Java integration
curl \
-H "Authorization: Bearer $ACCESS_TOKEN" \
https://gmail.googleapis.com/gmail/v1/users/{userId}/draftscurl \
-H "Authorization: Bearer $ACCESS_TOKEN" \
https://gmail.googleapis.com/gmail/v1/users/{userId}/labelscurl \
-H "Authorization: Bearer $ACCESS_TOKEN" \
https://gmail.googleapis.com/gmail/v1/users/{userId}/history