# Webhooks de OpenAPI

Hay casos donde quieres decirle a los **usuarios** de tu API que tu aplicación podría llamar a *su* aplicación (enviando una request) con algunos datos, normalmente para **notificar** de algún tipo de **evento**.

Esto significa que en lugar del proceso normal de tus usuarios enviando requests a tu API, es **tu API** (o tu aplicación) la que podría **enviar requests a su sistema** (a su API, su aplicación).

Esto normalmente se llama un **webhook**.

```

</div>

## In Detail { #in-detail }

The marker `@pytest.mark.anyio` tells pytest that this test function should be called asynchronously:

{* ../../docs_src/async_tests/test_main.py hl[7] *}

/// tip

Note that the test function is now `async def` instead of just `def` as before when using the `TestClient`.

///

Then we can create an `AsyncClient` with the app, and send async requests to it, using `await`.

```

////

//// tab | Python 3.10+ без Annotated

/// tip | Подсказка

По возможности используйте версию с `Annotated`.

///

```Python
{!> ../../docs_src/app_testing/app_b_py310/main.py!}
```

////

//// tab | Python 3.8+  без Annotated

/// tip | Подсказка

По возможности используйте версию с `Annotated`.

///

```Python

Te mostraré algunos de los conceptos principales que probablemente deberías tener en cuenta al desplegar una aplicación **FastAPI** (aunque la mayoría se aplica a cualquier otro tipo de aplicación web).

/// tip

In the next chapter, you will see a real secure implementation, with password hashing and <abbr title="JSON Web Tokens">JWT</abbr> tokens.

But for now, let's focus on the specific details we need.

///

{* ../../docs_src/security/tutorial003_an_py310.py hl[87] *}

/// tip

///

## Order the parameters as you need { #order-the-parameters-as-you-need }

/// tip

This is probably not as important or necessary if you use `Annotated`.

///

Let's say that you want to declare the query parameter `q` as a required `str`.

To do this, use `yield` instead of `return`, and write the extra steps (code) after.

/// tip

Make sure to use `yield` one single time per dependency.

///

/// note | Technical Details

Any function that is valid to use with:

Nếu bạn sử dụng **Git** (nên làm), hãy thêm một file `.gitignore` để Git bỏ qua mọi thứ trong `.venv`.

/// tip

Nếu bạn sử dụng <a href="https://github.com/astral-sh/uv" class="external-link" target="_blank">`uv`</a> để tạo môi trường ảo, nó đã tự động làm điều này cho bạn, bạn có thể bỏ qua bước này. 😎

///

/// tip

Làm điều này **một lần**, ngay sau khi bạn tạo môi trường ảo.

///

<div class="termy">

dialects=("sqlite" "mysql" "postgres" "gaussdb" "sqlserver" "tidb")

if [[ $(pwd) == *"gorm/tests"* ]]; then
  cd ..
fi

if [ -d tests ]
then
  cd tests
  go get -u -t ./...
  go mod download
  go mod tidy
  cd ..
fi

# SqlServer for Mac M1
if [[ -z $GITHUB_ACTION && -d tests ]]; then
  cd tests
  if [[ $(uname -a) == *" arm64" ]]; then
    MSSQL_IMAGE=mcr.microsoft.com/azure-sql-edge docker compose up -d --wait

Для этого используйте `yield` вместо `return`, а дополнительный код напишите после него.

/// tip | Подсказка

Обязательно используйте `yield` один-единственный раз.

///

/// note | Технические детали

Любая функция, с которой может работать: