Can not save card details By using pre-build form

[samfernando96]

I am trying this NPM package on my react app , I want to save the card details after the payment have done. there are some docs on cashfree , but there is no clear steps for doing that(card saving) , If we can to add a parameter for controlling about saving card details on the pre-build UI forms , it is really easy for developers. And If we request for saving card details, the "Instrument_id:" should comes with the response to notify URL .

If the is any proper way to do that without calling server side API request, please let me know and share the links. personally I like, if that saving card feature comes with pre build form.