Hello everyone!
Can anyone recommend not-outdated literature on developing JIRA plugins from scratch? The official documentation seems only sufficient for simple plugins.
It would be nice if theres a chapter about authentication process and blocking requests ( are filters sufficient for this?), as this - I assume - are the two main things needed for developing a multifactor authentication plugin, which I'm planning to do.
If by any chance Jobin is reading this: Does the newest Version of your CookBook also covers development process using Atlassian Connect, or isn't it still that good of an approach as p2? Or do the two technologies may have different application areas, which I didn't get from the official documentation yet?
If anyone can provide any type of additional information about the development of plugins/add-ons, it's very much appreciated 
Thanks in advance,
slothy