Our APP need leaderboard with time, like below
1. Could Leaderboard Service record time format date or other format and rank with it ?
Not only time, as well calories(cal), distance(km) and other units.
If not, are there other ways to achieve it ?
2. About User Management Service, what are the limits of create a user name ?
I use some special symbols(like “, ‘, >) to create user name, I get error message “1400 - BAD REQUEST - The Request parameters are invalid. “
So I want to know the rule of create user name.