Add helper.DecorateError

1 files changed, 18 insertions, 0 deletions

diff --git a/internal/helper/error.go b/internal/helper/error.go
new file mode 100644
index 000000000..3c8c4b7f9
--- /dev/null
+++ b/internal/helper/error.go
@@ -0,0 +1,18 @@
+package helper
+
+import (
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+)
+
+// DecorateError unless it's already a grpc error.
+//  If given nil it will return nil.
+func DecorateError(code codes.Code, err error) error {
+	if err != nil {
+		if grpc.Code(err) == codes.Unknown {
+			return grpc.Errorf(code, "%v", err)
+		}
+		return err
+	}
+	return nil
+}