W3C home > Mailing lists > Public > public-payments-wg@w3.org > May 2016

Re: Call for reviews of HTTP API and Core Messages proposals

From: Dave Longley <dlongley@digitalbazaar.com>
Date: Tue, 3 May 2016 09:23:54 -0400
To: Tommy Thorsen <tommyt@opera.com>, Manu Sporny <msporny@digitalbazaar.com>
Cc: Web Payments Working Group <public-payments-wg@w3.org>
Message-ID: <5728A66A.3080300@digitalbazaar.com>
On 05/03/2016 03:37 AM, Tommy Thorsen wrote:
>     I'm a bit concerned about your "Accept: text/html;application/json" use
>     case because it makes a number of assumptions that are not clearly
>     spelled out in #128.
>     For example, the HTTP API could most likely depend on standard
>     authentication mechanisms like Digest, HTTP Signatures, Negotiate,
>     OAuth, etc. This is what this demo will do in time:
>     http://http-mediator-demo.web-payments.io/
> I guess you're right, but does that mean it's not really feasible to
> unify the two payment app types? HTTP Payments and Web Payments already
> use different user-agents. And the payee will need bespoke
> implementations for each of the two payment types. If the payment apps
> can't be shared either, what is common between the two systems?

Just because we may need two separate interfaces to communicate
with/authenticate with a Payment App doesn't mean we aren't sharing
Payment Apps. There is often more than one way to communicate with an

> Only the format of the request and response messages? That's not a whole lot...

I disagree, I think that's a big deal. I think being able to take a
payment request message that you received in one way and pass it
seamlessly to a Payment App using the API of your choice is powerful and
important. It also opens the door to all kinds of new experiences on the
Web -- in a similar way that search engine result pages have gone from a
list of blue links to information rich, interactive displays.

Dave Longley
Digital Bazaar, Inc.
Received on Tuesday, 3 May 2016 13:24:19 UTC

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