Re: [provreg] Registry Fee Extension for the Extensible Provisioning Protocol

See also the EPP extension by ARI: http://ausregistry.github.io/doc/price-1.0/price-1.0.html 
which is also mentioned here: http://ariservices.com/registrars/ari-registry_implementation.pdf 

Maarten 

----- Original Message -----

| From: "Gavin Brown" <gavin.brown@centralnic.com>
| To: "Seth Goldman" <sethamin@google.com>
| Cc: "EPP Provreg" <provreg@ietf.org>
| Sent: Wednesday, 6 November, 2013 1:37:49 PM
| Subject: Re: [provreg] Registry Fee Extension for the Extensible Provisioning
| Protocol

| On 04/11/2013 22:29, Seth Goldman wrote:
| > I agree with James' suggestion that the extension should be orthogonal
| > to the billable command, and it should return the fee associated with
| > that command.

| The latest version does this - see Section 2.2 of the draft published on
| the IETF website.

| > Even better would be to have two possible modes of the extension: the
| > first would be a "dry-run" mode that would return the fee associated
| > with the command, and the second would let the registrar to pass the fee
| > with the command and have the registry fail if the fee doesn't match the
| > actual billable amount. That way there can be no confusion as to what
| > amount the registrar is getting charged.

| I was contacted off-list by another registry who have implemented an
| extension very similar to mine. Their extension provides a mechanism
| whereby the client includes the expected fee (previously obtained by
| performing a lookup) in the command. The server can then reject the
| command if the fee submitted does not match what it calculates it to be.

| This ensures that both client and server agree what the fee for the
| transaction is, before it takes place.

| I very much like this idea and am planning on incorporating it into the
| next version of my draft.

| G.

| --
| Gavin Brown
| Chief Technology Officer
| CentralNic Group plc (LSE:CNIC)
| Innovative, Reliable and Flexible Registry Services
| for ccTLD, gTLD and private domain name registries
| https://www.centralnic.com/

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