Re: Proposal for a "Web Payments Digital Product Management API"

Doesn't removing amount as a mandatory field make doing the dynamic linking
element of PSD2 SCA super hard? +Adrian@coil.com - how would your proposal
work if the amount wasn't available from the requesting merchant?

N

On Wed, 6 May 2020, 6:10 am Chitalia, Jalpesh, <jchitali@visa.com> wrote:

> That's a long time coming:  making amount optional in a payment request is
> essential, imho.  While amount is necessary to provide better secure
> experience / comprehension, there is also a point to be made for use cases
> (like one mentioned below) where amount is not available prior to
> requesting payment credentials and / or profile information (e.g. contact,
> delivery address).  And ideally, payment request should be flexible enough
> to provide options for existing and future merchant checkout experiences.
>
>
>
> -jalpesh
>
>
>
> *From: *Matt Giuca <mgiuca@chromium.org>
> *Date: *Tuesday, May 5, 2020 at 9:22 PM
> *To: *Rouslan Solomakhin <rouslan@google.com>
> *Cc: *Ian Jacobs <ij@w3.org>, "Liquan (Max) Gu" <maxlg@google.com>, Web
> Payments Working Group <public-payments-wg@w3.org>
> *Subject: *Re: FYI: Proposal for a "Web Payments Digital Product
> Management API"
> *Resent-From: *<public-payments-wg@w3.org>
> *Resent-Date: *Tuesday, May 5, 2020 at 9:21 PM
>
>
>
> Hi Web Payments folks,
>
>
>
> Thanks, as Ian said, feedback on the proposal is appreciated. (The latter
> was proposed by Max, not me.)
>
>
>
> I am putting together a more concrete explainer on this proposal which
> should hopefully be ready this week, but general thoughts on this direction
> are appreciated any time.
>
>
>
> Matt
>
>
>
> On Tue, 5 May 2020 at 05:22, Rouslan Solomakhin <rouslan@google.com>
> wrote:
>
> +Liquan (Max) Gu <maxlg@google.com> is also involved in this work and
> would appreciate feedback.
>
>
>
> On Mon, May 4, 2020 at 3:20 PM Ian Jacobs <ij@w3.org> wrote:
>
> Dear Web Payments Working Group,
>
> I came upon a somewhat recent proposal within the Web Incubator Community
> Group for a "Web Payments Digital Product Management API” that would work
> in conjunction with Payment Request. Here’s the proposal from Matt Giuca
> (of the Chrome Team):
>
> https://discourse.wicg.io/t/proposal-web-payments-digital-product-management-api/4350
> <https://nam01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdiscourse.wicg.io%2Ft%2Fproposal-web-payments-digital-product-management-api%2F4350&data=02%7C01%7Cjchitali%40visa.com%7Cfb0f602f2c754489d60008d7f1751e15%7C38305e12e15d4ee888b9c4db1c477d76%7C0%7C0%7C637243357657200037&sdata=5WpUJu%2FfYpuY6c92%2B8cXor7QS6Tzvvh%2Fubsa3XZG5Pk%3D&reserved=0>
>
> Problem statement:
>
>    "The problem we are trying to solve is that Payment Request by itself
> is inadequate for making in-app purchases in existing digital stores,
> because that API simply asks the user to make a payment of a certain amount
> (e.g., “Please authorize a transaction of US$3.00”), which is sufficient
> for websites selling their own products, but established digital
> distribution services require apps to make purchases by product IDs, not
> monetary amounts (e.g., “Please authorize the purchase of SHINY_SWORD”);
> the price being configured per-region on the backend.”
>
> Matt Giuca raised an issue on the Payment Request API that would make the
> proposal easier to integrate:
>
>  Make "total" and "details" optional
>  https://github.com/w3c/payment-request/issues/912
> <https://nam01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fw3c%2Fpayment-request%2Fissues%2F912&data=02%7C01%7Cjchitali%40visa.com%7Cfb0f602f2c754489d60008d7f1751e15%7C38305e12e15d4ee888b9c4db1c477d76%7C0%7C0%7C637243357657210031&sdata=rnt%2FAwY7i4Y0a1zu8Gjdu9OEXccT9visFKbghU7AFvY%3D&reserved=0>
>
> I’m sure Matt would appreciate feedback on either or both of the proposal
> and the pull request. Thanks!
>
> Ian
>
> --
> Ian Jacobs <ij@w3.org>
> https://www.w3.org/People/Jacobs/
> <https://nam01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.w3.org%2FPeople%2FJacobs%2F&data=02%7C01%7Cjchitali%40visa.com%7Cfb0f602f2c754489d60008d7f1751e15%7C38305e12e15d4ee888b9c4db1c477d76%7C0%7C0%7C637243357657210031&sdata=H7jKJfcD0tCZEby5Lh4ZqVqp21vEhb7q78WzEnX12Fg%3D&reserved=0>
> Tel: +1 718 260 9447 <(718)%20260-9447>
>
>
>
>
>