Controllers provide a #channel method, that you can use to get the status of the connection to the backend. Channel's access methods are reactive and when the status changes, the watching computations will be re-triggered. It provides the following:
| method | description |
|---|---|
| connected? | true if it is connected to the backend |
| status | possible values: :opening, :open, :closed, :reconnecting |
| error | the error message for the last failed connection |
| retry_count | the number of reconnection attempts that have been made without a successful connection |
| reconnect_interval | the time until the next reconnection attempt (in seconds) |
Sometimes you need to run code when the client connects or disconnects to/from the server. In a controller on the client you can do:
channel.on('connect') do
.. connected ..
end
channel.on('disconnect') do
.. disconnect ..
end