package utils import ( "go.uber.org/zap" "go.uber.org/zap/zapcore" ) var log *zap.Logger = nil var atom = zap.NewAtomicLevel() func SetLogLevel(level string) error { lvl := zapcore.InfoLevel // zero value err := lvl.Set(level) if err != nil { return err } atom.SetLevel(lvl) return nil } func Logger() *zap.Logger { if log == nil { cfg := zap.Config{ Encoding: "console", Level: atom, OutputPaths: []string{"stderr"}, ErrorOutputPaths: []string{"stderr"}, EncoderConfig: zapcore.EncoderConfig{ MessageKey: "message", LevelKey: "level", EncodeLevel: zapcore.CapitalLevelEncoder, TimeKey: "time", EncodeTime: zapcore.ISO8601TimeEncoder, NameKey: "caller", EncodeCaller: zapcore.ShortCallerEncoder, }, } logger, err := cfg.Build() if err != nil { panic("could not create logger") } log = logger.Named("gowaku") } return log }