Powershell connector when a user is created

Hi,

I need to trigger 3 API calls (POST)  when a user is created. These calls are meant to assign a badge, computer, and phone to the user.

In practice, I want to create a PowerShell connector that will run in the user creation process.

How should this PowerShell script be created, and how can it be triggered whenever a user creation process occurs?

Thank you,

Elena