0Pricing
Swift Academy · Lesson

Custom Error Types with LocalizedError

Designing rich error enums that conform to Error and LocalizedError.

Welcome

Well-designed error types carry enough context to diagnose problems and display user-friendly messages. `LocalizedError` provides the hooks for that.

Basic Error Enum

```swift enum AuthError: Error { case invalidCredentials case accountLocked(until: Date) case networkUnavailable } ```

All lessons in this course

  1. Result Fundamentals
  2. map and flatMap on Result
  3. Custom Error Types with LocalizedError
  4. Bridging Result to async/await
← Back to Swift Academy