Merging api specs/different middleware's for different apis with same OpenAPI Specificaton

[avucic]

I found this issue: #714

Following docs there is no OpenApiService::new_with_spec method. Is the example still up to date?

I would like to have separate Api's with different middleware's, for example public and auth endpoints but single OpenAPI specifications:

I saw combined-apis example:

    let api_service = OpenApiService::new((Api1, Api2, Api3), "Combined APIs", "1.0")
        .server("http://localhost:3000/api");

But I can't figure-out how to have this and for example Auth middleware for Api1?