implementing-error-handling

Graceful degradation allows an application to continue functioning with reduced capabilities during critical API failures. It provides fallback mechanisms so users experience limited features instead of a complete system crash.

To implement a circuit breaker for error resilience, you monitor for repeated failures and temporarily block requests to failing services. This prevents cascading failures and allows the system to recover automatically.

Choosing between exceptions and Result types depends on your language and architecture; exceptions are standard for unexpected crashes, while Result types handle expected failures explicitly without interrupting control flow.

Designing fallback strategies for API error responses involves routing requests to backup services or returning cached data. This ensures the application remains operational and provides partial results when primary endpoints fail.

You should avoid using try/catch blocks for expected operational failures or control flow, as they obscure logic and impact performance. Prefer Result types or error codes to handle anticipated errors explicitly.