# DSL: Ash.Notifier.PubSub A pubsub notifier extension. ## pub_sub A section for configuring how resource actions are published over pubsub See the [PubSub](/documentation/topics/pub_sub.md) and [Notifiers](/documentation/topics/notifiers.md) guide for more. ### Nested DSLs * [publish](#pub_sub-publish) * [publish_all](#pub_sub-publish_all) ### Examples ``` pub_sub do module MyEndpoint prefix "post" broadcast_type :phoenix_broadcast publish :destroy, ["foo", :id] publish :update, ["bar", :name] event: "name_change" publish_all :create, "created" end ``` ### Options

Name	Type	Default	Docs
module *	atom		The module to call `broadcast/3` on e.g module.broadcast(topic, event, message).
prefix	String.t		A prefix for all pubsub messages, e.g `users`. A message with `created` would be published as `users:created`
broadcast_type	:notification | :phoenix_broadcast | :broadcast	:notification	What shape the event payloads will be in. See
name	atom		A named pub sub to pass as the first argument to broadcast.

## pub_sub.publish ```elixir publish action, topic ``` Configure a given action to publish its results over a given topic. See the [PubSub](/documentation/topics/pub_sub.md) and [Notifiers](/documentation/topics/notifiers.md) guides for more. ### Examples ``` publish :create, "created" ``` ``` publish :assign, "assigned" ``` ### Arguments

Name	Type	Default	Docs
action *	atom		The name of the action that should be published
topic *	`any`		The topic to publish

### Options

Name	Type	Default	Docs
event	String.t		The name of the event to publish. Defaults to the action name
dispatcher	atom		The module to use as a dispatcher. If none is set, the pubsub module provided is used.

### Introspection Target: `Ash.Notifier.PubSub.Publication` ## pub_sub.publish_all ```elixir publish_all type, topic ``` Works just like `publish`, except that it takes a type and publishes all actions of that type See the [PubSub](/documentation/topics/pub_sub.md) and [Notifiers](/documentation/topics/notifiers.md) guides for more. ### Examples ``` publish_all :create, "created" ``` ### Arguments

Name	Type	Default	Docs
type	:create | :update | :destroy		Publish on all actions of a given type
topic *	`any`		The topic to publish

### Options

Name	Type	Default	Docs
action	atom		The name of the action that should be published
event	String.t		The name of the event to publish. Defaults to the action name
dispatcher	atom		The module to use as a dispatcher. If none is set, the pubsub module provided is used.

### Introspection Target: `Ash.Notifier.PubSub.Publication`