How can I use parameters in HTTP agent based items for REST API based monitoring

[apulai]

Hello,

I would like to monitor a system via REST API.

I am putting together a template, with HTTP agent based items on it.

The basic data collection is OK.

Now I would like collect only the last notification from the source system, so I would need
to add a filter to the HTTP / REST request.

I could not really figure out how to use a user macro in the query fields.
I thought this should work, and {$LAST_NOTIFICATION_ID} will be substituted, but it is not:



The macro is super simple:
{$LAST_NOTIFICATION_ID} = 832

Any advise here?

--

I would like to go also one step further:

Between my items in this template there is a key called 'id', which gets updated OK.



In fact I would like to substitute the value of this id, into my http request. "id gt 'value of(nbunotification:id)'"

Could not figure out how to do it.

Your kind help would be really appreciated.

Thanks
Andras

[cyber]

You cannot use other items value in key values...

[apulai]

Hi Cyber,

Yes that sounds totally logical: keys should be static.

But this is not what I want to do:
- I would like to use the value of a key in my query.

Here is what I trying to accomplish:
- after the first REST call key id holds the value 832.
I look at it like vairable called id = 832

- in my next REST call I would like to get only events where id is greater than 832.
So in the HTTP params i expect something like: ?query="id gt 832"

This is what I am trying to explain in the UI like this:
http query:
filter. := "id gt (value stored in variable or key called 'id') "

Thanks,
Hope I could explain it better.
Pls try to help.