How to pass the first webservice response results value to second webservice request URL?

I don't think you can pipe results from one task to another task.
You can create your own web service that does both API calls and uses the results from the first API call to construct the url for the second API call. Your action task would run the web service you create.

Thanks TomG . So ideally I need to create my own REST webservice call. Any directions or best practices that you would like to suggest on how can I start with creation of own webservice call.
Also why is it that we can't achieve the pipe results from one task to another. The below link step 18 mentions "add JSON paths for referencing the results of your web service in piped text, to be used with other tasks in your action" . I can access these piped text label defined in my first webservice task in my second webservice task but not sure value is being passed as I get the "message": "we need a path", for my second webservice as failure reason. So I am little unclear of what exactly is done by this piped Text section?
Web Service Task

Maybe I'm miss reading the comments but you can do a OAuth2 authentication, need 2 Webservices in the work flow 1st gets the token, 2nd authenticates it using piped text from the previous task

@Adam How did you get this menu ? Do I need to type anything to get this menu of tasks and piped text IDs ?

@Neha Tank In the old UI {a} did looks like a clickable button. Don’t know why they change it