delete functionality for metadata

middleware/app_be/urls.py

@@ -25,6 +25,7 @@ urlpatterns = [
     url(r'^test/', TestApiClass.test_api),
     url(r'^image/get/all$', ImageEndpoint.image_api_get_all),
     url(r'^image/get/(?P<identifier>[\w-]+)$', ImageEndpoint.image_api_get_single),
+    url(r'^image/delete/(?P<identifier>[\w-]+)$', ImageEndpoint.image_api_delete),
     url(r'^image/post$', ImageEndpoint.image_api_post)
 ]
 

middleware/app_be/views/rest_api.py

@@ -107,3 +107,21 @@ class ImageEndpoint:
 
         return JsonResponse({'id': identifier, 'filename': filename},
                             safe=False)  # 'metadata': metadata response beinhaltet ObjectId welche nicht serializable is?
+
+    @staticmethod
+    @api_view(['DELETE'])
+    def image_api_delete(request: HttpRequest, identifier):
+
+        logger.debug('Image DELETE single call: {}'.format(request))
+
+        instance = MongoManager.getInstance()
+
+        db = instance.AIC
+        col = db.metadata
+
+        try:
+            col.delete_one({"identifier": identifier})
+        except:
+            print("Could not delete Metadata")
+
+        return JsonResponse({'Result': 'success1'}, safe=False)