No Big-Bang Rewrites: Running Two Frontends Without Losing Your Mind

The approach you've outlined for migrating a web application from a traditional Laravel Blade-based system to a modern React Single Page Application (SPA) is quite thorough and well-considered. Here are some key takeaways and additional insights based on your description:

Key Takeaways

1. Incremental Migration:

   • Migrate features one at a time, ensuring that both the old and new systems coexist until the migration is complete.
   • This approach minimizes risk by allowing you to test and validate each feature in isolation.

2. Feature Gating:

   • Use feature flags to control which users see the new SPA pages versus the legacy Blade views.
   • Gradually roll out features to a small subset of users before making them available to everyone, ensuring that any issues are caught early.

3. Interim Wrappers:

   • The interim wrapper pattern allows you to ship React components inside existing Blade templates, providing a smooth transition path for users and developers.
   • This approach ensures that new features can be released without disrupting the entire system.

4. SPA Component as Source of Truth:

   • Once a feature is migrated to the SPA, any changes or bug fixes should be made in the React

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