remove try catch, it is catched a step above to keep the exception information;

added additional parse try with:
-payload = request.data.dict()
-payload['metadata'] = json.loads(payload['metadata']);
update metadata on update;
prohibit . in filename;

middleware/app_be/services/mongodbservice.py

@@ -60,20 +60,13 @@ class MongoDBService:
         db = instance.AIC
         col = db.metadata
 
-        try:
+        metadata['identifier'] = identifier
-            metadata['identifier'] = identifier
+        metadata['location'] = [metadata['longitude'], metadata['latitude']]
-            metadata['location'] = [metadata['longitude'], metadata['latitude']]
+        metadata['sha512'] = create_sha512(decoded_image)
-            metadata['sha512'] = create_sha512(decoded_image)
+        col.insert_one(metadata)
-            col.insert_one(metadata)
-
-        except:
-            print("Could not insert Metadata")
-            return False
-
-        return True
 
     @staticmethod
-    def updateSingle(identifier, decoded_image) -> bool:
+    def updateSingle(identifier, decoded_image, meta=None) -> bool:
         print("MongoDBService: Trying to update file with identifier " + identifier)
         instance = MongoManager.getInstance()
         db = instance.AIC
@@ -87,6 +80,8 @@ class MongoDBService:
         identifier_changed = identifier + '_' + str(metadata_orig['version'])  # Set identifier to include version
         metadata_new['version'] = str(int(metadata_new['version']) + 1)  # Increment version by one
 
+        metadata_new.update(meta)
+
         print("MongoDBService: identifier_changed: ", identifier_changed)
         col.update_one(old, {"$set": {"identifier": identifier_changed, "filename": identifier_changed + '.jpg'}})
 

middleware/app_be/views/rest_api.py

@@ -23,7 +23,6 @@ class TestApiClass:
 
 
 class ImageEndpoint:
-
     storageServiceList = [DropboxService, MinioService]
 
     @staticmethod
@@ -41,7 +40,7 @@ class ImageEndpoint:
     @api_view(['GET'])
     def image_api_get_single_version(request, identifier, version):
         logger.debug('Image GET single with version call: {}'.format(request))
-        return ImageEndpoint.get_image(identifier+'_'+version)
+        return ImageEndpoint.get_image(identifier + '_' + version)
 
     @staticmethod
     @api_view(['GET'])
@@ -100,7 +99,7 @@ class ImageEndpoint:
                     oldest_last_modified = modified
                     service_with_oldest = service
 
-            if service_with_oldest is None: # failsave if no image is available
+            if service_with_oldest is None:  # failsave if no image is available
                 return JsonResponse({'Result': 'Error - image is not available on any storage service',
                                      'id': identifier}, status=404, safe=False)
             # replace image on every service with oldest available
@@ -129,7 +128,17 @@ class ImageEndpoint:
     @api_view(['POST'])
     def image_api_post(request: HttpRequest):
         logger.debug('Image POST call: {}'.format(request))
-        payload = json.loads(request.body)
+
+        try:
+            payload = json.loads(request.body)
+        except json.decoder.JSONDecodeError:
+            try:
+                payload = request.data.dict()
+                payload['metadata'] = json.loads(payload['metadata'])
+            except Exception as e:
+                return JsonResponse({'Result': 'Error - could not parse uploaded data',
+                                     'Error': str(e)}, status=500, safe=False)
+
         b64encoded_image = payload['image_data']
         identifier = payload['id']
         metadata = payload['metadata']
@@ -139,16 +148,21 @@ class ImageEndpoint:
 
         decoded_image = WrapperService.unwrap_file(b64encoded_image)
 
-        if not MongoDBService.createSingle(metadata, identifier, decoded_image):
+        try:
-            print("Could not save metadata")
+            MongoDBService.createSingle(metadata, identifier, decoded_image)
-            return JsonResponse({'Result': 'Error - could not upload to MongoDB', 'id': identifier, 'filename': filename},status=500,safe=False)
+        except Exception as e:
+            print("Could not save metadata:", e)
+            return JsonResponse({'Result': 'Error - could not upload to MongoDB',
+                                 'Error': str(e), 'id': identifier, 'filename': filename}, status=500, safe=False)
 
         for service in ImageEndpoint.storageServiceList:
             if not service.create_file(filename, decoded_image):
                 print("Could not save image to " + service.name)
-                return JsonResponse({'Result': 'Error - could not upload to ' + service.name, 'id': identifier, 'filename': filename},status=500, safe=False)
+                return JsonResponse(
+                    {'Result': 'Error - could not upload to ' + service.name, 'id': identifier, 'filename': filename},
+                    status=500, safe=False)
 
-        return JsonResponse({'id': identifier, 'filename': filename},safe=False)
+        return JsonResponse({'id': identifier, 'filename': filename}, safe=False)
 
     @staticmethod
     @api_view(['DELETE'])
@@ -196,7 +210,17 @@ class ImageEndpoint:
     def image_api_update(request, identifier):
         logger.debug('Image UPDATE single call: {}'.format(request))
 
-        payload = json.loads(request.body)
+
+        try:
+            payload = json.loads(request.body)
+        except json.decoder.JSONDecodeError:
+            try:
+                payload = request.data.dict()
+                payload['metadata'] = json.loads(payload['metadata'])
+            except Exception as e:
+                return JsonResponse({'Result': 'Error - could not parse uploaded data',
+                                     'Error': str(e)}, status=500, safe=False)
+
         b64encoded_image = payload['image_data']
         identifier = payload['id']
         metadata = payload['metadata']
@@ -212,7 +236,7 @@ class ImageEndpoint:
 
         decoded_image = WrapperService.unwrap_file(b64encoded_image)
 
-        MongoDBService.updateSingle(identifier, decoded_image)
+        MongoDBService.updateSingle(identifier, decoded_image, metadata)
 
         for service in ImageEndpoint.storageServiceList:
             orig_new_name = identifier + '_' + str(metadata['version']) + '.jpg'
@@ -240,7 +264,6 @@ class ImageEndpoint:
 
 
 class HealthEndpoint:
-
     storageServiceList = [DropboxService, MinioService]
 
     @staticmethod