TestConnection handler for On-Premises Data Gateway not working

[Anonymous]

Hey guys,
I'm trying to make my custom connector work through the on-premises data gateway, and as i've read here, i need to make a TestConnection handler. The examples given illustrate the cases when you have only an url, or multiple non url parameters.
The thing is, on my shared main function, i ask the user for an URL and other 2 parameters, and i don't know how to make it work. 
Anyone knows the syntax for this?

Thank you.

[Anonymous]

UPDATE: I just realized that i don't have an url as parameter, is of type text. I don't know if its the best practice, but i don't really need a url of Uri.Type because i don't implement an OAuth flow. Also, it is working fine on PBI Desktop. I'm going to try to make the gateway work with this.