How to get teams userId using aadObjectId ?

Hello There, 

I'm trying to add my custom ms teams app as channel or group app where I have to get the team details such as teamId, userId (the user who adds the teams app to the channel). I have used teams javascript client library to get the teams context details using getContext() method. 

In the context, I'm able to get teamsId and userObjectId (aadObjectId), but I need to get teams platform’s user Id for business logic. 

Is there any way to get the userId in front-end itself, or by using aadObjectId , without using Graph API since we are using bot builder sdk