# Call recursively an API
**URL:** https://discuss.elastic.co/t/call-recursively-an-api/289284
**Category:** Logstash
**Created:** [November 16, 2021, 9:06am UTC](https://discuss.elastic.co/t/call-recursively-an-api/289284 "2021-11-16T09:06:30Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Mihai\_Stuparu](https://discuss.elastic.co/u/Mihai_Stuparu)
#### Post date: [November 16, 2021, 9:06am UTC](https://discuss.elastic.co/t/call-recursively-an-api/289284/1 "2021-11-16T09:06:31Z")
Hello,
Using below basic http\_poller request I will obtain a .json file that contains an attribute called "id".
For each "id" I need to call other APIs, having the "id" value in the url: https://..../id.
How can I achieve that in logstash ?
```auto
input {
http_poller {
urls => {
snow => {
method => get
user => "..."
password => "..."
url => "..."
headers => {
Accept => "application/json"
}
}
}
request_timeout => 60
schedule => { cron => "*/2 * * * * UTC"}
codec => "json"
}
}
```
---
### Author:  [@Badger](https://discuss.elastic.co/u/Badger)
#### Post date: [November 16, 2021, 5:55pm UTC](https://discuss.elastic.co/t/call-recursively-an-api/289284/2 "2021-11-16T17:55:01Z")
You can use an http filter with a [sprintf](https://www.elastic.co/guide/en/logstash/current/event-dependent-configuration.html#sprintf) reference to add the [id] value to the data sent to the API.
---
### Author:  [@Mihai\_Stuparu](https://discuss.elastic.co/u/Mihai_Stuparu)
#### Post date: [November 17, 2021, 7:47am UTC](https://discuss.elastic.co/t/call-recursively-an-api/289284/3 "2021-11-17T07:47:30Z")
Thanks for the advise, Badger, having a short look seems it is exactly what I needed.
I'll try to do it sometime this week and give more details.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [December 15, 2021, 7:47am UTC](https://discuss.elastic.co/t/call-recursively-an-api/289284/4 "2021-12-15T07:47:47Z")
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