VED-457: change return type and e2e update response

Author: Akol125

backend/src/fhir_repository.py

@@ -3,7 +3,7 @@
 import time
 import uuid
 from dataclasses import dataclass
-from typing import Optional
+from typing import Optional, Tuple
 
 import boto3
 import botocore.exceptions
@@ -299,7 +299,7 @@ def _perform_dynamo_update(
         supplier_system: str,
         deleted_at_required: bool,
         update_reinstated: bool,
-    ) -> dict:
+    ) -> Tuple[dict, int]:
         try:
             updated_version = existing_resource_version + 1
             condition_expression = Attr("PK").eq(attr.pk) & (

e2e/test_update_immunization.py

@@ -31,7 +31,7 @@ def test_update_imms(self):
 
                     # Then
                     self.assertEqual(response.status_code, 200, response.text)
-                    self.assertEqual(response.text, "")
+                    self.assertEqual(response.text, {"E-Tag": 2})
                     self.assertNotIn("Location", response.headers)
 
     def test_update_non_existent_identifier(self):