How to Handle Errors in Go
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The JetBrains Go blog has How to Handle Errors in Go, a guide by community contributor Christoph Berger that was originally published in the JetBrains Go Guide and updated in August 2026 for recent language changes. It starts from the premise that errors are values in Go: functions return them alongside other results, and the caller decides how to respond.
It covers wrapping, logging, and returning errors, when panic and defer are appropriate, handling network and I/O errors, and common mistakes made when propagating errors.