Re: [PROPOSED WORK ITEM] VP Request Specification (for CHAPI etc)

I'd like to support this work, we've recently spent a bunch of time using
this stuff, and I am eager to ensure that this like the ongoing
https://github.com/decentralized-identity/presentation-exchange spec, are
as aligned as possible.

OS



On Mon, May 4, 2020 at 5:25 PM Dmitri Zagidulin <dzagidulin@gmail.com>
wrote:

> *New Work Item Proposal*
>
> This data model specification describes a declarative JSON-based query
> language used by applications to perform requests for Verifiable
> Presentations to wallets and agents.
>
> The Credential Handler API
> <https://w3c-ccg.github.io/credential-handler-api/> (CHAPI) spec is an
> existing Work Item of this community group, and has seen increased
> implementation and discussion activity recently (for example, the CHAPI and
> DIDComm overview presentations given at last week's IIW conference resulted
> in a lot of great questions and expression of interest). And if the CHAPI
> spec describes a protocol, a simple communication pipe over which apps can
> communicate with wallets through a web browser, then the VP Request Spec
> work item proposed in this email, is a data model complement to it.
>
> Is the CHAPI protocol bound to the VP Request Spec data model? No, you can
> use CHAPI to pass on other types of messages and requests.
>
> Is the VP Request Spec limited only to CHAPI? No, you can use this
> declarative query syntax with other protocols, such as by wrapping it in
> DIDComm messages, or by serializing it into URLs, for use with inter-app
> communication within mobile operating systems.
>
> What is the relationship between the VP Request format and query formats
> used by DIDComm? That is partly what we hope to explore and come to
> consensus on in this proposed work item! In general, we believe that these
> formats can be complementary and inter-operable.
>
> *Include Link to Abstract or Draft*
>
> https://digitalbazaar.github.io/vp-request-spec/
>
> *Owners*
>
> Dave Longley
> Mike Varley
> Dmitri Zagidulin
>


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