# Initializing feeder with value from api call

**URL:** <https://community.gatling.io/t/initializing-feeder-with-value-from-api-call/4545>\
**Category:** Gatling (Open-Source)\
**Created:** [October 2, 2018, 9:31pm UTC](https://community.gatling.io/t/initializing-feeder-with-value-from-api-call/4545 "2018-10-02T21:31:01Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![jkuperus](https://avatars.discourse-cdn.com/v4/letter/j/f0a364/32.png) [@jkuperus](https://community.gatling.io/u/jkuperus)\
**Post date:** [October 2, 2018, 9:31pm UTC](https://community.gatling.io/t/initializing-feeder-with-value-from-api-call/4545/1 "2018-10-02T21:31:01Z")

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I have a custom feeder that needs to be initialized with a value that can be obtained by calling a REST API

From the looks of it I would be able to implement my own FeederBuilder in which i make rest call using plain java but it would be nice to be able to use the gatling abstractions for this.

Is there an obvious way to do this ?