Software fails — networks drop, inputs surprise us, services return errors, and disks fill up. The difference between a fragile program and a reliable one is often not whether errors occur, but how the program responds when they do. Thoughtful error handling turns silent failures into actionable signals: it lets a process recover when recovery is possible, fail loudly and clearly when it is not, and leave behind enough context that the next person (or the next on-call shift) can understand what happened. Logging is the other half of that story — it is the durable record of what your code did, what it tried, and where it went wrong, and it is what makes debugging in production possible at all.
This repo collects templates and snippets for writing informative error handling and logging in a few common languages.