Add option sto disable json and yaml API definition serving

[wiliamsouza]

Is there an existing issue that is already proposing this?

• [X] I have searched the existing issues

Is your feature request related to a problem? Please describe it

There is no way to disable json and yaml API definition endpoints.

Describe the solution you'd like

An option like exist for enable or disable swagger UI.

Teachability, documentation, adoption, migration strategy

Some times you do not want to make your API public available for any reason.

What is the motivation / use case for changing the behavior?

I need to create a work around to disable those endpoint:

  const enable = false;

  SwaggerModule.setup("api", app, swaggerDocument(app), {
    swaggerUiEnabled: enable,
    patchDocumentOnRequest: (_req, _res, document) => {
      if (enable) {
        return document;
      }
      return {
        openapi: "3.0.0",
        info: {
          title: "You shall not pass! Just kidding, not found ;D",
          version: "1.0",
        },
        paths: {},
      };
    }
  });

[kamilmysliwiec]

Would you like to create a PR for this issue?