so i got the attachment id from the api, and the payload is data in bytes
from https://developers.google.com/gmail/api/v1/reference/users/messages/attachments#resource
The body data of a MIME message part as a base64url encoded string.........
so i tried decoding it with https://github.com/brianloveswords/base64url and few other base64 plugins - all returing another unreadable string format.
since i wasn't sure if it was an actual file or decoded url i tried exporting contents to a file with known extension without much success, so it should be a download link.
does anyone have any idea how to get a readable format of this string?
payload string sample
1op669AzYx7c9caYxOd0ZWzNE7IqPyUUnmRkib4HPAUbc3FzzEs7xWl6glqXXo2Y_hjSfT9CtS0THzTkf2rZ8UbKU6S
base64 utf8 decoded sample
↑8�k垬☼A��VN��\�>�/i��U�ՁR∟F����A�☺ň<�v¶��C� I-t��]⌂�R☺
string is much muh bigger, testing can be done here for full response https://developers.google.com/gmail/api/v1/reference/users/messages/attachments/get
UPDATE
