Creating a User Input Form for Power Query inputs

I am working on a custom connector that will have the capability to extract tables/reports into Power BI from a web app. 

What I am struggling with is - How can I create a form like page where user can provide an input. Based on the first input(1st user input) I would populate a list of values with a radio button to allow the end user to select one of the values(2nd input). This selection I will further use in my power query to display a set of tables and reports with a checkbox, so that the user can make multiple selections(3rd input) and then extract the report(s) to power BI.

I have created a similar Web Connector in Tableau with Html/CSS/Javascripting but I am not sure if this is possible in Power BI. If Yes, then how?

Any help/link/document would be very helpful.

Thanks in advance!

TedPattison paul-maessen  

Ying Anonymous 

BIdeveloper  GuyInACube  mattmasson