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Re: [Uri-review] Review request for payto URI scheme

From: David Nicol <davidnicol@gmail.com>
Date: Sun, 30 Apr 2017 20:23:43 -0500
Message-ID: <CAFwScO8n6Yn_RsTw0j0iojhjikgjPiUSJuwzEoS7QOuUVjMhuA@mail.gmail.com>
To: Florian Dold <florian.dold@inria.fr>
Cc: Web Payments <public-webpayments@w3.org>
Speaking as one of the earliest persons to propose this kind of thing,
in 1996, I believe the draft could benefit from some suggestions
concerning sensible syntaces in the "message" field, which might
better be pulled out into top-level fields. These fields would
include, for instance, a specific name for a field that represents a
specific offer that the payment is made in purchase of, for use in
reduced-clicking shopping catalogs for instance. On the other hand,
given the state of the art of shopping cart software, it does make
sense to delegate the definition of the entirety of the "message"
field to the implementors of a shopping cart, rather than usurping
their freedoms through overzealous standardization.

I hope this comment is useful, thank you, the draft looks entirely
workable, even though the conflation of "currency" as a prefix to
"amount" instead of making "currency" another top-level field seems a
little odd.

Is Payto envisioned as supporting multiple alternative prices in
different currencies in one URL, or multiple amounts in multiple
currencies together as a multi-part price? (this thing costs three AUD
and two EUR, that's what we need to produce and deliver it, and it is
more convenient for us to just receive both instead of having to
convert them on our side) And if so, how are the multiple fields
differentiated? Easy to imagine various kinds of extensions, but also
such things would introduce unnecessary complexity.

But still, for curiousity, why is currency an amount prefix rather
than its own field?

> This is a review request for the registration of the payto URI scheme,
> as per RFC 7595.
> It is specified in the following Internet Draft:
> https://datatracker.ietf.org/doc/draft-dold-payto/
> Cheers,
> Florian

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Received on Monday, 1 May 2017 01:24:17 UTC

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