Return data from a webview to the bot

Summary

How do I return the data from a webview to the invoking bot?

Content

Hi Developers,

I tried the "System.Webview" component but I am unable to understand how the variable can be sent back to the bot. 

I see a URL to a connector sent to the webview server in the request body when the url is opened from the bot screen. Should I make any POST request to that URL to intimate bot that action is complete? If yes, what parameters should be sent? If no, can you please tell the way to implement this at the server side?