To work with Nextcloud 13 the API URL string in nextcloud.conf should be:
https://"$2"@domain.tld/ocs/v2.php/apps/serverinfo/api/v1/info
Login credentials are subltituted from the MACRO and should be given as user:password
Thanks for your idea!

In new versions of zabbix-agent there is no need to modify /etc/zabbix/zabbix_agentd.conf. Default configuration already have following line
Include=/etc/zabbix/zabbix_agentd.d/*.conf
So if you add line Include=/etc/zabbix/zabbix_agentd.d/nextcloud.conf - the service zabbix-agent wouldn't start due to error: cannot add user parameter [...] key "nextcloud" already exists

It'd be better to set username and password in /etc/zabbix/zabbix_agentd.conf.d/nextcloud.conf Because if you set them as an argument for macro and create a trigger, this credentials will be diclosed in every notification.

ВЫ можете сделать описание более подробным я 3 дня пытаюсь настроить мониторинг

Hi, I'm using this nextcloud-zabbix template, it's fine. And I was wondering if I could see something like number of currently active users, and found that the information is returned by nextcloud.serverinfo:

  <activeUsers>
   <last5minutes>6</last5minutes>
   <last1hour>8</last1hour>
   <last24hours>9</last24hours>
  </activeUsers>

But I could not find any item in the template on the zabbix server related to this data...

So, I'm trying to implement it, I mean create a new item, cloned from "Nextcloud Storage Users" but I'm afraid I'm missing some clues...

Via the zabbix configuration of NC items I did:

1. clone the "Nextcloud Storage Users" item to a newly named "Nextcloud Active Users last 5 minutes" ;
2. replaced the key with "nextcloud.activeusers.last5minutes" ;
3. in the preprocessing tab, replaced the parameters for XLM XPath to number(/ocs/data/nextcloud/activeUsers/last5minutes) ;
4. activated this item for the monitored agent.

I can see the newly created item in the widget, but no value for it...