yggdrasil v3.3.3 Yggdrasil.Subscriber.Adapter.Postgres View Source
Yggdrasil subscriber adapter for Postgres. The name of the channel must be a binary e.g:
Subscription to channel:
iex(2)> channel = %Yggdrasil.Channel{name: "pg_channel", adapter: :postgres}
iex(3)> Yggdrasil.subscribe(channel)
:ok
iex(4)> flush()
{:Y_CONNECTED, %Yggdrasil.Channel{name: "pg_channel", (...)}}
Publishing message:
iex(5)> Yggdrasil.publish(channel, "foo")
:ok
Subscriber receiving message:
iex(6)> flush()
{:Y_EVENT, %Yggdrasil.Channel{name: "pg_channel", (...)}, "foo"}
The subscriber can also unsubscribe from the channel:
iex(7)> Yggdrasil.unsubscribe(channel)
:ok
iex(8)> flush()
{:Y_DISCONNECTED, %Yggdrasil.Channel{name: "pg_channel", (...)}}
Link to this section Summary
Link to this section Functions
Starts a Postgres distributor adapter in a channel
with some distributor
publisher
and optionally GenServer
options
.
Stops the Postgres adapter with its pid
.