## ステップ毎の要約 { #recap-step-by-step }

### Step 1: `FastAPI`をインポート { #step-1-import-fastapi }

{* ../../docs_src/first_steps/tutorial001_py310.py hl[1] *}

`FastAPI`は、APIのすべての機能を提供するPythonクラスです。

/// note | 技術詳細

`FastAPI`は`Starlette`を直接継承するクラスです。

`FastAPI`でも[Starlette](https://www.starlette.dev/)のすべての機能を利用可能です。

///

### Step 2: `FastAPI`の「インスタンス」を生成 { #step-2-create-a-fastapi-instance }

import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for {@link MoreFiles}.
 *
 * <p>Note: {@link MoreFiles#fileTraverser()} is tested in {@link MoreFilesFileTraverserTest}.
 *
 * @author Colin Decker
 */

@NullUnmarked
public class MoreFilesTest extends TestCase {

  /*
   * Note: We don't include suite() in the backport. I've lost track of whether the Android test

 * i.e. {@code if (key1.equals(key2))} then {@code striped.get(key1) == striped.get(key2)} (assuming
 * {@link Object#hashCode()} is correctly implemented for the keys). Note that if {@code key1} is
 * <strong>not</strong> equal to {@code key2}, it is <strong>not</strong> guaranteed that {@code
 * striped.get(key1) != striped.get(key2)}; the elements might nevertheless be mapped to the same

   *
   * <p>Any parts of the range not already present in this map are mapped to the specified value,
   * unless the value is {@code null}.
   *
   * <p>Any existing entry spanning either range boundary may be split at the boundary, even if the
   * merge does not affect its value. For example, if {@code rangeMap} had one entry {@code [1, 5]

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## Create a `websocket` { #create-a-websocket }

In your **FastAPI** application, create a `websocket`:

{* ../../docs_src/websockets_/tutorial001_py310.py hl[1,46:47] *}

/// note | Technical Details

You could also use `from starlette.websockets import WebSocket`.

**FastAPI** provides the same `WebSocket` directly just as a convenience for you, the developer. But it comes directly from Starlette.

Django REST framework 作为一个灵活工具箱而创建，用于在底层使用 Django 构建 Web API，从而增强其 API 能力。

它被包括 Mozilla、Red Hat、Eventbrite 在内的许多公司使用。

它是最早的“自动 API 文档”的范例之一，这正是启发“寻找” **FastAPI** 的最初想法之一。

/// note | 注意

Django REST Framework 由 Tom Christie 创建。他也是 Starlette 和 Uvicorn 的作者，**FastAPI** 就是基于它们构建的。

///

/// check | 启发 **FastAPI**：

提供自动化的 API 文档 Web 界面。

///

  }

  /**
   * Returns an {@link ImmutableSortedSet} containing the same values in the given domain
   * {@linkplain RangeSet#contains contained} by this range set.
   *
   * <p><b>Note:</b> {@code a.asSet(d).equals(b.asSet(d))} does not imply {@code a.equals(b)}! For
   * example, {@code a} and {@code b} could be {@code [2..4]} and {@code (1..5)}, or the empty
   * ranges {@code [3..3)} and {@code [4..4)}.
   *

func loadFormatErasure(disk StorageAPI, heal bool) (format *formatErasureV3, err error) {
	data, err := disk.ReadAll(context.TODO(), minioMetaBucket, formatConfigFile)
	if err != nil {
		// 'file not found' and 'volume not found' as
		// same. 'volume not found' usually means its a fresh disk.
		if errors.Is(err, errFileNotFound) || errors.Is(err, errVolumeNotFound) {
			return nil, errUnformattedDisk
		}
		return nil, err
	}

これは、整形済みテキスト、ログ行、または `[DONE]` のような特別な <dfn title="特別な条件や状態を示すために用いられる値">"センチネル"</dfn> 値を送るのに有用です。

{* ../../docs_src/server_sent_events/tutorial003_py310.py hl[17] *}

/// note | 備考

`data` と `raw_data` は相互排他的です。各 `ServerSentEvent` ではどちらか一方しか設定できません。

///

## `Last-Event-ID` での再開 { #resuming-with-last-event-id }

接続が途切れた後にブラウザが再接続すると、最後に受信した `id` を `Last-Event-ID` ヘッダーで送信します。