Errors usually happen during IO, but not in the main business logic and those two can be neatly separated. But If you are coming from java I can understand the

Errors usually happen during IO, but not in the main business logic and those two can be neatly separated. But If you are coming from java I can understand the single error handling block is more comfortable, but coming from JavaScript/Typescript it's much more easy to check if err != nil, than to debug errors I forgot to handle, during runtime.