#Error Handling

Error translation in Go services

Translating errors at layer boundaries so storage details don't leak into the handler or, worse, into client responses.

Go errors: to wrap or not to wrap?

Exploring the tradeoffs between wrapping errors at every return site versus wrapping only at boundaries, with no definitive answer - just honest tradeoffs for the kind of software I write.

Redowan Delowar·Mar 7·13 min read

Go Error Handling

What canceled my Go context?

How Go 1.20's WithCancelCause and Go 1.21's WithTimeoutCause let you attach a reason to context cancellation, plus a gotcha with manual cancel and the stdlib pattern that covers every path.

Redowan Delowar·Feb 24·12 min read

Go Error Handling Concurrency

Splintered failure modes in Go

Simplify Go error handling by consolidating validation and system errors. Learn when to return boolean vs error for clearer failure modes.

Redowan Delowar·Nov 30·4 min read

Go Error Handling

Anemic stack traces in Go

Learn how to build custom error types in Go to create stack traces without runtime overhead, inspired by Rob Pike's Upspin error handling.

Redowan Delowar·Feb 10·5 min read

Go Error Handling Logging

Retry function in Go

Build retry logic in Go without reflection using generics. Implement exponential backoff and configurable retry strategies with type safety.

Redowan Delowar·Feb 4·3 min read

Go TIL Error Handling

Go Rusty with exception handling in Python

Implement Rust-style Result types for type-safe exception handling in Python using generic Ok and Err types inspired by Black formatter.

Redowan Delowar·Feb 2·2 min read

Python Error Handling Typing