What are Route Guards?
Route guards are functions that run before or during navigation to control access to routes in a Vue application.
Types of Route Guards
| Type | Usage |
|---|---|
| Global Guards | Applied to all routes |
| Per-Route Guards | Defined inside route config |
| In-Component Guards | Defined inside components |
Global Before Guard
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Per-Route Guard
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In-Component Guard
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Common Use Cases
- Authentication check
- Authorization control
- Redirecting users
- Preventing access to certain routes
Navigation Flow
Guards run in sequence before navigation is confirmed, allowing control over routing behavior.
Best Practices
- Use global guards for auth checks
- Keep guard logic simple
- Avoid heavy operations in guards
- Use meta fields for route rules
Common Mistakes
- Forgetting to call next()
- Blocking navigation unintentionally
- Using complex logic inside guards
- Not handling async operations properly
Conclusion
Route guards are essential for controlling navigation and securing routes in Vue applications.