/
zap.go
72 lines (57 loc) · 1.4 KB
/
zap.go
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package logger
import (
"log"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
)
func InitGlobalLogger(logFilePath, levelFlag string) error {
loggingOutput := []string{"stdout"}
errorOutput := []string{"stderr"}
if len(logFilePath) > 0 {
loggingOutput = append(loggingOutput, logFilePath)
errorOutput = append(errorOutput, logFilePath)
}
logLevel := zapcore.DebugLevel
switch levelFlag {
case "info":
logLevel = zapcore.InfoLevel
break
case "error":
logLevel = zapcore.ErrorLevel
break
case "fatal":
logLevel = zapcore.FatalLevel
break
case "warning":
logLevel = zapcore.WarnLevel
break
case "debug":
logLevel = zapcore.DebugLevel
break
default:
logLevel = zapcore.InfoLevel
break
}
cfg := zap.Config{
Encoding: "json",
Level: zap.NewAtomicLevelAt(logLevel),
OutputPaths: loggingOutput,
ErrorOutputPaths: errorOutput,
EncoderConfig: zapcore.EncoderConfig{
MessageKey: "message",
LevelKey: "level",
EncodeLevel: zapcore.CapitalLevelEncoder,
TimeKey: "time",
EncodeTime: zapcore.ISO8601TimeEncoder,
CallerKey: "caller",
EncodeCaller: zapcore.ShortCallerEncoder,
},
}
logger, err := cfg.Build()
if err != nil {
log.Fatalf("Unable to initalise zap logger: %v ", err)
}
logger.Sugar().Debugf("Initialised logger with %s level and logging to %s", levelFlag, loggingOutput)
zap.ReplaceGlobals(logger)
return nil
}