* Import `Jinja2Templates`.
* Create a `templates` object that you can reuse later.
* Declare a `Request` parameter in the *path operation* that will return a template.
* Use the `templates` you created to render and return a `TemplateResponse`, pass the name of the template, the request object, and a "context" dictionary with key-value pairs to be used inside of the Jinja2 template.

    }

    /**
     * Register roles and labels.
     * @param data The render data.
     */
    protected void registerRolesAndLabels(final RenderData data) {
        RenderDataUtil.register(data, "roleTypeItems", roleTypeService.getRoleTypeList());
    }

    /**
     * Register handler names.
     * @param data The render data.
     */
    protected void registerHandlerNames(final RenderData data) {

    }

    public void addMessage(String message) {
        messages.add(message);
    }

    @Override
    public String toString() {
        return render("");
    }

    public String render(String indentation) {
        if (messages.isEmpty()) {
            return indentation + "There were no validation errors.";
        }

        StringBuilder message = new StringBuilder();

from typing import Any

import orjson
from fastapi import FastAPI, Response

app = FastAPI()


class CustomORJSONResponse(Response):
    media_type = "application/json"

    def render(self, content: Any) -> bytes:
        assert orjson is not None, "orjson must be installed"
        return orjson.dumps(content, option=orjson.OPT_INDENT_2)


@app.get("/", response_class=CustomORJSONResponse)
async def main():

## クラウドプロバイダ - スポンサー { #cloud-providers-sponsors }

他にもいくつかのクラウドプロバイダが ✨ [**FastAPI をスポンサーしています**](../help-fastapi.md#sponsor-the-author) ✨。🙇

それらのガイドを参考にし、サービスを試してみるのもよいでしょう:

* [Render](https://docs.render.com/deploy-fastapi?utm_source=deploydoc&utm_medium=referral&utm_campaign=fastapi)

/// danger | Cuidado

Nunca armazene senhas em texto simples dos usuários. Sempre armazene uma "hash segura" que você pode verificar depois.

Se não souber, você aprenderá o que é uma "senha hash" nos [capítulos de segurança](security/simple-oauth2.md#password-hashing).

///

## Múltiplos modelos { #multiple-models }

 * limitations under the License.
 */
package okhttp3.internal.ws

import okio.Buffer
import okio.ByteString.Companion.encodeUtf8

object WebSocketProtocol {
  /** Magic value which must be appended to the key in a response header. */
  internal const val ACCEPT_MAGIC = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"

  /*
  Each frame starts with two bytes of data.

   0 1 2 3 4 5 6 7    0 1 2 3 4 5 6 7

Más adelante, cuando leas sobre cómo estructurar aplicaciones más grandes ([Aplicaciones Más Grandes - Múltiples Archivos](../../tutorial/bigger-applications.md)), posiblemente con múltiples archivos, aprenderás cómo declarar un único parámetro `dependencies` para un grupo de *path operations*.

## Dependencias Globales { #global-dependencies }

    }

    /**
     * Append content to the message buffer.
     *
     * @param value the content to append
     * @param start the starting index of the subsequence to be appended
     * @param end the end index of the subsequence to be appended
     * @return the current builder
     */
    @Nonnull
    default MessageBuilder a(CharSequence value, int start, int end) {
        return append(value, start, end);
    }

![ReDoc](https://fastapi.tiangolo.com/img/index/index-06-redoc-02.png)

### Uniquement du Python moderne { #just-modern-python }

Tout est basé sur les déclarations de **types Python** standard (grâce à Pydantic). Aucune nouvelle syntaxe à apprendre. Juste du Python moderne standard.

Si vous avez besoin d'un rappel de 2 minutes sur l'utilisation des types en Python (même si vous n'utilisez pas FastAPI), consultez le court tutoriel : [Types Python](python-types.md).