问题
Using https://azure.microsoft.com/en-us/documentation/articles/active-directory-v2-protocols-oauth-code/, i was able to generate access token. But when i try to sent a message to skype bot using the access token generated using scopes defined in above url, i get a "401: The provided 'OAuth' ticket failed authentication." error. What scopes should i use while i generate a code or access token to sent a message to skype bot via API (https://docs.botframework.com/en-us/skype/chat/#rest-api ) . The scope specified here under skype/chat/#authentication does not even takes me to login page to generate code .
回答1:
To generate a token you should do the HTTP call described in https://api.botframework.com/en-us/skype/chat/#authentication, i.e.
POST /common/oauth2/v2.0/token HTTP/1.1
Host: login.microsoftonline.com
Content-Type: application/x-www-form-urlencoded
client_id=<your bot msa app id>&client_secret=<your bot secret>&grant_type=client_credentials&scope=https%3A%2F%2Fgraph.microsoft.com%2F.default
So the scope is 'https://graph.microsoft.com/.default'.
来源：https://stackoverflow.com/questions/40457666/what-scope-should-we-use-to-sent-messages-to-skype-bot