bodhilogic
I’ve been playing with GenServer timers and what I would like to do is run a GenServer timer that, when it processes the handle_info() call, causes the web application to redirect to another page. A bonus would be for the redirect to happen only if the user has not interacted with the page since the timer started (i.e. clicking on a button or editing a field resets the timer back to time zero).
My problem is that the redirection requires the conn ‘object’ as one of the parameters but the GenServer, as far as I can see, has no way to obtain the conn ‘object’.
Is there a way to get hold of the conn ‘object’ from within the GenServer ‘processing’?
Or am I doing it completely wrong?
Thanks for taking the time to answer!
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peerreynders
If the user doesn’t interact with the page then there is no HTTP request.
So unless you are using LiveView there isn’t anything you can do. The timer would have to be based on the client-side (i.e. the browser) and make a request when there is no activity.
With LiveView you would simply change what is currently rendered on the page after the timeout expires - but there is no redirect involved.
EDIT: I forgot about channels - i.e. you might be able to use them to have the server send a message (at timeout) to the browser and have some browser-based code take some action.