# Http\_poller and dynamic time variable
**URL:** https://discuss.elastic.co/t/http-poller-and-dynamic-time-variable/177663
**Category:** Logstash
**Created:** [April 19, 2019, 7:20pm UTC](https://discuss.elastic.co/t/http-poller-and-dynamic-time-variable/177663 "2019-04-19T19:20:10Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@lgwapnitsky](https://discuss.elastic.co/u/lgwapnitsky)
#### Post date: [April 19, 2019, 7:20pm UTC](https://discuss.elastic.co/t/http-poller-and-dynamic-time-variable/177663/1 "2019-04-19T19:20:10Z")
I have need to pull from an API where the time variables (start and end) need to be specified for a specific range in UTC format.
What is the proper way to pull these from the system, as they are not environmental variables? Is it possible to embed a ruby script into the poller section so that these variables can be generated?
Example of the api call:
`https://api.cloudflare.com/client/v4/zones/SITEKEY/logs/received?start=2019-04-18T13:30:00Z&end=2019-04-18T13:35:00Z`
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### Author:  [@Badger](https://discuss.elastic.co/u/Badger)
#### Post date: [April 19, 2019, 7:47pm UTC](https://discuss.elastic.co/t/http-poller-and-dynamic-time-variable/177663/2 "2019-04-19T19:47:25Z")
You cannot do that with an http\_poller _input_. However, you could use http\_poller just for its scheduler (or exec, or something else that has a scheduler option), then use an http _filter_ to make the request.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [May 17, 2019, 7:47pm UTC](https://discuss.elastic.co/t/http-poller-and-dynamic-time-variable/177663/3 "2019-05-17T19:47:27Z")
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