diff --git a/middleware/app_be/views/mongo_db.py b/middleware/app_be/views/mongo_db.py
index 3326c1f..ce5c8e8 100644
--- a/middleware/app_be/views/mongo_db.py
+++ b/middleware/app_be/views/mongo_db.py
@@ -1,5 +1,6 @@
 import pymongo
 
+
 class MongoManager:
     __instance = None
 
@@ -17,6 +18,7 @@ class MongoManager:
             db = MongoManager.__instance.AIC
             coll = db.metadata
             db.coll["identifier"]
+            db.coll["sha512"]
             db.coll["location"]
-            coll.create_index("identifier",unique=True)
-            coll.create_index([("location", pymongo.GEO2D)])
\ No newline at end of file
+            coll.create_index("identifier", unique=True)
+            coll.create_index([("location", pymongo.GEO2D)])
diff --git a/middleware/app_be/views/rest_api.py b/middleware/app_be/views/rest_api.py
index b65a0b0..414ec7b 100644
--- a/middleware/app_be/views/rest_api.py
+++ b/middleware/app_be/views/rest_api.py
@@ -1,6 +1,6 @@
+import hashlib
 import logging
 import json
-import base64
 
 from app_be.services.dropboxservice import DropboxService
 from app_be.services.wrapperservice import WrapperService
@@ -43,7 +43,6 @@ class ImageEndpoint:
 
         return JsonResponse({'Result': 'success1'}, safe=False)
 
-
     @staticmethod
     @api_view(['GET'])
     def image_api_get_single(request, identifier):
@@ -68,7 +67,8 @@ class ImageEndpoint:
         dropbox_image_bytes = DropboxService.read_file(metadata['filename'])
 
         if dropbox_image_bytes is None:
-            return JsonResponse({'Result': 'Error - could not find image in dropbox.', 'id': identifier}, status=404, safe=False)
+            return JsonResponse({'Result': 'Error - could not find image in dropbox.', 'id': identifier}, status=404,
+                                safe=False)
 
         payload = {
             'id': identifier,
@@ -93,15 +93,20 @@ class ImageEndpoint:
         db = instance.AIC
         col = db.metadata
 
+        decoded_image = WrapperService.unwrap_file(b64encoded_image)
+        h = hashlib.sha512()
+        h.update(decoded_image)
+        metadata['sha512'] = h.hexdigest()
+
         try:
             metadata['identifier'] = identifier
-            metadata['location'] = [metadata['longitude'],metadata['latitude']]
+            metadata['location'] = [metadata['longitude'], metadata['latitude']]
             col.insert_one(metadata)
 
         except:
             print("Could not insert Metadata")
 
-        decoded_image = WrapperService.unwrap_file(b64encoded_image)
+
         if not DropboxService.create_file(filename, decoded_image):
             print("Could not save image to dropbox")
 
@@ -124,4 +129,4 @@ class ImageEndpoint:
         except:
             print("Could not delete Metadata")
 
-        return JsonResponse({'Result': 'success1'}, safe=False)
\ No newline at end of file
+        return JsonResponse({'Result': 'success1'}, safe=False)