Add view to get categories with their expenses and revenues.

accountant/api/views/entries.py

@@ -130,5 +130,22 @@ class EntryResource(Resource):
         return entry
 
 
+category_resource_fields = {
+    'category': fields.String,
+    'expenses': fields.Float,
+    'revenues': fields.Float
+}
+
+
+class CategoriesResource(Resource):
+    @session_aware
+    @marshal_with_field(fields.List(Object(category_resource_fields)))
+    def get(self, session):
+        kwargs = range_parser.parse_args()
+
+        return Operation.get_categories_for_range(session, **kwargs)
+
+
 api_api.add_resource(EntryListResource, "/entries")
 api_api.add_resource(EntryResource, "/entries/<int:entry_id>")
+api_api.add_resource(CategoriesResource, "/categories")