⚡ Optimize regexp pattern in get_path_param_names (#1243)

fastapi/utils.py

@@ -67,7 +67,7 @@ def get_model_definitions(
 
 
 def get_path_param_names(path: str) -> Set[str]:
-    return {item.strip("{}") for item in re.findall("{[^}]*}", path)}
+    return set(re.findall("{(.*?)}", path))
 
 
 def create_response_field(