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Languages & runtimes · #go
A step‑by‑step diagnostic guide for finding and fixing data races in Go programs using the built‑in race detector.
Learn how to identify and resolve goroutine leaks in Go. This guide covers pprof diagnostics, common blocking channel patterns, and context-aware fixes to prevent memory exhaustion.
Learn how to use Go's context package to cancel goroutines gracefully, prevent leaks, and enforce timeouts in concurrent applications. A practical example and actionable checklist are included.
Learn how to prevent hanging Go programs by using the select statement and time.After to implement robust timeouts and non-blocking communication.
Learn how to use Go's context package to implement request-scoped timeouts and cancellation in HTTP handlers to prevent goroutine leaks and optimize resource usage.
Create a Mattermost deployment notifier plugin that registers a slash command, streams status updates, and runs safely in the plugin sandbox. Follow the step‑by‑step guide, trade‑off analysis, and verification checklist.
Learn how to implement a worker‑pool pattern in Go, control goroutine count, avoid leaks, and verify correctness with race detection and runtime metrics.
I'm designing authentication for a Fiber (v2) API using the contrib jwtware middleware and need to settle how expired credentials behave before I lock in the client contract. From the documentation, jwtware validates the signature and time claims and rejects an expired token with a 401 before it reaches my handler, and the ErrorHandler hook lets me customize
Initialization Sequence in Complex Package Dependencies Go manages package-level variable initialization and the execution of init() functions based on the dependency graph. While circular dependencies are prohibited at compile-time, the exact execution order of init() functions across multiple files within a single package can introduce uncertainty when glo
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