vue-router-best-practices

Prevent infinite redirect loops in Vue Router by adding conditional checks within your global beforeEach or per-route beforeEnter guards to verify authentication status before redirecting, ensuring the target path differs from the current path to avoid cyclic routing behavior.

Handle stale data from component reuse by utilizing the onBeforeRouteUpdate in-component guard, which triggers reactive data fetching and component updates when navigating between routes that share the same component but have different dynamic parameters.

Access component instances inside beforeRouteEnter guards by using the provided next callback function with a vm argument, allowing you to safely interact with the instantiated component and execute logic after navigation completes but before the component mounts.

Per-route beforeEnter guards trigger unexpectedly if route configurations are incorrectly nested or reused across multiple paths, requiring you to isolate route definitions and ensure the guard logic strictly evaluates the target route's metadata for proper SPA navigation control.

Execute asynchronous operations within Vue Router global guards by returning a Promise or utilizing async/await syntax in your beforeEach function, ensuring navigation pauses until the asynchronous data fetching or authentication verification resolves before proceeding.

Use global beforeEach guards for application-wide concerns like authentication verification, and use in-component guards like onBeforeRouteUpdate when you need localized data fetching tied directly to specific component lifecycle interactions during dynamic parameter changes.