# `Tayori.Notifier`
[🔗](https://github.com/hattoriai/tayori/blob/v0.1.0/lib/tayori/notifier.ex#L1)

What the app does when an entry is published, beyond what Tayori sends
itself (the emails of the `:subscriptions` feature, the webhooks of the
`:webhooks` feature): a push, an email to the app's own users, a post
elsewhere. The app knows its readers, its mailer and its voice.

    defmodule MyApp.NewsNotifier do
      @behaviour Tayori.Notifier

      @impl true
      def published(entry) do
        MyApp.Push.news(entry)
      end
    end

    {Tayori, repo: MyApp.Repo, pubsub: MyApp.PubSub, notifier: MyApp.NewsNotifier}

`c:published/1` is called once for each publication of an entry, by
one node of the cluster, when the entry is published or, for a
scheduled entry, when its time comes. An entry unpublished and published
again is announced again.

With the `:oban` option it runs in a job of `Tayori.Worker`, retried
when it raises; without, in a task, where a crash is logged (see
`Tayori.Jobs`).

The entry has its translations, so the app can send each reader the
language they read (`Tayori.Entry.translation/3`), and its segments, so
it can send it to the readers it is for.

# `published`

```elixir
@callback published(Tayori.Entry.t()) :: any()
```

---

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