I need to create a gmail addon to make queries based on email content to an external API. My webhook is able to return data in json and HTML format. The HTML will be printed out in the addon.
The addon will have 2 features:
1) Based on sender / recipent of an email, print a card with data from an external webhook
2) Selectable on each attachment for upload the file or set a property using an external webhook (as gmail already do with drive)
The api server is up and running.
Gmail addons are fully documented here: [login to view URL]