A simple, colorful and flexible logging library for Go.
- 🎨 Colorful console output
- 📊 Multiple log levels support (Trace, Debug, Info, Warn, Error)
- 🔍 Customizable caller information
- ⚙️ Flexible configuration options
- 🎯 Structured logging with key-value pairs
- ⏰ Customizable timestamp format
go get github.com/josexy/logxfunc main() {
// Create a simple console logger with default settings
logger := logx.NewLogContext().WithLevel(logx.LevelTrace).WithEncoder(logx.Console).WithWriter(os.Stdout).Build()
logger.Info("Hello logx!")
}func main() {
logCtx := logx.NewLogContext().
WithLevel(logx.LevelTrace).
WithColorfulset(true, logx.TextColorAttri{}). // Enable colored output
WithLevelKey(true, logx.LevelOption{}). // Show log level
WithCallerKey(true, logx.CallerOption{}). // Show caller information
WithWriter(logx.AddSync(color.Output)). // Set output writer
WithEncoder(logx.Console). // Use console encoder
WithTimeKey(true, logx.TimeOption{Formatter: func(t time.Time) any { return t.Format(time.DateTime) }}) // Customize time format
logger := logCtx.Build()
// Different log levels with structured fields
logger.Trace("this is a trace message", logx.String("key", "value"), logx.Int("key", 2222))
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.With(logx.String("os", runtime.GOOS)).Debug("this is a debug message")
logger2 := logCtx.Copy().WithFields(logx.String("arch", runtime.GOARCH)).WithEncoder(logx.Json).Build()
logger2.Debug("this is a debug message")
}output:
2025-03-21 16:12:21 TRACE example/main.go:213 this is a trace message {"key":"value","key":2222}
2025-03-21 16:12:21 DEBUG example/main.go:214 this is a debug message
2025-03-21 16:12:21 INFO example/main.go:215 this is an info message
2025-03-21 16:12:21 WARN example/main.go:216 this is a warning message
2025-03-21 16:12:21 ERROR example/main.go:217 this is an error message
2025-03-21 16:12:21 DEBUG example/main.go:218 this is a debug message {"os":"linux"}
{"level":"DEBUG","time":"2025-03-21 16:12:21","caller":{"file":"example/main.go:221"},"arch":"amd64","msg":"this is a debug message"}