feat: add projection layer to eventstore

internal/lg/init.go

@@ -1,4 +1,4 @@
-package logz
+package lg
 
 import (
 	"context"

internal/lg/logger.go

@@ -1,4 +1,4 @@
-package logz
+package lg
 
 import (
 	"bytes"
@@ -72,7 +72,7 @@ func initLogger(name string) func() error {
 	l, err := logzio.New(
 		token.Secret(),
 		// logzio.SetDebug(os.Stderr),
-		logzio.SetUrl(env("LOGZIO_LOG_URL", "https://listener.logz.io:8071")),
+		logzio.SetUrl(env("LOGZIO_LOG_URL", "https://listener.lg.io:8071")),
 		logzio.SetDrainDuration(time.Second*5),
 		logzio.SetTempDirectory(env("LOGZIO_DIR", os.TempDir())),
 		logzio.SetCheckDiskSpace(true),

internal/lg/metric.go

@@ -1,4 +1,4 @@
-package logz
+package lg
 
 import (
 	"context"

internal/lg/tracer.go

@@ -1,4 +1,4 @@
-package logz
+package lg
 
 import (
 	"context"
@@ -33,10 +33,10 @@ func Tracer(ctx context.Context) trace.Tracer {
 	return otel.Tracer("")
 }
 
-func Span(ctx context.Context, opts ...trace.SpanStartOption) (context.Context, trace.Span) {
+func attrs(ctx context.Context) (string, []attribute.KeyValue) {
 	var attrs []attribute.KeyValue
 	var name string
-	if pc, file, line, ok := runtime.Caller(1); ok {
+	if pc, file, line, ok := runtime.Caller(2); ok {
 		if fn := runtime.FuncForPC(pc); fn != nil {
 			name = fn.Name()
 		}
@@ -47,12 +47,29 @@ func Span(ctx context.Context, opts ...trace.SpanStartOption) (context.Context,
 			attribute.String("name", name),
 		)
 	}
+	return name, attrs
+}
+
+func Span(ctx context.Context, opts ...trace.SpanStartOption) (context.Context, trace.Span) {
+	name, attrs := attrs(ctx)
 	ctx, span := Tracer(ctx).Start(ctx, name, opts...)
 	span.SetAttributes(attrs...)
 
 	return ctx, span
 }
 
+func Fork(ctx context.Context, opts ...trace.SpanStartOption) (context.Context, trace.Span) {
+	name, attrs := attrs(ctx)
+	childCTX, childSpan := Tracer(ctx).Start(context.Background(), name, append(opts, trace.WithLinks(trace.LinkFromContext(ctx)))...)
+	childSpan.SetAttributes(attrs...)
+
+	_, span := Tracer(ctx).Start(ctx, name, append(opts, trace.WithLinks(trace.LinkFromContext(childCTX)))...)
+	span.SetAttributes(attrs...)
+	defer span.End()
+
+	return childCTX, childSpan
+}
+
 type SampleRate string
 
 const (