How to start creating a plugin

Hi,

what is the best approach to start creating a web app plugin. My goal i to analyze headers to gather informations about Ciphermail actions and encryption state of incoming mails and display icons to reflect these and perhaps display a popup with detailed informations as I did for Thunderbird: https://wiki.mhcsoftware.de/ciphermail_thunderbird_addon

TIA
Matthias

Hi Matthias,

Good start would be reading documentation and check out existing plugins.

Docu:
https://documentation.kopano.io/webapp_developers_manual/
https://documentation.kopano.io/webapp_developers_javascript_api/

Existing plugins:
https://stash.kopano.io/projects/KWA

This plugin is useful to find the insertion points:
https://documentation.kopano.io/webapp_developers_manual/insertion_points.html#zdeveloper-plugin