fix: always provide a path

https://github.com/stephenhillier/starlette_exporter/commit/891efcd142da5a13f72ec9647ad0b8aca21075a8

aurweb/prometheus.py

@@ -70,9 +70,17 @@ def http_requests_total() -> Callable[[Info], None]:
         if not (scope.get("endpoint", None) and scope.get("router", None)):
             return None
 
+        root_path = scope.get("root_path", "")
+        app = scope.get("app", {})
+
+        if hasattr(app, "root_path"):
+            app_root_path = getattr(app, "root_path")
+            if root_path.startswith(app_root_path):
+                root_path = root_path[len(app_root_path):]
+
         base_scope = {
             "type": scope.get("type"),
-            "path": scope.get("root_path", "") + scope.get("path"),
+            "path": root_path + scope.get("path"),
             "path_params": scope.get("path_params", {}),
             "method": scope.get("method")
         }