I am using google-api-client, which has a "create" for single GMail Filter available here: https://developers.google.com/gmail/api/v1/reference/users/settings

I am using google-api-client, which has a "create" for single GMail Filter available here: https://developers.google.com/gmail/api/v1/reference/users/settings/filters https://developers.google.com/gmail/api/v1/reference/users/s...