ASP.NET Core MVC使用现有数据库进行身份验证

I'm about to implement a web application (back office for an existing app.) using the ASP.NET Core framework. At the moment I'm thinking about on how will I authenticate the user. The main database is using MySQL (not supported on this framework), so I will access the database troughout an existing PHP SOAP API.I'm about to implement a web application (back