Flash message after redirecting from a LiveView

Phoenix Forum Questions / Help
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1

I have a form inside a LiveView, when saved it redirects back to a page that is not a LiveView.
If there is a problem saving the form the LiveView will render an error flash.
However, if the form data is saved properly and the page redirects, what is the preferred way of rendering a Flash message on the new page?

Would setting persistent session data be the best way? Or is there another simpler solution for this use case?

2

If you don’t want to pollute the session you can also stash the flash in localStorage using a bit of javascript.

3

Simplest I could think of would be to return the flash message with the url:

query_params = %{
  flash_type: "info",
  flash_message: "This is the body of the flash message"
}
redirect(socket, to: "#{return_to}?#{URI.encode_query(query_params)}"

Then, in the http controller, you would retrieve the params and set the flash message accordingly.

1 Like
4

This is super simple, thanks.