How to mark up an online event with Schema.org for Google?

Question

I have used the Event schema for describing an online event, but Google asks for location as a required property.

Which schema would you use? And if you used the Event schema, how would you set the location property?

<script type='application/ld+json'>
{
    "@context": "http://www.schema.org",
    "@type": "Event",
    "name": "This is the event name",
    "url": "http://example.com",
    "performer" : {
        "@type": "Person",
        "name" : "Daniel G.",
        "additionalName" : "Dani",
        "description": "This is my description"
    },
    "description": "This is the description of the event",
    "startDate": "2017-06-03T14:38:00+02:00",
    "endDate": "2017-06-03T15:08:00+02:00",
    "duration": "PT30M",
    "inLanguage": "es",
    "image" : "http://example.com/image.jpg",
    "offers": {
        "@type": "Offer",
        "price": 10,
        "availability" : "http://schema.org/InStock",
        "priceCurrency": "EUR",
        "url": "http://example.com"
    }
}
</script>

Answer 1

There is now additional markup available to describe online/offline events. For Event check out the new eventAttendanceMode property which accepts values from at least the following options (enumeration): OfflineEventAttendanceMode, OnlineEventAttendanceMode, MixedEventAttendanceMode.

Answer 2

Event is probably¹ the correct type for online events, too (and there is no other more suitable type available).

Google, according to their documentation, supports their event rich result only for physical events.

So there’s nothing you could do to get a Google rich result for your online event. You can of course keep the markup (and omit the location property).

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¹ See the issue applicability of Event to online events e.g. consider Webinar subtype.

Answer 3

According this example you can use location as URL.