Chapter 11. Error handling and recovery
This chapter covers
- Reacting to errors
- Properly freeing resources
- Dealing with backpressure
Errors happen; that’s a fact of programming life. To provide high-quality service to the users of your applications, you must make sure your code handles errors and gracefully recovers when they happen. Otherwise, users experience application crashes or incorrect behavior (such as wrong computations or unexpected alerts) that can eventually turn them away from your product. In the case of an error, you might want to swallow it and continue, or add specific handling for a specific error. If an observable periodically emits updates from a central server, and one of the updates causes an unexpected error (for ...