bgloop

Overview ¶

Package bgloop provides panic recovery for long-lived background goroutines.

An unrecovered panic in any goroutine crashes the whole Go process, not just that goroutine. Long-lived background loops (ticker-driven cleanup, queue pollers) must therefore guard each iteration so a transient panic is logged and the loop survives instead of taking the server down.

Use Recover deferred inside the body of a loop iteration:

for {
	select {
	case <-ctx.Done():
		return
	case <-ticker.C:
		func() {
			defer bgloop.Recover("auth.backgroundCleanup")
			doWork(ctx)
		}()
	}
}