sushbhat

[gentle vector]

Hello 👋
I believe you could use elements.fetchUpdate() client-side to retrieve updates made to the PaymentIntent https://stripe.com/docs/js/elements_object/fetch_updates

[frigid urchin]

ok, but how do I update the paymentintent details from client side?

our client just has clientsecret with it

[gentle vector]

If the cart changes then you'd call your own backend which can use the server-side library to update the PaymentIntent accordingly
https://stripe.com/docs/api/payment_intents/update?lang=php

And once that is successful, you'd use elements.fetchUpdate()

[frigid urchin]

backend needs paymentintent id right to update payment intent object details? but client doesn't have paymentintent so wondering how can backend know which paymentintentid to update

[gentle vector]

the text before _secret_ in the client secret should be the PaymentIntent ID

[frigid urchin]

oh I see..

[gentle vector]

An alternative would be to return the whole PaymentIntent object to client-side when you create it and store the PaymentIntent ID in your local state or a variable

[frigid urchin]

and after elements.fetchUpdate will client secret change?

[gentle vector]

It shouldn't, no.

[frigid urchin]

ok, one more thing how does elements.fetchUpdate() know which paymentintent changes to fetch on client side? does it internally look up based on client secret?

[gentle vector]

It will look it up based on the secret, yes.

[frigid urchin]

thanks!

[gentle vector]

👍