Interface representing the status of an individual message that was sent as part of a batch request.




Optional error

An error, if the message was not handed off to FCM successfully.

Optional messageId

messageId: string

A unique message ID string, if the message was handed off to FCM for delivery.


success: boolean

A boolean indicating if the message was successfully handed off to FCM or not. When true, the messageId attribute is guaranteed to be set. When false, the error attribute is guaranteed to be set.