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					<div class="card-header d-flex justify-content-between align-items-center">
						<div id="statusArea" class="status-lozenge status-ready" role="status" aria-live="polite">
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{* ../../docs_src/stream_json_lines/tutorial001_py310.py ln[1:24] hl[9:11,22] *}

如果你宣告了回傳型別，FastAPI 會用它來進行資料的**驗證**、在 OpenAPI 中**文件化**、**過濾**，並使用 Pydantic 進行**序列化**。

/// tip

由於 Pydantic 會在 **Rust** 端進行序列化，宣告回傳型別可獲得比未宣告時高得多的**效能**。

///

### 非 async 的*路徑操作函式* { #non-async-path-operation-functions }

你也可以用一般的 `def` 函式（沒有 `async`），同樣用 `yield`。

FastAPI 會確保正確執行，不會阻塞事件迴圈。

如果你将返回类型声明为 `AsyncIterable[Item]`，FastAPI 将使用它通过 Pydantic对数据进行**校验**、**文档化**和**序列化**。

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[1:25] hl[10:12,23] *}

/// tip | 提示

由于 Pydantic 会在**Rust** 端序列化它，相比未声明返回类型，你将获得更高的**性能**。

///

### 非 async 的*路径操作函数* { #non-async-path-operation-functions }

你也可以使用常规的 `def` 函数（没有 `async`），并以同样的方式使用 `yield`。

FastAPI 会确保其正确运行，从而不阻塞事件循环。

如果你把回傳型別宣告為 `AsyncIterable[Item]`，FastAPI 會用它來透過 Pydantic 進行**驗證**、**文件化**與**序列化**。

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[1:25] hl[10:12,23] *}

/// tip

因為 Pydantic 會在 **Rust** 端進行序列化，如果你有宣告回傳型別，效能會比未宣告時高很多。

///

### 非 async 的路徑操作函式 { #non-async-path-operation-functions }

你也可以使用一般的 `def` 函式（沒有 `async`），並同樣使用 `yield`。

FastAPI 會確保正確執行，不會阻塞事件迴圈。

 * translating code from using an event bus to using a reactive-streams framework, see these two
 * guides: <a href="https://blog.jkl.gg/implementing-an-event-bus-with-rxjava-rxbus/">1</a>, <a
 * href="https://lorentzos.com/rxjava-as-event-bus-the-right-way-10a36bdd49ba">2</a>.) Some usages
 * of EventBus may be better written using <a

    with these curl arguments:

    ```
    curl \
      --http2-prior-knowledge \
      --proxy localhost:8888 \
      --proxytunnel \
      http://squareup.com/robots.txt
    ```

 *  Fix: Support executing OkHttp on kotlin-stdlib versions as old as 1.4. The library still builds
    on up-to-date Kotlin releases (1.6.21) but no longer needs that version as a runtime dependency.

      HandshakeCertificates
        .Builder()
        .heldCertificate(certificate)
        .build()
    server.useHttps(serverHandshakeCertificates.sslSocketFactory())
    url = server.url("/robots.txt")
  }

  /**
   * Test connecting to the main host then an alternative, although only subject alternative names
   * are used if present no special consideration of common name.
   */
  @Test

# Pattern for environment variable keys in crawling data.
crawler.data.env.param.key.pattern=^FESS_ENV_.*
# Whether to ignore robots.txt during crawling.
crawler.ignore.robots.txt=false
# Whether to ignore robots meta tags during crawling.
crawler.ignore.robots.tags=false
# Whether to ignore content exceptions during crawling.
crawler.ignore.content.exception=true
# HTTP status codes considered as failure URLs.

* [Daphne](https://github.com/django/daphne): the ASGI server built for Django Channels.
* [Granian](https://github.com/emmett-framework/granian): A Rust HTTP server for Python applications.
* [NGINX Unit](https://unit.nginx.org/howto/fastapi/): NGINX Unit is a lightweight and versatile web application runtime.

* [Daphne](https://github.com/django/daphne): el servidor ASGI construido para Django Channels.
* [Granian](https://github.com/emmett-framework/granian): Un servidor HTTP Rust para aplicaciones en Python.
* [NGINX Unit](https://unit.nginx.org/howto/fastapi/): NGINX Unit es un runtime para aplicaciones web ligero y versátil.

## Máquina Servidor y Programa Servidor { #server-machine-and-server-program }