What are some examples of using Logrus for logging in Go?

Can you show me some examples of how to use Logrus for logging in Go?

Sure! Logrus is a structured logger for Go. Here's a basic example:

package main

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

func main() {
    log := logrus.New()
    log.Info("This is an info message")
    log.Warn("This is a warning message")
}

How can I log errors with Logrus?

You can log errors using the Error method. Here's an example:

if err != nil {
    log.Error("An error occurred: ", err)
}

Can I log in JSON format?

Yes, you can set the output format to JSON like this:

log.SetFormatter(&logrus.JSONFormatter{})

What about adding fields to the logs?

You can add fields using the WithFields method:

log.WithFields(logrus.Fields{
    "user": "john",
    "attempt": 1,
}).Info("User login attempt")