error-handling-patterns

Error handling in Next.js server actions requires typed error contracts and Result types to catch failures, preventing UI crashes by returning predictable error states instead of throwing unhandled exceptions. This preserves debug context and maintains UI usability.

Resilient network requests in React use timeout strategies, retry mechanisms with exponential backoff, and circuit breakers to prevent cascading failures. This ensures failed API calls are automatically retried with a base delay before gracefully degrading the UI.

React error boundaries catch UI render errors to prevent full application crashes, enabling graceful degradation. They display user-friendly fallback messages while logging the error with context, ensuring the rest of the application remains interactive.

TypeScript supports Result types to manage predictable failures by explicitly defining success and error states in the type system. This removes ambiguity, forcing callers to handle both outcomes rather than relying on unpredictable exceptions.

You should use a circuit breaker pattern for API calls in Next.js when network requests repeatedly fail, preventing cascading failures and preserving application resilience. It stops the system from continuously attempting operations likely to fail, maintaining overall UI stability.

To preserve debug context when logging errors in a web application, capture the error alongside relevant state, request payload, and stack trace. This provides clear user communication while maintaining the necessary background information for effective troubleshooting.