string> Get()
{
    return new string[] { "value1", "value2" };
}