<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
<span style="color: green;">INFO</span>:     Started reloader process [28720]
<span style="color: green;">INFO</span>:     Started server process [28722]
<span style="color: green;">INFO</span>:     Waiting for application startup.
<span style="color: green;">INFO</span>:     Application startup complete.
```

</div>

  val data: String? by option("-d", "--data").help("HTTP POST data")

  val headers: List<String>? by option("-H", "--header").help("Custom header to pass to server").multiple()

  val userAgent: String by option(
    "-A",
    "--user-agent",
  ).help(
    "User-Agent to send to server",
  ).default(NAME + "/" + versionString())

  val connectTimeout: Int by option(
    "--connect-timeout",
  ).help(

Uvicorn ist ein blitzschneller ASGI-Server, der auf uvloop und httptools basiert.

Es handelt sich nicht um ein Webframework, sondern um einen Server. Beispielsweise werden keine Tools für das Routing von Pfaden bereitgestellt. Das ist etwas, was ein Framework wie Starlette (oder **FastAPI**) zusätzlich bieten würde.

Es ist der empfohlene Server für Starlette und **FastAPI**.

/// check | **FastAPI** empfiehlt es als

     */
    public SitemapUrl() {
        super();
    }

    /**
     * URL of the page. This URL must begin with the protocol (such as http) and
     * end with a trailing slash, if your web server requires it. This value
     * must be less than 2,048 characters.
     */
    private String loc;

    /**
     * The date of last modification of the file. This date should be in W3C

import okhttp3.Route
import okhttp3.internal.canParseAsIpAddress
import okhttp3.internal.immutableListOf
import okhttp3.internal.toImmutableList

/**
 * Selects routes to connect to an origin server. Each connection requires a choice of proxy server,
 * IP address, and TLS mode. Connections may also be recycled.
 */
class RouteSelector(
  private val address: Address,
  private val routeDatabase: RouteDatabase,

The hierarchy is like:

* **Uvicorn**: an ASGI server
    * **Starlette**: (uses Uvicorn) a web microframework
        * **FastAPI**: (uses Starlette) an API microframework with several additional features for building APIs, with data validation, etc.

* **Uvicorn**:
    * Will have the best performance, as it doesn't have much extra code apart from the server itself.

[kubernetes-server-linux-arm.tar.gz](https://storage.googleapis.com/kubernetes-release/release/v1.3.10/kubernetes-server-linux-arm.tar.gz) | `40ac46a265021615637f07d532cd563b4256dcf340a27c594bfd3501fe66b84c`

Đó là lí do các phiên bản hiện tại vẫn còn là 0.x.x, điều này phản ánh rằng mỗi phiên bản có thể có các thay đổi gây mất tương thích. Điều này tuân theo các quy ước về <a href="https://semver.org/" class="external-link" target="blank">Semantic Versioning</a>.

        }
        super.prepare(next);
    }

    /**
     * Get the oplock level granted by the server
     * @return the oplockLevel
     */
    public final byte getOplockLevel() {
        return this.oplockLevel;
    }

    /**
     * Get the open flags returned by the server
     * @return the flags
     */
    public final byte getOpenFlags() {
        return this.openFlags;
    }

# Langkah Pertama

File FastAPI yang paling sederhana bisa seperti berikut:

{* ../../docs_src/first_steps/tutorial001.py *}

Salin file tersebut ke `main.py`.

Jalankan di server:

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev <u style="text-decoration-style:single">main.py</u>
<font color="#3465A4">INFO    </font> Using path <font color="#3465A4">main.py</font>