Update connection string via API

Hello,

I have a script written in Powershell to publish all the reports to powerbi service without opening it using Rest api and it is working fine.

I want to update this script which will ask user input to select the Redshift environment and point the data source selected by user.

So, the pbix report data source connection string will be updated without opening the pbix file.

I need to achieve this using Powershell script.

Please help me out achieving this scenario.

Thank you in advance.