How to get items details in the loadable module?

[Reanimator]

Hello,
I want to export specific metrics from Zabbix to Kafka in real time. Looking forward to using a separate loadable module and implement history synchronization but facing the items' filtering problem. Could anyone advise me how to get details of items in it?

[Luiz Antonio Oliveira]

only api...

Explain your problem better

[Reanimator]

I need to export items with the specific keys to Kafka. And now trying to figure out how to do this filtering in a loadable module.

[Luiz Antonio Oliveira]

item.get
itemid
search : { key_ : "agent.ping" }


history.get
itemid : itemid

[Reanimator]

Thank you. But I'd like to use callbacks in loadable modules:

static void	dummy_history_float_cb(const ZBX_HISTORY_FLOAT *history, int history_num)
{
	int	i;
 
	for (i = 0; i < history_num; i++)
	{
		/* do something with history[i].itemid, history[i].clock, history[i].ns, history[i].value, ... */
	}
}

https://www.zabbix.com/documentation/3.2/manual/config/items/loadablemodules

Could you please advise me anything for this case?

[jan.garaj]

Maybe DBget_item_value(). How to use it? You have to figure it out. There is no official example. Also usage of any internal zabbix function is not supported officially. Official proper approach: write own DB access/caching layer.

API usage is very slow and it will add a lot of latency in this case.

Anyway open feature request + I'll be happy, if you share your proper C solution.