how can i get power bi api token using azure active directory

hai all , 

1. i was register in https://dev.powerbi.com/apps select the Applications

Type: Native 

API access : Select All 

Register and get the Application ID

2.then Go to the https://portal.azure.com 

click the Azure Active Directory and select the app registrations

Name: abc

Application Type:Native

Sign In On -URL: https:localhost

register this one after

3. in the app registrations

4.after select the Setting and click the Required permissions 

 Add to Windows Azure Active Directory 

Enable the Sign in and read user profile and Access the directory as the signed-in user 

how can i get the API Token Please Guide to Anyone 

thank and Regards 

Herwin