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Re: Detecting if payment app is available

From: Zach Koch <zkoch@google.com>
Date: Wed, 26 Oct 2016 01:50:14 +0000
Message-ID: <CAOsZg66274SMX=KNVWqL-AEPRygDaFxtGpNkXMmswMCxUd+uQA@mail.gmail.com>
To: Mahesh Kulkarni <mahesh.kk@samsung.com>, Adrian Hope-Bailie <adrian@hopebailie.com>
Cc: Web Payments WG <public-payments-wg@w3.org>
Hi all -

I apologize for not being able to make the call last time to discuss this
proposal. I've read and have written a counter-proposal of sorts to
Mahesh's idea. Thoughts here:
https://github.com/zkoch/zkoch.github.io/blob/master/pr-detect-avail.md

The short version of the story is this:

* We support a new canMakeActivePayment() function that returns back a
boolean indicating whether or not the user has an available payment method
ready to pay within PaymentRequest
* This API can only be called once per origin per window of time (where
window of time is TBD, but something sufficient enough to reduce privacy
risk)

Hoping we can discuss more on the call on Thursday.

Thanks,

Zach

On Wed, Oct 19, 2016 at 7:23 AM Mahesh Kulkarni <mahesh.kk@samsung.com>
wrote:

> Thanks Adrian, I agree that group needs to review this concern before we
> go CR.
>
> Just a quick reminder for the group to review the proposal,
> https://github.com/maheshkk/webpayments/wiki/Detecting-if-payment-app-is-available
>
> Discussion on this topic is in the agenda for tomorrow’s WG call and I
> hope we can spend few mins discussing on this more tomorrow.
>
>
>
> Thanks
>
> Mahesh
>
>
>
> *From:* Adrian Hope-Bailie [mailto:adrian@hopebailie.com]
> *Sent:* Wednesday, October 5, 2016 4:14 AM
> *To:* Mahesh Kulkarni <mahesh.kk@samsung.com>
> *Cc:* Web Payments WG <public-payments-wg@w3.org>
> *Subject:* Re: Detecting if payment app is available
>
>
>
> Hey Mahesh,
>
> Thanks for putting this together. As you say, this is already possible
> today through long-lived cookies, iframes as long as the app consents to
> give the info to the merchant.
>
> I think we should definitely explore this and discuss with some urgency if
> it's something we think is required before we go to CR.
>
> Adrian
>
>
>
> On 5 October 2016 at 09:46, Mahesh Kulkarni <mahesh.kk@samsung.com> wrote:
>
> Hello WPWG members,
>
>
>
> Following up on our discussion about this topic from f2f meeting.
>
>
>
> I have prepared a problem statement and very early draft of proposals I
> had in mind on how merchants can securely check if a certain payment app is
> available.
>
>
>
> You can find the document here,
>
>
> https://github.com/maheshkk/webpayments/wiki/Detecting-if-payment-app-is-available
>
>
>
> Please share if you have any questions or feedback! Also let me know if it
> is easier to discuss this by creating an issue in github and moving the
> content from wiki to this issue.
>
>
>
> Thanks
>
> Mahesh
>
>
>
Received on Wednesday, 26 October 2016 01:50:54 UTC

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