ASP.Net Core Web API uniform response format?

Question

ASP.NET

Actually the question is in the title.
What I want: a unified response format from the API like VK.
For successful results, the response format is approximately the following:

{
    "response": {
        "count": 2,
        "items": [
            1,
            2,
        ]
    }
}

And for errors, something like this format:

{
    "error": {
        "error_code": 5,
        "error_msg": "User authorization failed: invalid access_token (4)."
    }
}

I would like the responses to be formed on their own (so that I, for example, return IEnumerable from the controller, and the response is as above in the example), and not through the controller and the return type of the methods (public MyResponse<> Foo()).

Answer 1

https://vmsdurano.com/asp-net-core-and-web-api-ac...