'Propagate state between different pages
I've three different MaterialPage. So I use Navigator.push to go from 1 -> 2 -> 3.
Now, page 1 make an HTTP request to GET a model that is then used in page 1, 2 and 3.
At the end of the process an action on page 3 triggers some modification of the model on the server. How can I update the tree pages on the stack to reflect these changes? In order to do that I need to make a GET request again.
Should I pass a callback from page 1 to 3 and then go back all the way up to page 1 (and then down again...), or duplicate the HTTP request in page 3? Or something else?
I've attached a schema, in order to clarify (I hope) my explanation. Thanks in advance.
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