return a pointer to a custom error for simplicity
return a pointer to a custom error for simplicity

Clever/shorty,schimmy/shorty,schimmy/easy-url-shortener,schimmy/easy-url-shortener,schimmy/easy-url-shortener,schimmy/shorty,Clever/shorty,schimmy/easy-url-shortener,Clever/shorty,Clever/shorty,schimmy/shorty,schimmy/shorty