error-handling

Implement structured error handling by defining a base typed error class with specific subclasses carrying error codes and status. This creates explicit error contracts and consistent JSON responses across TypeScript, Python, and Go services.

Handle transient failures using exponential backoff strategies and retry guards. This resilience pattern safely retries failed network requests or service calls without overwhelming the system during temporary outages.

Set up global exception boundaries by wiring central error handlers in your FastAPI, Next.js, or Go HTTP layers. These boundaries catch unhandled exceptions and return consistent JSON error responses to the client.

Map internal error codes to safe user-facing messages through a centralized error handler. This handler returns friendly messages to users while simultaneously logging full error context and stack traces server-side for developers.

Yes, you can use result-style error handling by returning { ok, value } or { ok, error } objects. This pattern avoids throwing exceptions in critical hot paths, ensuring predictable execution flow in TypeScript and Python.

A circuit breaker pattern stops sending requests to a failing downstream service, preventing cascading failures. Use it in production apps to maintain system resilience when dependencies experience sustained outages.