policies implemented

internal/api/service/service.go

@@ -0,0 +1,20 @@
+package service
+
+import "context"
+
+type serviceKey struct{}
+
+var key *serviceKey = (*serviceKey)(nil)
+
+func WithService(partent context.Context, serviceName string) context.Context {
+	return context.WithValue(partent, key, serviceName)
+}
+
+func FromContext(ctx context.Context) string {
+	value := ctx.Value(key)
+	if name, ok := value.(string); ok {
+		return name
+	}
+
+	return ""
+}