Understanding Go's sync.Once: Fast-Path and Slow-Path Programming Pattern

sync.Once Overview sync.Once is a Go standard library mechanism designed to ensure a function executes exactly once, regardless of concurrent access patterns. This pattern is particularly useful for one-time initialization tasks, such as setting up singleton clients or loading configuration data. The Fast-Path and Slow-Path Pattern Slow Path Th ...

Posted on Sun, 10 May 2026 04:45:18 +0000 by Gary Kambic