[update] 支持直接http路径

vnpy/api/rest/rest_client.py

@@ -404,6 +404,9 @@ class RestClient(object):
         try:
             with self._get_session() as session:
                 request = self.sign(request)
+                if request.path.startswith('http'):
+                    url = request.path
+                else:
                     url = self.make_full_url(request.path)
 
                 # send request