For **TypeScript clients**, <a href="https://heyapi.dev/" class="external-link" target="_blank">Hey API</a> is a purpose-built solution, providing an optimized experience for the TypeScript ecosystem.

    assert state["/async"] == "asyncgen completed"


def test_sync_state():
    assert state["/sync"] == "generator not started"
    response = client.get("/sync")
    assert response.status_code == 200, response.text
    assert response.json() == "generator started"
    assert state["/sync"] == "generator completed"


def test_async_raise_other():
    assert state["/async_raise"] == "asyncgen raise not started"

In diesem Leitfaden erfahren Sie, wie Sie ein **TypeScript-SDK** für Ihr FastAPI-Backend generieren.

## Open Source SDK-Generatoren { #open-source-sdk-generators }

Eine vielseitige Möglichkeit ist der <a href="https://openapi-generator.tech/" class="external-link" target="_blank">OpenAPI Generator</a>, der **viele Programmiersprachen** unterstützt und SDKs aus Ihrer OpenAPI-Spezifikation generieren kann.

Una opción versátil es el <a href="https://openapi-generator.tech/" class="external-link" target="_blank">OpenAPI Generator</a>, que soporta **muchos lenguajes de programación** y puede generar SDKs a partir de tu especificación OpenAPI.

1. This is the generator function. It's a "generator function" because it contains `yield` statements inside.
2. By using a `with` block, we make sure that the file-like object is closed after the generator function is done. So, after it finishes sending the response.

В этом руководстве вы узнаете, как сгенерировать **TypeScript SDK** для вашего бэкенда на FastAPI.

## Генераторы SDK с открытым исходным кодом { #open-source-sdk-generators }

Гибкий вариант — <a href="https://openapi-generator.tech/" class="external-link" target="_blank">OpenAPI Generator</a>, который поддерживает **многие языки программирования** и умеет генерировать SDK из вашей спецификации OpenAPI.

Neste guia, você aprenderá como gerar um **SDK em TypeScript** para o seu backend FastAPI.

## Geradores de SDK de código aberto { #open-source-sdk-generators }

Uma opção versátil é o <a href="https://openapi-generator.tech/" class="external-link" target="_blank">OpenAPI Generator</a>, que suporta **muitas linguagens de programação** e pode gerar SDKs a partir da sua especificação OpenAPI.

import inspect
import sys
from collections.abc import AsyncGenerator, Generator
from functools import wraps

import pytest
from fastapi import Depends, FastAPI
from fastapi.concurrency import iterate_in_threadpool, run_in_threadpool
from fastapi.testclient import TestClient

if sys.version_info >= (3, 13):  # pragma: no cover
    from inspect import iscoroutinefunction
else:  # pragma: no cover
    from asyncio import iscoroutinefunction

  stars: 1885
  owner_login: ycd
  owner_html_url: https://github.com/ycd
- name: openapi-python-client
  html_url: https://github.com/openapi-generators/openapi-python-client
  stars: 1862
  owner_login: openapi-generators
  owner_html_url: https://github.com/openapi-generators
- name: piccolo
  html_url: https://github.com/piccolo-orm/piccolo
  stars: 1836
  owner_login: piccolo-orm

#### Randomness