Add donationPaymentUrl to Event

[nickevansuk]

Proposer

EMD UK and ODI

Use Case

A number of activity providers are seeking donations for their free virtual classes in the wake of the COVID-19 pandemic lockdowns. Sessions that appear to be offered for "free" based on isAccessibleForFree and offers actually proactively ask for donations.

Why is this not covered by existing properties?

The existing properties only describe "free" sessions, and not "free with donations accepted".

Proposal

Add a new donationPaymentUrl property to Event of type URL, which can be used to both indicate that donations may be requested for the class, and include the URL that applications can link to for participants to contribute such donations.

Example

   "beta:donationPaymentUrl": "https://www.paypal.com/donate/acme_fit"

[nickevansuk]

Note that to expedite adoption of this property without slowing down other work around Virtual Events, this property has speculatively been added to the beta namespace. Comments very welcome!

[openactive-bot]

This proposal has been added to the Beta namespace as follows:

(Class) Property	Expected Type	Description
(schema:Event) beta:donationPaymentUrl	schema:URL	The URL of the webpage where the activity provider accepts donations.