What are some examples of structured logging in Go?

What are some examples of structured logging in Go?

Structured logging in Go involves logging data in a structured format, like JSON. For example, using the logrus package, you can log key-value pairs.

Can you show me a code snippet for that?

Sure! Here's a simple example:

package main

import (
    "github.com/sirupsen/logrus"
)

func main() {
    log := logrus.New()
    log.WithFields(logrus.Fields{
        "event": "user_signup",
        "user_id": 123,
    }).Info("User signed up")
}

What are the benefits of using structured logging?

Structured logging makes it easier to search and analyze logs, especially in large systems. It allows for better filtering and querying.

Are there any libraries you recommend for structured logging in Go?

Yes, popular libraries include logrus, zap, and zerolog. Each has its own features and performance characteristics.