fixed scicat for new httpclient

scilog/httpclient.py

@@ -24,6 +24,7 @@ class HttpClient(AuthMixin):
     def __init__(self, address):
         self.address = address
         self._verify_certificate = True
+        self.login_path = self.address + "/users/login"
         super().__init__(address)
 
     def authenticate(self, username, password):
@@ -54,7 +55,7 @@ class HttpClient(AuthMixin):
         return requests.post(url, json=payload, headers=headers, timeout=timeout, verify=self._verify_certificate).json()
 
     def _login(self, payload=None, headers=None, timeout=10):
-        return requests.post(self.address + "/users/login", json=payload, headers=headers, timeout=timeout, verify=self._verify_certificate).json()
+        return requests.post(self.login_path, json=payload, headers=headers, timeout=timeout, verify=self._verify_certificate).json()
 
     @staticmethod
     def make_filter(where:dict=None, limit:int=0, skip:int=0, fields:dict=None, include:dict=None, order:list=None):