What are some examples of structured logging using Logrus?

What are some examples of structured logging using Logrus?

Structured logging with Logrus allows you to log data in a structured format, making it easier to analyze. For example, you can log a user login event like this:

log.WithFields(log.Fields{
    "user_id": userID,
    "event": "login",
}).Info("User logged in")

Can you give me another example?

Sure! Here's an example of logging an error with additional context:

log.WithFields(log.Fields{
    "error": err.Error(),
    "request_id": requestID,
}).Error("An error occurred processing the request")

How can I format the output of these logs?

You can set the Logrus formatter to JSON for structured output:

log.SetFormatter(&log.JSONFormatter{})
``` This will output logs in JSON format, which is great for log aggregation.