[jdev] pubsub and paid for content

Peter Saint-Andre stpeter at stpeter.im
Thu Apr 3 11:56:13 CDT 2008

Roelof Naude wrote:
> Peter Saint-Andre said the following on 04/02/2008 07:21 PM:
>> Roelof Naude wrote:
>>> hi all,
>>> we are currently brainstorming about pubsub. some of the content that
>>> one may provide, needs to be paid for, e.g. live share price updates.
>> Cool, we'll finally get to use the <payment-required/> error. :)
>>> (most providers can provide a delayed feed for a fixed fee. but why
>>> settle for a delayed feed if we can get a live feed?)
>>> what would be the best practice to allow only paid subscribers access to
>>> such content?
>> In general I think you would associate someone's JabberID with your
>> database of paying customers. If someone attempts to subscribe to a
>> for-pay node but they have not paid for access to that node, you would
>> return a payment-required error. Probably you would use "leased
>> subscriptions" as outlined in XEP-0060 -- e.g., a subscription lasts for
>> 1 year and then you must renew.
> the leased subscription option looks great. from my understanding the
> onus rest with the client to specify the leasing period? is there a way
> to either:
> 1. specify the leasing period per node during node creation (as an
> config option?)
> or
> 2. have an external entity modify the leasing period per subscription?

I think #2 is preferable, but you'd probably do that via an interface
between your billing system and the pubsub service, not directly over
XMPP. Just keep extending the lease as the money comes in. :) Also I
don't think you'd want the leases to be configured on a per-node basis,
because IMHO that would be more complex than you really need.


Peter Saint-Andre

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