diff --git a/chart/routes/get_chart.py b/chart/routes/get_chart.py
index dc2e7b3..e471fd2 100644
--- a/chart/routes/get_chart.py
+++ b/chart/routes/get_chart.py
@@ -7,28 +7,28 @@ router = APIRouter()
 
 @router.get("/api/getChart/", status_code=status.HTTP_201_CREATED)
 async def get_chart(
-                    response: Response,
-                    request: Request,
-                    from_currency: str = None,
-                    conv_currency: str = None,
-                    start_date: str = None,
-                    end_date: str = None,
-                    ):
+        response: Response,
+        request: Request,
+        from_currency: str = None,
+        conv_currency: str = None,
+        start_date: str = None,
+        end_date: str = None,
+):
 
     if not from_currency or not conv_currency:
         response.status_code = status.HTTP_400_BAD_REQUEST
         return {
-                'status': status.HTTP_400_BAD_REQUEST,
-                'message': 'The from_currency and conv_currency fields are required.',
-                }
+            'status': status.HTTP_400_BAD_REQUEST,
+            'message': 'The from_currency and conv_currency fields are required.',
+        }
+
     elif not start_date and not end_date:
         response.status_code = status.HTTP_400_BAD_REQUEST
         return {
-                'status': status.HTTP_400_BAD_REQUEST,
-                'message': 'The start_date and end_date fields are required.',
+            'status': status.HTTP_400_BAD_REQUEST,
+            'message': 'The start_date and end_date fields are required.',
         }
 
 
     chart = await create_chart(from_currency, conv_currency, start_date, end_date)
-
-    return await prepare_chart_response(response, request, chart)
\ No newline at end of file
+    return await prepare_chart_response(response, request, chart)
diff --git a/chart/routes/get_chart_period.py b/chart/routes/get_chart_period.py
index 658b2b1..bc975fb 100644
--- a/chart/routes/get_chart_period.py
+++ b/chart/routes/get_chart_period.py
@@ -9,19 +9,19 @@ router = APIRouter()
 
 @router.get("/api/getChart/{period}", status_code=status.HTTP_201_CREATED)
 async def get_chart_period(
-                            response: Response,
-                            request: Request,
-                            from_currency: str = None,
-                            conv_currency: str = None,
-                            period: str = None,
-                           ):
+        response: Response,
+        request: Request,
+        from_currency: str = None,
+        conv_currency: str = None,
+        period: str = None,
+):
 
     if not from_currency or not conv_currency:
         response.status_code = status.HTTP_400_BAD_REQUEST
         return {
-                'status': status.HTTP_400_BAD_REQUEST,
-                'message': 'The from_currency and conv_currency fields are required.',
-                }
+            'status': status.HTTP_400_BAD_REQUEST,
+            'message': 'The from_currency and conv_currency fields are required.',
+        }
 
     if period not in ['week', 'month', 'quarter', 'year']:
         response.status_code = status.HTTP_400_BAD_REQUEST
@@ -41,14 +41,16 @@ async def get_chart_period(
     end_date = datetime.now()
     start_date = end_date + dateutil.relativedelta.relativedelta(months=month, days=days, years=years)
 
-    chart = await create_chart(from_currency,
-                               conv_currency,
-                               start_date.strftime('%Y-%m-%d'),
-                               end_date.strftime('%Y-%m-%d')
-                               )
+    chart = await create_chart(
+        from_currency,
+        conv_currency,
+        start_date.strftime('%Y-%m-%d'),
+        end_date.strftime('%Y-%m-%d')
+    )
 
     return await prepare_chart_response(response, request, chart)
 
+
 async def prepare_chart_response(response: Response, request: Request, chart_name: str):
     if not chart_name:
         response.status_code = status.HTTP_404_NOT_FOUND
@@ -60,4 +62,4 @@ async def prepare_chart_response(response: Response, request: Request, chart_nam
     return {
         'status': status.HTTP_201_CREATED,
         'message': f'{url_schema}://{host}/static/charts/{chart_name}.png',
-    }
\ No newline at end of file
+    }