My velocity report is empty

[David Ansari]

I have multiple sprints sets in my project and some of the sprints have been completed. When i try to pull the velocity report, it comes empty. Please assist.

thanks 

[Yevgen Lasman]

For Atlassian products you can use REST API to gather whatever you need about a user. The major advise is to use OAuth or at least session token, because Basic Auth for the large number of requests will severely impact applications performance.