golang-go.uber-zap-dev - 1.9.1-1 main

Package zap provides fast, structured, leveled logging.
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For applications that log in the hot path, reflection-based
serialization and string formatting are prohibitively expensive,
they're CPU-intensive and make many small allocations. Put
differently, using json.Marshal and fmt.Fprintf to log tons of
interface{} makes your application slow.
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Zap takes a different approach. It includes a reflection-free,
zero-allocation JSON encoder, and the base Logger strives to avoid
serialization overhead and allocations wherever possible. By
building the high-level SugaredLogger on that foundation, zap lets
users choose when they need to count every allocation and when
they'd prefer a more familiar, loosely typed API.