Taming the Chaos: Centralizing and Structuring Error Handling in Go
2024-12-18
This article details the author's journey in tackling escalating error handling issues in a growing Go project. Initially, the simple approach to error handling devolved into chaos with confusing logs and untraceable errors. To solve this, a new error handling framework was designed and implemented. This framework employs a centralized, structured system using namespace codes to make errors meaningful and traceable. The core is a centralized declaration of error codes; each service layer returns only its own namespace codes, enriched with context information. The article thoroughly explains the design decisions, implementation, lessons learned, and migration strategy, offering valuable practical experience.