# `Chime.Channels.Push`
[🔗](https://github.com/hattoriai/chime/blob/v0.1.0-dev/lib/chime/channels/push.ex#L1)

The `:push` channel: a notification on a person's devices, browsers by
Web Push, Apple's by APNs, Android's by FCM, with the services of the
config's `:push` (see the [Push](push.md) guide).

What it says is the notifier's `push/3` when it has one, else what the
feed shows:

    def push(data, _recipient, notification) do
      %{
        title: "#{Chime.actors(notification)} commented",
        body: data["text"],
        url: "/stories/#{data["story_id"]}",
        image: data["cover"],
        icon: "/icon-192.png",
        badge: "/badge-72.png"
      }
    end

Chime adds:

  * the link that opens the notification and reads it in the feed
    (`Chime.link/2`), from `:url`;
  * the tag of the notification's group (or its id): a newer push of
    the group replaces the one on the device, on every service;
  * the notification's id.

It goes to every device of the person that is turned on. A device a
service says is gone is forgotten, and the log says so. A push that
reaches one device or more is sent; one that fails on every device is
tried again.

---

*Consult [api-reference.md](api-reference.md) for complete listing*