```JSON
{
    "name": "Foo",
    "price": 45.2
}
```

## パラメータとして宣言

*パスオペレーション* に加えるために、パスパラメータやクエリパラメータと同じ様に宣言します:

{* ../../docs_src/body/tutorial001.py hl[18] *}

...そして、作成したモデル `Item` で型を宣言します。

## 結果

そのPythonの型宣言だけで **FastAPI** は以下のことを行います:

* リクエストボディをJSONとして読み取ります。
* 適当な型に変換します（必要な場合）。
* データを検証します。
    * データが無効な場合は、明確なエラーが返され、どこが不正なデータであったかを示します。

And, in turn, `dependency_b` needs the value from `dependency_a` (here named `dep_a`) to be available for its exit code.

{* ../../docs_src/dependencies/tutorial008_an_py39.py hl[18:19,26:27] *}

The same way, you could have some dependencies with `yield` and some other dependencies with `return`, and have some of those depend on some of the others.

<setting id="org.eclipse.jdt.core.formatter.never_indent_block_comments_on_first_column" value="false"/>
<setting id="org.eclipse.jdt.core.compiler.source" value="1.8"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_synchronized" value="do not insert"/>

Und wiederum benötigt `dependency_b` den Wert von `dependency_a` (hier `dep_a` genannt) für seinen Exit-Code.

{* ../../docs_src/dependencies/tutorial008_an_py39.py hl[18:19,26:27] *}

Auf die gleiche Weise könnten Sie einige Abhängigkeiten mit `yield` und einige andere Abhängigkeiten mit `return` haben, und alle können beliebig voneinander abhängen.

      return fmix(h1, length);
    }
  }

  private static long codePointToFourUtf8Bytes(int codePoint) {
    // codePoint has at most 21 bits
    return ((0xFL << 4) | (codePoint >>> 18))
        | ((0x80L | (0x3F & (codePoint >>> 12))) << 8)
        | ((0x80L | (0x3F & (codePoint >>> 6))) << 16)
        | ((0x80L | (0x3F & codePoint)) << 24);
  }

  private static long charToThreeUtf8Bytes(char c) {

- login: sehraramiz
  count: 18
  avatarUrl: https://avatars.githubusercontent.com/u/14166324?u=8fac65e84dfff24245d304a5b5b09f7b5bd69dc9&v=4
  url: https://github.com/sehraramiz
- login: retnikt
  count: 18
  avatarUrl: https://avatars.githubusercontent.com/u/24581770?v=4
  url: https://github.com/retnikt
- login: zoliknemet
  count: 18

        packet.questionName = mockQuestionName; // Ensure questionName is set

        int read = packet.readResourceRecordWireFormat(src, 0);
        assertEquals(18, read); // 2 (pointer) + 2 (type) + 2 (class) + 4 (ttl) + 2 (rDataLength) + 6 (rData)
        assertEquals(packet.questionName, packet.recordName);
        assertEquals(NameServicePacket.A, packet.recordType);

///

### 💗 📁 📂 ⏮️ 🌖 🗃

& 🎏 🌌 ⏭, 👆 💪 ⚙️ `File()` ⚒ 🌖 🔢, `UploadFile`:

{* ../../docs_src/request_files/tutorial003.py hl[18] *}

## 🌃

# need to fix up all the links to stay within /${TARGET}.
/fixlinks.sh "/${TARGET}"

# Patch to allow non-glibc 2.12 compatible builds to work.
sed -i '54i#define TCP_USER_TIMEOUT 18' "/${TARGET}/usr/include/netinet/tcp.h"

# Download specific version of libstdc++ shared library based on the value of
# the `VERSION` parameter
  # Download binary libstdc++ 4.8 shared library release

✍ 🔢 ⏮️ 📛 👈 ▶️ ⏮️ `test_` (👉 🐩 `pytest` 🏛).

⚙️ `TestClient` 🎚 🎏 🌌 👆 ⏮️ `httpx`.

✍ 🙅 `assert` 📄 ⏮️ 🐩 🐍 🧬 👈 👆 💪 ✅ (🔄, 🐩 `pytest`).

{* ../../docs_src/app_testing/tutorial001.py hl[2,12,15:18] *}

/// tip

👀 👈 🔬 🔢 😐 `def`, 🚫 `async def`.

 & 🤙 👩‍💻 😐 🤙, 🚫 ⚙️ `await`.

👉 ✔ 👆 ⚙️ `pytest` 🔗 🍵 🤢.

///

/// note | 📡 ℹ