http prefix

csst_dfs_client/common/request.py

@@ -16,6 +16,8 @@ def get_request_url(endpoint: str) -> str:
     base_url = os.getenv("CSST_DFS_GATEWAY", None)
     if not base_url:
         raise ValueError("env CSST_DFS_GATEWAY is not set.")
+    if not endpoint.startswith("http://"):
+        base_url = "http://" + base_url
     return f"{base_url}{endpoint}"
 
 def request_error_handler_decorator(func):