boltun v0.0.4 → Overview → Boltun → Listener

Boltun.Listener

Listens to Postgrex notifications and invokes the registed callbacks.

Summary↑

add_callback(listener, channel, value)	Adds a callback to the given channel
remove_channel(listener, channel)	Removes all callbacks for the given channel
start_link(opts, server_opts)	Starts a listener. Expects a keyword list with the following parameters `:connection` => pid or name of the connection to the database `:callbacks_agent` => pid or name of the agent keeping track of the callbacks
stop(listener)	Stops this listener and deregisters all channels

add_callback(listener, channel, value)

(function) # ↑

Adds a callback to the given channel

remove_channel(listener, channel)

(function) # ↑

Removes all callbacks for the given channel

start_link(opts, server_opts)

(function) # ↑

Starts a listener. Expects a keyword list with the following parameters

:connection => pid or name of the connection to the database
:callbacks_agent => pid or name of the agent keeping track of the callbacks

and a keyword list with GenServer specific options, like :name.

stop(listener)

(function) # ↑

Stops this listener and deregisters all channels