UPDATE

Modules/Backend/auth/serializers.py

@@ -0,0 +1,49 @@
+from rest_framework import serializers
+
+
+# --- Register ---
+class RegisterSerializer(serializers.Serializer):
+    """Request body for POST /api/auth/register/."""
+
+    username = serializers.CharField(max_length=150)
+    email = serializers.EmailField()
+    phone_number = serializers.CharField(max_length=32)
+    password = serializers.CharField(min_length=8, write_only=True)
+    first_name = serializers.CharField(max_length=150, required=False, default="")
+    last_name = serializers.CharField(max_length=150, required=False, default="")
+
+
+# --- Login ---
+class LoginSerializer(serializers.Serializer):
+    """Request body for POST /api/auth/login/.
+    identifier can be username, email, or phone_number."""
+
+    identifier = serializers.CharField()
+    password = serializers.CharField(min_length=8, write_only=True)
+
+
+# --- RequestOTP (request-otp/) ---
+class RequestOTPSerializer(serializers.Serializer):
+    """Request body for POST /api/auth/request-otp/."""
+
+    phone_number = serializers.CharField(max_length=32)
+
+
+# --- VerifyOTP (verify-otp/) ---
+class VerifyOTPSerializer(serializers.Serializer):
+    """Request body for POST /api/auth/verify-otp/."""
+
+    token = serializers.CharField()
+    otp_code = serializers.CharField(max_length=10)
+
+
+# --- AuthUser (used in VerifyOTPResponse and UpdateProfileResponse) ---
+class AuthUserSerializer(serializers.Serializer):
+    """User data returned in auth/account responses."""
+
+    id = serializers.IntegerField()
+    username = serializers.CharField()
+    email = serializers.EmailField(allow_blank=True)
+    first_name = serializers.CharField()
+    last_name = serializers.CharField()
+    phone_number = serializers.CharField()