appsettings.json

  {
    "Logging": {
      "IncludeScopes": false,
      "Debug": {
        "LogLevel": {
          "Default": "Warning"
        }
      },
      "Console": {
        "LogLevel": {
          "Default": "Warning"
        }
      }
    },
    "ConnectionStrings": {
      "DefaultConnection": "Server=(localdb)\\mssqllocaldb;Database=aspnet-Demo;Trusted_Connection=True;MultipleActiveResultSets=true"
    }
  }