Advanced Navigation in Flutter Web: A Deep Dive with Go Router

You're building a Flutter web app. It's going well, a few screens, a handful of routes, Navigator.push everywhere. Then the product team asks for authenticated routes, deep links from emails, a persistent bottom nav bar that survives screen transitions, and shareable URLs that actually work when someone pastes them into a browser. Suddenly, your Navigator stack looks less like a router and more like a liability. This is the moment most Flutter web developers hit the wall with traditional navigat