///

## Используйте `ORJSONResponse` { #use-orjsonresponse }

Например, если вы выжимаете максимум производительности, вы можете установить и использовать <a href="https://github.com/ijl/orjson" class="external-link" target="_blank">`orjson`</a> и задать ответ как `ORJSONResponse`.

from fastapi import FastAPI
from fastapi.responses import ORJSONResponse

app = FastAPI()


@app.get("/items/", response_class=ORJSONResponse)
async def read_items():

///

## Usa `ORJSONResponse` { #use-orjsonresponse }

Por ejemplo, si estás exprimendo el rendimiento, puedes instalar y usar <a href="https://github.com/ijl/orjson" class="external-link" target="_blank">`orjson`</a> y establecer el response como `ORJSONResponse`.

Importa la clase `Response` (sub-clase) que quieras usar y declárala en el *path operation decorator*.

///

## Utilizando `ORJSONResponse` { #use-orjsonresponse }

Por exemplo, se você precisa bastante de performance, você pode instalar e utilizar o <a href="https://github.com/ijl/orjson" class="external-link" target="_blank">`orjson`</a> e definir a resposta para ser uma `ORJSONResponse`.

from fastapi import FastAPI
from fastapi.responses import ORJSONResponse

app = FastAPI(default_response_class=ORJSONResponse)


@app.get("/items/")
async def read_items():

///

## Use `ORJSONResponse` { #use-orjsonresponse }

For example, if you are squeezing performance, you can install and use <a href="https://github.com/ijl/orjson" class="external-link" target="_blank">`orjson`</a> and set the response to be `ORJSONResponse`.

Import the `Response` class (sub-class) you want to use and declare it in the *path operation decorator*.

///

## `ORJSONResponse` verwenden { #use-orjsonresponse }

Um beispielsweise noch etwas Leistung herauszuholen, können Sie <a href="https://github.com/ijl/orjson" class="external-link" target="_blank">`orjson`</a> installieren und die Response als `ORJSONResponse` setzen.

    # For Starlette's schema generation, would not be used with FastAPI
    "pyyaml >=5.3.1",
    # For UJSONResponse
    "ujson >=4.0.1,!=4.0.2,!=4.1.0,!=4.2.0,!=4.3.0,!=5.0.0,!=5.1.0",
    # For ORJSONResponse
    "orjson >=3.2.1",
    # To validate email fields
    "email-validator >=2.0.0",
    # Uvicorn with uvloop
    "uvicorn[standard] >=0.12.0",
    # Settings management
    "pydantic-settings >=2.0.0",

Дополнительные опциональные зависимости FastAPI:

* <a href="https://github.com/ijl/orjson" target="_blank"><code>orjson</code></a> — обязателен, если вы хотите использовать `ORJSONResponse`.
* <a href="https://github.com/esnme/ultrajson" target="_blank"><code>ujson</code></a> — обязателен, если вы хотите использовать `UJSONResponse`.

## Лицензия { #license }

Dependencias opcionales adicionales de FastAPI:

* <a href="https://github.com/ijl/orjson" target="_blank"><code>orjson</code></a> - Requerido si deseas usar `ORJSONResponse`.
* <a href="https://github.com/esnme/ultrajson" target="_blank"><code>ujson</code></a> - Requerido si deseas usar `UJSONResponse`.

## Licencia { #license }