> ## Documentation Index
> Fetch the complete documentation index at: https://lib.hao.vc/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

# Idempotency

Idempotency middleware and support.

## Overview

This module provides idempotency functionality to prevent duplicate API operations.

## Components

* **FastAPI**: FastAPI-specific idempotency implementation
* **Storages**: Storage backends for idempotency keys