Error Handling & Retry Strategies

Four different failures can reach the same catch block: the phone is offline, the server takes too long, the server has an internal error, or the request itself is wrong. These failures need different responses. Trying again helps when the network dropped for a moment, but it never helps when the address does not exist. This lesson teaches the Users screen to tell them apart and to respond to each one correctly.

Why Requests Fail

Each failure below looks different to your code, so you can separate them:

• **No connection, or an unstable one