How can I specify the default Media Type for the Swagger in ASP.NET Core 3.1?

Question

How can I specify the default Media Type for the Swagger in ASP.NET Core 3.1?

E.g. I have three choices of the Media Type. And I want the default to be application/json, and not the text/plain. How can I do that?

Answer 1

Add the attribute to your api controller:

 [Produces("application/json")]