In Go, you can set log levels using the Zap logging library, which provides a structured way to log messages with varying levels of severity. This example demonstrates how to configure different log levels and use them effectively in your application.
package main
import (
"go.uber.org/zap"
)
func main() {
// Create a new logger with development configuration
logger, err := zap.NewDevelopment()
if err != nil {
panic(err)
}
defer logger.Sync() // flushes buffer, if any
// Setting various log levels
logger.Debug("This is a debug message")
logger.Info("This is an info message")
logger.Warn("This is a warning message")
logger.Error("This is an error message")
logger.DPanic("This is a critical debug panic message")
logger.Panic("This is a panic message")
logger.Fatal("This is a fatal message")
}
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