litestar-exceptions

Map domain exceptions to RFC 9457 compliant HTTP error responses in Litestar.

13|Updated Apr 15, 2026
One-click install
npx skills add https://github.com/litestar-org/litestar-skills --skill litestar-exceptions
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: litestar-exceptions
Source: https://github.com/litestar-org/litestar-skills/tree/main/plugins/litestar/skills/litestar-exceptions
Command: npx skills add https://github.com/litestar-org/litestar-skills --skill litestar-exceptions

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill eliminates inconsistent error handling, repetitive try/except blocks in Litestar route handlers, and non-compliant error responses that fail to follow RFC 9457 or project-specific error contracts.

Core Features & Use Cases

  • Centralized Exception Translation: Map domain exceptions to consistent HTTP status codes and payloads via global handlers, removing redundant error handling code from individual routes.
  • RFC 9457 Compliant Responses: Ensure all API error responses follow standard Problem Details semantics for predictable client behavior.
  • Stable Error Contracts: Define a project-wide exception hierarchy that services can rely on for consistent error signaling.
  • Use Case: For a Litestar e-commerce API, use this Skill to define a ConflictError for duplicate order submissions, register a global handler, and ensure all order-related errors return uniform 409 responses without repeating error handling logic in every route handler.

Quick Start

Use the litestar-exceptions skill to define a custom ApplicationError base exception class, register global exception handlers in your Litestar app configuration, and map domain-specific errors like NotFoundError to consistent HTTP 404 responses across all your API endpoints.

Frequently Asked Questions about litestar-exceptions

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I handle API errors consistently in Litestar without repeating try/except blocks in every route?

To handle API errors consistently in Litestar, you can register global exception handlers that map domain exceptions to HTTP status codes, eliminating repetitive try/except blocks from individual route handlers and ensuring uniform error responses.

How do I make my Litestar API error responses compliant with RFC 9457 Problem Details?

To make Litestar API error responses RFC 9457 compliant, apply centralized exception translation to generate standard Problem Details payloads, ensuring predictable client behavior and stable error contracts across all endpoints.

What is the best way to define a domain exception hierarchy for a Litestar application?

The best way to define a domain exception hierarchy in Litestar is creating a custom ApplicationError base exception class, mapping domain-specific errors like NotFoundError to consistent HTTP 404 responses globally.

Can I map custom domain exceptions to specific HTTP status codes globally in Litestar?

Yes, you can map custom domain exceptions to specific HTTP status codes globally in Litestar by registering global exception handlers in your app configuration, removing redundant error handling logic from routes.

Why do my Litestar endpoints return inconsistent error response shapes across different routes?

Inconsistent error response shapes occur when error handling is scattered across route handlers. Centralizing exception translation via global handlers enforces a stable error contract and uniform response payloads across all API endpoints.

Does Litestar support centralized exception handlers for e-commerce API error contracts like duplicate order conflicts?

Yes, Litestar supports centralized exception handlers for e-commerce APIs, allowing you to define a ConflictError for duplicate order submissions and ensure all related errors return uniform 409 responses without repeating logic.