Notification

Notification is a special type of message that can be marked as read and queried. Currently, there are the following types of notifications:

• NotificationType.subscription：Subscription message
• NotificationType.receivedFriendRequest：Received friend request
• NotificationType.sendFriendRequest：Sent friend request
• NotificationType.groupInvitation：Group invitation message
• NotificationType.provider：Provider information

Subscribe

Subscribe a topic with topicId, then you can receive notifications from that topic.

client.subscribeTopic(topicId);

Receive

You can use the following method to subscribe notifications from the web3mq server.

client.notificationStream.listen( (notifications) {
  // handle the notifications.
});

Read Status

You may need other side to know if you have read the notification.

client.markNotificationsRead(notificationsIds);

Query

You can query all historical notifications by types and pagination.

Page<Notification> res = await client.queryNotifications(type, pagination);