There is some inconsistency in the description of the edit route in focus for the text’s example.
I believe the intent is to discuss/describe the handling of the live_action through the ProductLive.Index module. The text shows a use of the “live” macro in the router file as having the path of /product/:id/edit. This should be /products/:id/edit.
It would also be worth pointing out (somewhere) the distinct route to the other edit action via ProductLive.Show - with the different path.
Great book. Loving every minute!