angular - Yammer REST API with O365 Yammer Resource Authentication -


i trying integrate yammer rest api services in angular 2 project.

1) getting yammer authentication token using https://login.microsoftonline.com/common/oauth2 because in application using graph , sharepoint services.

2) now, using yammer token & ajax call trying fetch topic feeds www.yammer.com/api/v1/messages/about_topic/:topic_id.json have tried api.yammer.com instead of www.yammer.com it's throwing pre-flight error.

3) but, time being using webrequest in c# , using c# functions services fetch feeds yammer.

how fix issue? should call cors service.

note: don't want 2 login process app. authenticating user using login.microsoft.com.


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