static CharBuffer createBuffer() {
    return CharBuffer.allocate(DEFAULT_BUF_SIZE);
  }

  private CharStreams() {}

  /**
   * Copies all characters between the {@link Readable} and {@link Appendable} objects. Does not
   * close or flush either object.
   *
   * @param from the object to read from
   * @param to the object to write to
   * @return the number of characters copied
   * @throws IOException if an I/O error occurs

Vous pouvez le vérifier sur [http://127.0.0.1:8000/docs](http://127.0.0.1:8000/docs) :

<img src="/img/tutorial/behind-a-proxy/image01.png">

Mais si nous accédons à l'interface de documents à l'URL « officielle » en utilisant le proxy avec le port `9999`, à `/api/v1/docs`, cela fonctionne correctement ! 🎉

Vous pouvez le vérifier sur [http://127.0.0.1:9999/api/v1/docs](http://127.0.0.1:9999/api/v1/docs) :

Você pode verificar em [http://127.0.0.1:8000/docs](http://127.0.0.1:8000/docs):

<img src="/img/tutorial/behind-a-proxy/image01.png">

Mas se acessarmos a interface de documentação no URL "oficial" usando o proxy com a porta `9999`, em `/api/v1/docs`, ela funciona corretamente! 🎉

Você pode verificar em [http://127.0.0.1:9999/api/v1/docs](http://127.0.0.1:9999/api/v1/docs):

<img src="/img/tutorial/behind-a-proxy/image02.png">

// [docs] for more depth.
//
//	// add a simple limit clause
//	db.Clauses(clause.Limit{Limit: 1}).Find(&User{})
//	// tell the optimizer to use the `idx_user_name` index
//	db.Clauses(hints.UseIndex("idx_user_name")).Find(&User{})
//	// specify the lock strength to UPDATE
//	db.Clauses(clause.Locking{Strength: "UPDATE"}).Find(&users)
//
// [docs]: https://gorm.io/docs/sql_builder.html#Clauses

[Kubernetes Security and Disclosure Information] page.

[Kubernetes version and version skew support policy]: https://kubernetes.io/docs/setup/release/version-skew-policy/#supported-versions

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)

        subgraph venv2[.venv]
            harry-3[harry v3]
        end
    end
    stone-project ~~~ azkaban-project
```

## What Does Activating a Virtual Environment Mean { #what-does-activating-a-virtual-environment-mean }

When you activate a virtual environment, for example with:

//// tab | Linux, macOS

<div class="termy">

```console

labels: [lang-all]
body:
  - type: markdown
    attributes:
      value: |
        Thanks for your interest in helping translate the FastAPI docs! 🌍

        Please follow these instructions carefully to propose a new language translation. 🙏

        This structured process helps ensure translations can be properly maintained long-term.
  - type: checkboxes
    id: checks
    attributes:
      label: Initial Checks

    /**
     * Recursively deletes a directory and all its contents.
     * Does not throw exceptions, only logs warnings if deletion fails.
     *
     * @param dir the directory to delete
     */
    protected void closeQuietly(final Path dir) {
        if (Files.notExists(dir)) {
            if (logger.isDebugEnabled()) {
                logger.debug("Path does not exist: path={}", dir);
            }
            return;
        }

* `allow_credentials` - Визначає, чи повинні підтримуватися кукі для міждоменних запитів. За замовчуванням `False`.