How to get All the Sprint Informaion using OAuth 2.0 (3LO) apps

[Nisarg Raval]

I am new to Jira API development. I am trying to fetch All Sprint information using the rest of the API. But not finding anything in the docs.

Found /rest/agile/1.0/board URL but shows "OAuth 2.0 is not enabled for method: GET /rest/agile/1.0/board". Any help or workaround would be appreciated.