make sure the provided api key is correct

Author: vvaezian

metabase_api/metabase_api.py

@@ -17,6 +17,11 @@ def __init__(self, domain, email=None, password=None, api_key=None, basic_auth=F
             self.authenticate()
         else:
             self.header = {"X-API-KEY": api_key}
+            # make sure the provided api key is correct
+            res = requests.get(self.domain + '/api/database/1', headers=self.header)
+            if res.status_code == 401:
+                raise ValueError('The provided API key is not correct.')
+            
         self.is_admin = is_admin
         if not self.is_admin:
             print('''