built_messaging library Null safety

Classes

BasicMessagePayload
A basic built value for MessagePayloadRule
BasicMessagePayloadBuilder
MessagePayload<Data>
A custom built value for MessagePayloadRule
MessagePayloadBuilder<Data>
MessagePayloadRule<Data>
Interface representing a Firebase Cloud Messaging message payload. One or both of the data and notification keys are required.
MessagePayloadRuleBuilder<Data>
NotificationPayload
Interface representing an FCM legacy API notification message payload. Notification messages let developers send up to 4KB of predefined key-value pairs. Accepted keys are outlined below.
NotificationPayloadBuilder