///

/// note

👀 👈 🔢 🏷 ✔.

, 🚥 👆 💚 📨 🍕 ℹ 👈 💪 🚫 🌐 🔢, 👆 💪 ✔️ 🏷 ⏮️ 🌐 🔢 ™ 📦 (⏮️ 🔢 💲 ⚖️ `None`).

🔬 ⚪️➡️ 🏷 ⏮️ 🌐 📦 💲 **ℹ** & 🏷 ⏮️ ✔ 💲 **🏗**, 👆 💪 ⚙️ 💭 🔬 [➕ 🏷](extra-models.md){.internal-link target=_blank}.

## Caso de Uso

Empecemos con un ejemplo de **caso de uso** y luego veamos cómo resolverlo con esto.

Imaginemos que tienes algunos **modelos de machine learning** que quieres usar para manejar requests. 🤖

Los mismos modelos son compartidos entre requests, por lo que no es un modelo por request, o uno por usuario o algo similar.

Чтобы отличить модели со всеми необязательными значениями для **обновления** от моделей с обязательными значениями для **создания**, можно воспользоваться идеями, описанными в [Дополнительные модели](extra-models.md){.internal-link target=_blank}.

* **Güvenli şifreleme** .
* **JWT token** kimlik doğrulama.
* **SQLAlchemy** models (Flask dan bağımsızdır. Celery worker'ları ile kullanılabilir).
* Kullanıcılar için temel başlangıç ​​modeli (gerektiği gibi değiştirin ve kaldırın).
* **Alembic** migration.
* **CORS** (Cross Origin Resource Sharing).

  specific language governing permissions and limitations
  under the License.
-->

<model xmlns="http://codehaus-plexus.github.io/MODELLO/2.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://codehaus-plexus.github.io/MODELLO/2.0.0 https://codehaus-plexus.github.io/modello/xsd/modello-2.0.0.xsd"
  xml.namespace="http://maven.apache.org/SETTINGS/${version}"

# Return a Response Directly { #return-a-response-directly }

When you create a **FastAPI** *path operation* you can normally return any data from it: a `dict`, a `list`, a Pydantic model, a database model, etc.

By default, **FastAPI** would automatically convert that return value to JSON using the `jsonable_encoder` explained in [JSON Compatible Encoder](../tutorial/encoder.md){.internal-link target=_blank}.

specific language governing permissions and limitations
under the License.
-->

<model xmlns="http://codehaus-plexus.github.io/MODELLO/2.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://codehaus-plexus.github.io/MODELLO/2.0.0 https://codehaus-plexus.github.io/modello/xsd/modello-2.0.0.xsd"
  xml.namespace="http://maven.apache.org/PLUGIN/${version}"

    * Chuyển đổi kiểu dữ liệu Python (`str`, `int`, `float`, `bool`, `list`,...).
    * `datetime` objects.
    * `UUID` objects.
    * Database models.
    * ...và nhiều hơn thế.
* Tự động tạo tài liệu tương tác API, bao gồm 2 giao diện người dùng:
    * Swagger UI.
    * ReDoc.

---

Quay trở lại ví dụ trước, **FastAPI** sẽ thực hiện:

{* ../../docs_src/first_steps/tutorial001.py hl[8] *}

You can return a `dict`, `list`, singular values as `str`, `int`, etc.

You can also return Pydantic models (you'll see more about that later).

There are many other objects and models that will be automatically converted to JSON (including ORMs, etc). Try using your favorite ones, it's highly probable that they are already supported.

## Recap { #recap }

En utilisant cette même astuce, vous pouvez utiliser un modèle Pydantic pour définir le schéma JSON qui est ensuite inclus dans la section de schéma OpenAPI personnalisée pour le *chemin* concerné.

Et vous pouvez le faire même si le type de données dans la requête n'est pas au format JSON.