Draft: big refactor

tracing/tracer.go

@@ -1,33 +1,42 @@
 package tracing
 
 import (
+	"context"
+
 	"github.com/spf13/viper"
-	"github.com/uptrace/opentelemetry-go-extra/otelzap"
-	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/contrib/bridges/otelzap"
+	"go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc"
+	"go.opentelemetry.io/otel/sdk/log"
 	"go.opentelemetry.io/otel/trace"
 	"go.uber.org/zap"
 )
 
 var (
-	Tracer trace.Tracer
-	Logger *otelzap.Logger
+	Provider *log.LoggerProvider
+	Tracer   trace.Tracer
+	Logger   *zap.Logger
 
 	version string = "0.0.1-alpha"
 )
 
 func InitTracer(appname string) {
-	Tracer = otel.Tracer(appname)
-
-	var l *zap.Logger
-	var err error
-	if viper.GetBool("zap-production") {
-		l, err = zap.NewProduction()
-	} else {
-		l, err = zap.NewDevelopment()
-	}
+	ctx := context.Background()
+	exp, err := otlploggrpc.New(ctx,
+		otlploggrpc.WithInsecure(),
+		otlploggrpc.WithEndpoint(viper.GetString("otel-endpoint")))
 	if err != nil {
 		panic(err)
 	}
 
-	Logger = otelzap.New(l)
+	Provider = log.NewLoggerProvider(
+		log.WithProcessor(log.NewBatchProcessor(exp)))
+	otelCore := otelzap.NewCore(appname,
+		otelzap.WithLoggerProvider(Provider))
+
+	Logger = zap.New(otelCore, zap.AddCaller())
+}
+
+func DeferTracer() {
+	Logger.Sync()
+	Provider.Shutdown(context.Background())
 }