Firestore emulator doesn't emit all CloudEvent properties

[dinko7]

Hello there, thank you for making this!

I'm trying to test my Firestore triggered function (as shown in the protobuf/rawevent example) against the Firestore emulator.

I've managed to wire the emulator up the point where I can receive events to my function (by using this comment).

It seems that the emulator doesn't respect the CloudEvent interface.

The error I get on receiving the event to my function (oncreatetodo is the name of the function, I've changed it from default function):

Listening on :5001
2024-09-29T15:05:53.355871  0:31:05.307182 POST    [400] /functions/projects/<project_id>/triggers/oncreatetodo
Could not decode the request as a structured-mode message. (400)
CheckedFromJsonException
Could not create `CloudEvent`.
There is a problem with "id".
Required keys are missing: id, source, specversion, type. (CheckedFromJsonException)
package:json_annotation/src/checked_helpers.dart 66:5                    $checkedNew
package:json_annotation/src/checked_helpers.dart 30:10                   $checkedCreate
package:functions_framework/src/cloud_event.g.dart 11:63                 _$CloudEventFromJson
package:functions_framework/src/cloud_event.dart 57:7                    new CloudEvent.fromJson
package:functions_framework/src/targets/cloud_event_targets.dart 105:23  _decodeValidCloudEvent
package:functions_framework/src/targets/cloud_event_targets.dart 80:10   _decodeStructured
===== asynchronous gap ===========================
package:functions_framework/src/targets/cloud_event_targets.dart 53:19   CloudEventWithContextFunctionTarget.handler
===== asynchronous gap ===========================
package:google_cloud/src/logging.dart 56:26                              _handleBadRequest.<fn>
===== asynchronous gap ===========================
package:google_cloud/src/logging.dart 64:24                              _errorWriter.<fn>

What would be the ideal solution to be able to test locally before I deploy?

EmulatedCloudEvent (all optional properties) that is used with a testing flag when running the function?
Firestore emulator respects CloudEvent interface so it's possible to test?

I'd appreciate any help!

Thanks