validator

type Config struct {
	// QueueName identifies the queue this request belongs to.
	QueueName string
}

type Factory interface {
	// For returns the Validator for the given config. Returning nil indicates
	// no custom validation is needed for this config.
	For(cfg Config) (Validator, error)
}

type Validator interface {
	// Validate runs custom validation on the request.
	// Returns nil if validation passes, error if the request should be rejected.
	Validate(ctx context.Context, request entity.Request) error
}