Complex Webview Task

Hi Guys I am using Flutterflow to build an app. I want to implement the Flutterwave payment method. I used the Flutterwave API and parsed all the required parameters into it. This will generate a unique payment link that I can display on my app using WebView. Now the only challenge I am facing is that, in the parameters I parsed to Flutterwave, I am required to provide a redirect URL. This is a URL that users will be redirected to after successful payment, but since I am using FF, it is complicated to provide a redirect url. There's no option to be redirected to an app screen because Flutterflow does not support Flutterwave payments yet, so I had to use the API method. Tell me, how do I navigate this challenge? Since the payment page is hosted by Flutterwave and I am displaying that payment page using webview on my app, it will be difficult to make it move to another screen after a successful payment.