A comprehensive guide to logging in Go with Slog

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Logging is essential for debugging and monitoring Go applications. The Go standard library provides a basic logging package, but it is not ideal for production use. There are a number of third-party logging libraries available for Go, such as Zap, Logrus, and Zerolog. By Ayooluwa Isaiah.

When choosing a logging library for your Go application, consider the following factors:

  • Features: Does the library support the features you need, such as log levels, structured logging, and sampling?
  • Performance: Is the library overhead acceptable for your application?
  • Ease of use: Is the library easy to configure and use?
  • Support: Is the library actively supported and maintained?

Logging in a structured format offers a significant advantage over traditional plaintext formats by allowing the inclusion of arbitrary attributes as key/value pairs in log records. These attributes provide additional context about the logged event, which can be valuable for tasks such as troubleshooting, generating metrics, auditing, and various other purposes. Nice one!

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Tags monitoring programming microservices app-development golang