You ask 10 different developers how they handle errors in their applications, you get 10 very different answers or more, that’s wild. From never raising errors to using custom errors, rescue_from, result objects, monads, we see all sorts of opinions out there. Is it possible that all of them are right? Maybe none of them? Do they take advantage of Rails conventions? In this talk, I will show you error-handling approaches based on patterns we see on typical everyday Rails applications, what their tradeoffs are, and which of them are safe defaults to use as a primary choice when defining the architecture of your application