If you are not able to fetch data from Odata.feed then, add new blank query in Power BI Desktop, and use the following codes.
let
Source = OData.Feed("URL", null, [Headers = [Authorization = "Bearer Your token" ] ])
in
Source
and
let
Source = Web.Contents("URL", [Headers=[#" Authorization " = "Bearer Your token"]])
in
Source
If u want to learn the tool in-depth, then come to us and sign up for this Power BI Certification