Shared State Management
Explore strategies for managing shared state across federated applications, such as Redux or Context API.
What is Shared State?
In Micro Frontends, shared state refers to data that needs to be accessible and consistent across different, independently developed and deployed applications.
- Think of user authentication status, global theme settings, or shopping cart contents.
- This state isn't owned by a single micro frontend but is crucial for a cohesive user experience.
Managing this state effectively is key to building complex federated applications.
Why Shared State in MFEs?
When you have multiple micro frontends making up a single user interface, they often need to react to the same global information.
- User Experience: A user logs in on one MFE, and others need to know they're authenticated.
- Consistency: Applying a global theme preference across all parts of the application.
- Data Flow: Passing data from one MFE (e.g., product selection) to another (e.g., checkout).
Without shared state, each MFE would manage its own isolated data, leading to inconsistencies and a disjointed user journey.