Method channelSubUnsub

server/push.go:18–24

Subscribe or unsubscribe user to/from FCM topic (channel).

(uid types.Uid, sub bool)

// Subscribe or unsubscribe user to/from FCM topic (channel).
func (t *Topic) channelSubUnsub(uid types.Uid, sub bool) {
	push.ChannelSub(&push.ChannelReq{
		Uid:     uid,
		Channel: types.GrpToChn(t.name),
		Unsub:   !sub,
	})
}

// Prepares a payload to be delivered to a mobile device as a push notification in response to a {data} message.
func (t *Topic) pushForData(fromUid types.Uid, data *MsgServerData, msgMarkedAsReadBySender bool) *push.Receipt {