# README
Zerolog
Zerolog logger implementation
Usage
Production
import (
"github.com/xmlking/logger"
"github.com/xmlking/logger/log"
"github.com/xmlking/logger/zerolog"
)
func ExampleLog() {
logger.DefaultLogger = zerolog.NewLogger(
logger.WithOutput(os.Stdout),
logger.WithTimeFormat("ddd"),
zerolog.WithProductionMode(),
)
log.Info("test show info: ", "msg ", true, 45.65)
log.Infof("test show infof: name: %s, age: %d", "sumo", 99)
log.WithFields(map[string]interface{}{
"name": "sumo",
"age": 99,
"alive": true,
}).Info("test show fields")
// Output:
// {"level":"info","time":"ddd","message":"test show info: msg true 45.65"}
// {"level":"info","time":"ddd","message":"test show infof: name: sumo, age: 99"}
// {"level":"info","age":99,"alive":true,"name":"sumo","time":"ddd","message":"test show fields"}
}
GCP
set log level name to Severity for GCP StackDriver
import (
"os"
"testing"
"github.com/xmlking/logger"
"github.com/xmlking/logger/log"
"github.com/xmlking/logger/zerolog"
)
func ExampleWithGcp() {
logger.DefaultLogger = zerolog.NewLogger(logger.WithOutput(os.Stdout), logger.WithTimeFormat("aaa"), zerolog.WithGCPMode())
log.Info("testing: Info")
log.Infof("testing: %s", "Infof")
log.WithFields(map[string]interface{}{
"name": "sumo",
"age": 99,
"alive": true,
}).Info("testing: with fields")
logger.DefaultLogger.Init(ReportCaller())
log.WithError(fmt.Errorf("Error %v: %w", "nested", errors.New("root error message"))).Error("TestWithGCPModeAndWithError")
// Output:
//{"severity":"Info","timestamp":"aaa","message":"testing: Info"}
//{"severity":"Info","timestamp":"aaa","message":"testing: Infof"}
//{"severity":"Info","age":99,"human":true,"sumo":"demo","timestamp":"aaa","message":"testing: with fields"}
//{"severity":"Error","error":"Error nested: root error message","timestamp":"aaa","logging.googleapis.com/sourceLocation":{"file":"zerolog.go","line":"170","function":"github.com/xmlking/logger/zerolog.(*zeroLogger).Error"},"message":"TestWithGCPModeAndWithError"}
}