# Histoire, conception et avenir { #history-design-and-future }

Il y a quelque temps, [un utilisateur de **FastAPI** a demandé](https://github.com/fastapi/fastapi/issues/3#issuecomment-454956920) :

> Quelle est l'histoire de ce projet ? Il semble être sorti de nulle part et est devenu génial en quelques semaines [...].

Voici un petit bout de cette histoire.

## Alternatives { #alternatives }

# Historia, Diseño y Futuro { #history-design-and-future }

Hace algún tiempo, [un usuario de **FastAPI** preguntó](https://github.com/fastapi/fastapi/issues/3#issuecomment-454956920):

> ¿Cuál es la historia de este proyecto? Parece haber surgido de la nada y ser increíble en pocas semanas [...]

Aquí hay un poquito de esa historia.

## Alternativas { #alternatives }

# Witness Protocol Feature - Detailed Design Document

## 1. Overview

The SMB Witness Protocol enables rapid notification of resource changes in a clustered file server environment. It provides fast failover capabilities by allowing clients to register for notifications about server node availability, share movement, and other critical cluster events.

## 2. Protocol Specification Reference

- **MS-SWN**: Service Witness Protocol Specification

# Geschichte, Design und Zukunft { #history-design-and-future }

Vor einiger Zeit fragte [ein **FastAPI**-Benutzer](https://github.com/fastapi/fastapi/issues/3#issuecomment-454956920):

> Was ist die Geschichte dieses Projekts? Es scheint aus dem Nichts in ein paar Wochen zu etwas Großartigem geworden zu sein [...]

Hier ist ein wenig über diese Geschichte.

## Alternativen { #alternatives }

# Geçmişi, Tasarımı ve Geleceği { #history-design-and-future }

Bir süre önce, [bir **FastAPI** kullanıcısı sordu](https://github.com/fastapi/fastapi/issues/3#issuecomment-454956920):

> Bu projenin geçmişi nedir? Birkaç hafta içinde hiçbir yerden harika bir şeye dönüşmüş gibi görünüyor [...]

İşte o geçmişin bir kısmı.

## Alternatifler { #alternatives }

# История, проектирование и будущее { #history-design-and-future }

Однажды, [один из пользователей **FastAPI** задал вопрос](https://github.com/fastapi/fastapi/issues/3#issuecomment-454956920):

> Какова история этого проекта? Создаётся впечатление, что он явился из ниоткуда и завоевал мир за несколько недель [...]

Что ж, вот небольшая часть истории проекта.

## Альтернативы { #alternatives }

# 역사, 디자인 그리고 미래 { #history-design-and-future }

얼마 전, [한 **FastAPI** 사용자가 이렇게 물었습니다](https://github.com/fastapi/fastapi/issues/3#issuecomment-454956920):

> 이 프로젝트의 역사는 무엇인가요? 몇 주 만에 아무 데서도 갑자기 나타나 엄청나게 좋아진 것처럼 보이네요 [...]

여기서 그 역사에 대해 간단히 설명하겠습니다.

## 대안 { #alternatives }

저는 여러 해 동안 복잡한 요구사항(머신러닝, 분산 시스템, 비동기 작업, NoSQL 데이터베이스 등)을 가진 API를 만들면서 여러 개발 팀을 이끌어 왔습니다.

그 과정에서 많은 대안을 조사하고, 테스트하고, 사용해야 했습니다.

# SMB3 Lease Feature - Detailed Design Document

## 1. Overview

SMB3 leases provide a client caching mechanism that replaces the traditional oplock mechanism. Leases enable better performance through client-side caching while maintaining cache coherency across multiple clients.

## 2. Protocol Specification Reference

- **MS-SMB2 Section 2.2.13**: SMB2 CREATE Request with Lease Context
- **MS-SMB2 Section 2.2.14**: SMB2 CREATE Response with Lease State

# Persistent Handles Feature - Detailed Design Document

## 1. Overview

Persistent handles (also known as durable handles) allow SMB3 connections to survive network disconnections, server reboots, and client reconnections. This feature is critical for enterprise reliability and seamless failover scenarios.

## 2. Protocol Specification Reference

- **MS-SMB2 Section 2.2.13.2.3**: SMB2_CREATE_DURABLE_HANDLE_REQUEST

# Directory Leasing Feature - Detailed Design Document

## 1. Overview

Directory leasing extends the SMB3 lease concept to directories, enabling client-side caching of directory metadata and change notifications. This significantly improves performance for applications that frequently enumerate directories or monitor directory changes.

## 2. Protocol Specification Reference

- **MS-SMB2 Section 2.2.13.2.12**: SMB2_CREATE_REQUEST_LEASE_V2 for directories