/
zap.go
62 lines (57 loc) · 1.59 KB
/
zap.go
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package logging
import (
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
)
func encodeLevel() zapcore.LevelEncoder {
return func(l zapcore.Level, enc zapcore.PrimitiveArrayEncoder) {
switch l {
case zapcore.DebugLevel:
enc.AppendString("DEBUG")
case zapcore.InfoLevel:
enc.AppendString("INFO")
case zapcore.WarnLevel:
enc.AppendString("WARNING")
case zapcore.ErrorLevel:
enc.AppendString("ERROR")
case zapcore.DPanicLevel:
enc.AppendString("CRITICAL")
case zapcore.PanicLevel:
enc.AppendString("ALERT")
case zapcore.FatalLevel:
enc.AppendString("EMERGENCY")
case zapcore.InvalidLevel:
enc.AppendString("DEBUG")
}
}
}
// Based on:
// https://cloud.google.com/logging/docs/structured-logging
// https://github.com/uber-go/zap/issues/1095
func GetLogger() *zap.SugaredLogger {
encoderConfig := zapcore.EncoderConfig{
TimeKey: "time",
LevelKey: "severity",
NameKey: "logger",
CallerKey: "caller",
MessageKey: "message",
StacktraceKey: "stacktrace",
LineEnding: zapcore.DefaultLineEnding,
EncodeLevel: encodeLevel(),
EncodeTime: zapcore.RFC3339TimeEncoder,
EncodeDuration: zapcore.MillisDurationEncoder,
EncodeCaller: zapcore.ShortCallerEncoder,
}
loggerCfg := &zap.Config{
Level: zap.NewAtomicLevelAt(zapcore.InfoLevel),
Encoding: "json",
EncoderConfig: encoderConfig,
OutputPaths: []string{"stdout"},
ErrorOutputPaths: []string{"stderr"},
}
plain, err := loggerCfg.Build(zap.AddStacktrace(zap.DPanicLevel))
if err != nil {
plain = zap.NewNop()
}
return plain.Sugar()
}