curl -i -X POST "https://api.box.com/oauth2/revoke" \
     -H "content-type: application/x-www-form-urlencoded" \
     -d "client_id=[CLIENT_ID]" \
     -d "client_secret=[CLIENT_SECRET]" \
     -d "token=[ACCESS_TOKEN]"

oauth.revoke()

client.revokeTokens("<TOKEN>")
	.then(() => {
		// the client's access token have been revoked
	});