Package fcm implements push notification plugin for Google FCM backend.

Package stdout is a sample implementation of a push plugin.

Package tnpg implements push notification plugin for Tinode Push Gateway.

ChannelSub handles a channel (FCM topic) subscription/unsubscription request.

Init initializes registered handlers.

Push a single message to devices.

Register a push handler.

Stop all pushes.

New message.

Messages read: clear unread count.

New subscription.

MaxPayloadLength is the maximum length of push payload in multibyte characters.

ChannelReq is a request to subscribe/unsubscribe device ID(s) to channel(s) (FCM topic).

Payload is content of the push.

Receipt is the push payload with a list of recipients.

Recipient is a user targeted by the push.

Handler is an interface which must be implemented by handlers.