cloudevents.event_id | string | The event_id uniquely identifies the event. | 123e4567-e89b-12d3-a456-426614174000; 0001 |  |
cloudevents.event_source | string | The source identifies the context in which an event happened. | https://github.com/cloudevents; /cloudevents/spec/pull/123; my-service | |
cloudevents.event_spec_version | string | The version of the CloudEvents specification which the event uses. | 1.0 | |
cloudevents.event_subject | string | The subject of the event in the context of the event producer (identified by source). | mynewfile.jpg | |
cloudevents.event_type | string | The event_type contains a value describing the type of event related to the originating occurrence. | com.github.pull_request.opened; com.example.object.deleted.v2 | |