# How to inject users in scenario

**URL:** <https://community.gatling.io/t/how-to-inject-users-in-scenario/6258>\
**Category:** Gatling (Open-Source)\
**Created:** [September 21, 2021, 5:43pm UTC](https://community.gatling.io/t/how-to-inject-users-in-scenario/6258 "2021-09-21T17:43:59Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![ghazouani\_nada](https://avatars.discourse-cdn.com/v4/letter/g/c37758/32.png) [@ghazouani\_nada](https://community.gatling.io/u/ghazouani_nada)\
**Post date:** [September 21, 2021, 5:43pm UTC](https://community.gatling.io/t/how-to-inject-users-in-scenario/6258/1 "2021-09-21T17:43:59Z")

</div>

Hello,

I am testing the authentication API, I want to launch 100 simultaneous connections to iterate 5 times with a pause of one second, for exemple I start 100 users simultaneous to login, then one second pause until reaching 500 users in total.

Please how can i achieve this.

Thanks in advance