* [`uvicorn`](https://www.uvicorn.dev) - 用於載入並服務你的應用的伺服器。這包含 `uvicorn[standard]`，其中含有一些高效能服務所需的依賴（例如 `uvloop`）。
* `fastapi-cli[standard]` - 提供 `fastapi` 指令。
    * 其中包含 `fastapi-cloud-cli`，可讓你將 FastAPI 應用部署到 [FastAPI Cloud](https://fastapicloud.com)。

### 不含 `standard` 依賴套件 { #without-standard-dependencies }

如果你不想包含 `standard` 可選依賴，可以改用 `pip install fastapi`（而不是 `pip install "fastapi[standard]"`）。

Por ejemplo, para instalar Uvicorn:

<div class="termy">

```console
$ pip install "uvicorn[standard]"

---> 100%
```

</div>

Un proceso similar se aplicaría a cualquier otro programa de servidor ASGI.

/// tip | Consejo

Al añadir `standard`, Uvicorn instalará y usará algunas dependencias adicionales recomendadas.

Zum Beispiel, um Uvicorn zu installieren:

<div class="termy">

```console
$ pip install "uvicorn[standard]"

---> 100%
```

</div>

Ein ähnlicher Prozess würde für jedes andere ASGI-Serverprogramm gelten.

/// tip | Tipp

Durch das Hinzufügen von `standard` installiert und verwendet Uvicorn einige empfohlene zusätzliche Abhängigkeiten.

 * Extends the standard plugin DeleteForm to provide JSON request body functionality
 * for REST API operations.
 */
public class DeleteBody extends DeleteForm {

    /**
     * Creates a new instance of DeleteBody.
     * This constructor initializes the request body for plugin deletion API operations,
     * extending the standard plugin DeleteForm with JSON request body functionality.
     */

            e
        );
    }

    /**
     * Runs a command and captures the exit code, standard output and standard error.
     *
     * @param args the command and any arguments to execute
     * @return a object that captures the result of running the command. If an exception occurring

copies of a package at different versions if the package is
imported normally and vendored by the standard library.

Vendored packages are internally renamed with a "vendor/" prefix
to preserve the invariant that all packages have distinct paths.
This is necessary to avoid compiler and linker conflicts. Adding
a "vendor/" prefix also maintains the invariant that standard
library packages begin with a dotless path element.

                    return new StandardImplForwardingSortedMap<>(map);
                  }
                })
            .named(
                "ForwardingSortedMap[SafeTreeMap] with no comparator and standard "
                    + "implementations")
            .withFeatures(
                CollectionSize.ANY,
                CollectionFeature.KNOWN_ORDER,
                MapFeature.ALLOWS_NULL_VALUES,

var (
	configRRSParityMD = NewGaugeMD(configRRSParity,
		"Reduced redundancy storage class parity")
	configStandardParityMD = NewGaugeMD(configStandardParity,
		"Standard storage class parity")
)

// loadClusterConfigMetrics - `MetricsLoaderFn` for cluster config
// such as standard and RRS parity.
func loadClusterConfigMetrics(ctx context.Context, m MetricValues, c *metricsCache) error {
	clusterDriveMetrics, err := c.clusterDriveMetrics.Get()

/// note | Technical Details

ASGI is a new "standard" being developed by Django core team members. It is still not a "Python standard" (a PEP), although they are in the process of doing that.

例如，安裝 Uvicorn：

<div class="termy">

```console
$ pip install "uvicorn[standard]"

---> 100%
```

</div>

其他 ASGI 伺服器的安裝流程也大致相同。

/// tip

加入 `standard` 會讓 Uvicorn 安裝並使用一些建議的額外相依套件。

其中包含 `uvloop`，它是 `asyncio` 的高效能替代實作，可大幅提升並行效能。

當你用 `pip install "fastapi[standard]"` 安裝 FastAPI 時，也會一併取得 `uvicorn[standard]`。

///

## 執行伺服器程式 { #run-the-server-program }