update error handling

lib/API.js

@@ -35,7 +35,7 @@ class API {
 
             request.get({ url: url, headers: headers }, (err, response, body) => {
                 console.log(body);
-                if(err) reject(err);
+                if(err || body.status == 401) reject(err);
                 resolve(JSON.parse(body));
             });
         });