How to Secure Separate Angular Apps with ui-router Authentication?

How to Integrate AngularJS ui-router Auth into Separate Sections

In the scenario presented, you have two sections, a homepage and a dashboard, with different angular apps. To integrate authorization using ui-router:

1. Create a Principal Service:

   • Stores user identity and provides methods for authentication and role checking.

2. Create an Authorization Service:

   • Determines if a user is authorized to access a state.
   • Redirects to sign-in or access denied pages as needed.

3. Listen to $stateChangeStart Event:

   • Check authorization when a state change is initiated.

4. Ensure User Identity is Resolved:

   • Use resolve in parent state to force identity resolution before any state change.

5. Implement Authorization in Two Places:

   • Run auth checks in both resolve and $stateChangeStart.

6. Restrict Specific States:

   • Add data with roles to states requiring authorization.

7. Integrate with View Controllers:

   • Inject principal into controllers to conditionally display elements based on authentication or role.

In your example, create a home state allowing unauthenticated users to view the homepage. Substates for the dashboard can inherit from a state requiring authentication and a specific role, such as "User."

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