Have you ever registered or monitored errors in your previous role?

Yes, in my practice when developing in Go, I regularly registered and monitored errors to improve the reliability of applications.

For error logging, I often used the standard log package or third-party libraries such as zap or logrus, which allow structuring logs and setting importance levels.

A simple example of error logging:

package main

import (
    "errors"
    "log"
)

func doSomething() error {
    return errors.New("something went wrong")
}

func main() {
    if err := doSomething(); err != nil {
        log.Printf("Error: %v", err)
    }
}

For monitoring, I used integration with systems for collecting metrics and logs (e.g., Prometheus, ELK), which allowed for quick response to issues in production.