A pubsub notifier extension.

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index

Index

• pub_sub
  • publish
  • publish_all

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Docs

pub_sub

pub_sub

A section for configuring how resource actions are published over pubsub

See the PubSub and Notifiers guide for more.

• publish
• 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

• :module (atom/0) - Required. The module to call broadcast/3 on e.g module.broadcast(topic, event, message).

• :prefix (String.t/0) - A prefix for all pubsub messages, e.g users. A message with created would be published as users:created

• :broadcast_type - What shape the event payloads will be in. :notification just sends the notification, phoenix_broadcast sends a %Phoenix.Socket.Broadcast{}, and :broadcast sends %{topic: <topic>, event: <event>, notification: <notification>} The default value is :notification.

• :name (atom/0) - A named pub sub to pass as the first argument to broadcast.
  If you are using a phoenix Endpoint module for pubsub then this is unnecessary. If you want to use a custom pub sub started with something like {Phoenix.PubSub, name: MyName}, then you can provide MyName to here.

publish

publish

Configure a given action to publish its results over a given topic.

See the PubSub and Notifiers guides for more.

Examples:

publish :create, "created"

publish :assign, "assigned"

• :action (atom/0) - Required. The name of the action that should be published

• :topic - Required. The topic to publish

• :event (String.t/0) - The name of the event to publish. Defaults to the action name

• :dispatcher (atom/0) - The module to use as a dispatcher. If none is set, the pubsub module provided is used.

publish_all

publish_all

Works just like publish, except that it takes a type and publishes all actions of that type

See the PubSub and Notifiers guides for more.

Examples:

publish_all :create, "created"

• :type - Publish on all actions of a given type

• :action (atom/0) - The name of the action that should be published

• :topic - Required. The topic to publish

• :event (String.t/0) - The name of the event to publish. Defaults to the action name

• :dispatcher (atom/0) - The module to use as a dispatcher. If none is set, the pubsub module provided is used.