Handling API Errors

Overview

Implement standardized API error handling with RFC 7807 Problem Details responses, centralized error middleware, typed error classes, and environment-aware stack trace exposure. Convert framework exceptions, validation failures, database errors, and upstream service failures into consistent, machine-readable error responses with appropriate HTTP status codes.

Prerequisites

• Web framework with middleware/error handler support (Express, FastAPI, Spring Boot, Gin)
• Structured logging library for error event recording with correlation IDs
• Error monitoring service: Sentry, Bugsnag, or Rollbar for production error tracking
• RFC 7807 Problem Details specification for response format guidance
• API documentation listing all possible error codes and their meanings

Instructions