public ProductsController(EntityFrameworkSqlServerContext productsDbContext)
 {
     _productsDbContext = productsDbContext;
 }
 public MessagesController(EntityFrameworkSqlServerContext MessagesDbContext, ILogger <MessagesController> logger)
 {
     _MessagesDbContext = MessagesDbContext ?? throw new ArgumentNullException(nameof(MessagesDbContext));
     _logger            = logger ?? throw new ArgumentNullException(nameof(logger));
 }