# FeederBuilder gatling 3.x

**URL:** <https://community.gatling.io/t/feederbuilder-gatling-3-x/4743>\
**Category:** Gatling (Open-Source)\
**Created:** [January 4, 2019, 10:46am UTC](https://community.gatling.io/t/feederbuilder-gatling-3-x/4743 "2019-01-04T10:46:21Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Arjan\_Van\_Den\_Berg](https://avatars.discourse-cdn.com/v4/letter/a/c0e974/32.png) [@Arjan\_Van\_Den\_Berg](https://community.gatling.io/u/Arjan_Van_Den_Berg)\
**Post date:** [January 4, 2019, 10:46am UTC](https://community.gatling.io/t/feederbuilder-gatling-3-x/4743/1 "2019-01-04T10:46:21Z")

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Hi Support,

I’ve a code snipped working on gatling 2.x

object Login {  
def login(feeder: FeederBuilder[\_]): ChainBuilder = {  
feed(feeder)  
…  
}  
}  
…  
.exec(Login.login(csv(“admins.csv”)))  
.exec(TaskA.taskA)

however it seems to be that the API is changed when switching to gatling 3.x …“FeederBuilder” is not avialble anymore; so i want to know what “type” to use…within gatling 3.x

Regards,  
Arjan