NewAuthHandler creates a new AuthHandler instance.

NewCategoryHandler creates a new CategoryHandler instance.

NewOrderHandler creates a new OrderHandler instance.

NewPaymentHandler creates a new PaymentHandler instance.

NewProductHandler creates a new ProductHandler instance.

NewRouter creates a new HTTP router.

NewUserHandler creates a new UserHandler instance.

AuthHandler represents the HTTP handler for authentication-related requests.

CategoryHandler represents the HTTP handler for category-related requests.

OrderHandler represents the HTTP handler for order-related requests.

PaymentHandler represents the HTTP handler for payment-related requests.

ProductHandler represents the HTTP handler for product-related requests.

Router is a wrapper for HTTP router.

UserHandler represents the HTTP handler for user-related requests.