Chapter 11. Asynchronous error handling with Result
This chapter covers
- Learning about the problems with Cocoa style error handling
- Getting an introduction to Swift’s Result type
- Seeing how Result provides compile-time safety
- Preventing bugs involving forgotten callbacks
- Transforming data robustly with map, mapError, flatMap, and flatMapError
- Focusing on the happy path when handling errors
- Mixing throwing functions with Result
- Learning how to use errors dynamically with Result
- How to show intent with the Never type
You’ve covered a lot of Swift’s error handling mechanics, and you may have noticed in chapter 6 that you were throwing errors synchronously. This chapter focuses on handling errors from asynchronous processes, which is, ...
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