Signature:

export interface MessagingDeviceResult 

Properties

Property	Type	Description
canonicalRegistrationToken	string	The canonical registration token for the client app that the message was processed and sent to. You should use this value as the registration token for future requests. Otherwise, future messages might be rejected.
error	FirebaseError	The error that occurred when processing the message for the recipient.
messageId	string	A unique ID for the successfully processed message.

MessagingDeviceResult.canonicalRegistrationToken

The canonical registration token for the client app that the message was processed and sent to. You should use this value as the registration token for future requests. Otherwise, future messages might be rejected.

Signature:

canonicalRegistrationToken?: string;

MessagingDeviceResult.error

The error that occurred when processing the message for the recipient.

Signature:

error?: FirebaseError;

MessagingDeviceResult.messageId

A unique ID for the successfully processed message.

Signature:

messageId?: string;