Oidc4vp request uri with post

[ThierryThevenet]

in case the verifier adds a request_uri_method = post in the authorization request

request_uri_method:

• OPTIONAL. A string determining the HTTP method to be used when the request_uri parameter is included in the same request. Two case-sensitive valid values are defined in this specification: get and post. If request_uri_method value is get, the Wallet MUST send the request to retrieve the Request Object using the HTTP GET method, i.e., as defined in [RFC9101]. If request_uri_method value is post, a supporting Wallet MUST send the request using the HTTP POST method as detailed in Section 5.10. If the request_uri_method parameter is not present, the Wallet MUST process the request_uri parameter as defined in [RFC9101]. Wallets not supporting the post method will send a GET request to the Request URI (default behavior as defined in [RFC9101]). request_uri_method parameter MUST NOT be present if a request_uri parameter is not present.

Then the wallet must call the verifier with a POST request

https://openid.net/specs/openid-4-verifiable-presentations-1_0.html#name-request-uri-method-post

No specific wallet metadata to be added in the wallet request