How to sync data with CardDAV backend?

We want to sync data from SPG Verein to NC backend and create Contacts to share.

More information in app repository on GitLap

Thanks for every hints and enhancements.

Hello,

Nextcloud offers a PHP-based Contacts API:

You simply have to inject OCP\Contacts\IManager into your service.

I’m afraid that apps can’t create shares for addressbooks at the moment.