appsettings.json

{
  "ConnectionStrings": {    
    "DefaultConnection": "Data Source=HOST\\SQLEXPRESS;Initial Catalog=DbBooksCat;User ID=user;Password=YourPaasowrd;",    
    "AzureConnection": "Server=tcp:sqlserver.database.windows.net,1433;Initial Catalog=booksdb;Persist Security Info=False;User ID=admin;Password=YourPassword;MultipleActiveResultSets=False;Encrypt=True;TrustServerCertificate=False;Connection Timeout=30;"    
  },
  "Logging": {
    "IncludeScopes": false,
    "Debug": {
      "LogLevel": {
        "Default": "Debug"
      }
    }
  }
}