# `Bandera.Notifications.PhoenixPubSub`

Phoenix.PubSub cache-busting notifier. Subscribes to a topic and, on a flag
change broadcast by ANOTHER node, busts the local cache entry. Self-published
changes are ignored. The PubSub server name is read at runtime from
`config :bandera, cache_bust_notifications: [client: MyApp.PubSub]`.

# `child_spec`

Returns a specification to start this module under a supervisor.

See `Supervisor`.

# `start_link`

```elixir
@spec start_link(keyword()) :: GenServer.on_start()
```

Starts the notifier GenServer, which subscribes to the PubSub change topic.

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