diff --git a/codes/serializers.py b/codes/serializers.py
new file mode 100644
index 0000000..ea32359
--- /dev/null
+++ b/codes/serializers.py
@@ -0,0 +1,10 @@
+from django.utils.timezone import now
+
+from .models import *
+from rest_framework import serializers
+from common.utils.codeManger import set_expire, generate_code
+
+
+class CertificateCodeSerializer(serializers.Serializer):
+    identifier = serializers.CharField(max_length=40, write_only=True)
+    code = serializers.CharField(max_length=6, write_only=True, required=False)