How to Cope With an Error Code

Each of these methods have some defined meanings and the specification says that if something goes wrong, for example, if the resource couldn't be found, then return a 404. So there's so all of those strategies of coping with an error are kind of built into the semantics of the error code. Right, so we have the hundreds the 200s 300s 400s and 500s. Yeah, can we dive a bit inside those?