`Body`や`Query`の場合と同じようにフォームパラメータを作成します:

```Python hl_lines="7"
{!../../docs_src/request_forms/tutorial001.py!}
```

例えば、OAuth2仕様が使用できる方法の１つ（「パスワードフロー」と呼ばれる）では、フォームフィールドとして`username`と`password`を送信する必要があります。

<abbr title="仕様">仕様</abbr>では、フィールドの名前が`username`と`password`であることと、JSONではなくフォームフィールドとして送信されることを要求しています。

`Form`では`Body`（および`Query`や`Path`、`Cookie`）と同じメタデータとバリデーションを宣言することができます。

/// info | "情報"

`Form`は`Body`を直接継承するクラスです。

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None


class User(BaseModel):
    username: str
    full_name: Union[str, None] = None


@app.put("/items/{item_id}")
async def update_item(
    *,
    item_id: int,
    item: Item,
    user: User,
    importance: Annotated[int, Body(gt=0)],

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None


class User(BaseModel):
    username: str
    full_name: Union[str, None] = None


@app.put("/items/{item_id}")
async def update_item(
    *,
    item_id: int,
    item: Item,
    user: User,
    importance: Annotated[int, Body(gt=0)],

- User provides their AD/LDAP username and password to the STS API.
- MinIO looks up the user's information (specifically the user's Distinguished Name) in the LDAP server.
- On finding the user's info, MinIO verifies the login credentials with the AD/LDAP server.

     * @param domain
     *            domain for NTLM fallback
     * @param username
     *            user for NTLM fallback
     * @param password
     *            password for NTLM fallback
     */
    public Kerb5Authenticator ( Subject subject, String domain, String username, String password ) {
        super(domain, username, password);
        this.canFallback = true;
        this.subject = subject;
    }

        param("env.JDK11", javaHome(OpenJdk11, Os.LINUX))
        param("env.JDK17", javaHome(OpenJdk17, Os.LINUX))
        param("env.ORG_GRADLE_PROJECT_artifactoryUserName", "%gradle.internal.repository.build-tool.publish.username%")
        password("env.ORG_GRADLE_PROJECT_infrastructureEmailPwd", "%infrastructureEmailPwd%")
        param("env.ORG_GRADLE_PROJECT_sdkmanKey", "8ed1a771bc236c287ad93c699bfdd2d7")

@needs_py39
def test_security_http_basic(client: TestClient):
    response = client.get("/users/me", auth=("john", "secret"))
    assert response.status_code == 200, response.text
    assert response.json() == {"username": "john", "password": "secret"}


@needs_py39
def test_security_http_basic_no_credentials(client: TestClient):
    response = client.get("/users/me")
    assert response.json() == {"detail": "Not authenticated"}

⚙️ 👫 💭, 🥙 💪 ⚙️ 🌌 🌖 🤓 😐.

📚 💼, 📚 👈 👨‍💼 💪 ✔️ 🎏 🆔, ➡️ 💬 `foo` (👩‍💻 `foo`, 🚘 `foo`, & 📰 🏤 `foo`).

, ❎ 🆔 💥, 🕐❔ 🏗 🥙 🤝 👩‍💻, 👆 💪 🔡 💲 `sub` 🔑, ✅ ⏮️ `username:`. , 👉 🖼, 💲 `sub` 💪 ✔️: `username:johndoe`.

⚠ 👜 ✔️ 🤯 👈 `sub` 🔑 🔜 ✔️ 😍 🆔 🤭 🎂 🈸, & ⚫️ 🔜 🎻.

## ✅ ⚫️

-  char ut_id[4];		/* Inittab ID.  */
-  char ut_user[UT_NAMESIZE];	/* Username.  */
-  char ut_host[UT_HOSTSIZE];	/* Hostname for remote login.  */
+  char ut_line[UT_LINESIZE]
+    __attribute_nonstring__;	/* Devicename.  */
+  char ut_id[4]
+    __attribute_nonstring__;		/* Inittab ID.  */
+  char ut_user[UT_NAMESIZE]
+    __attribute_nonstring__;	/* Username.  */
+  char ut_host[UT_HOSTSIZE]

```JSON
{
    "item": {
        "name": "Foo",
        "description": "The pretender",
        "price": 42.0,
        "tax": 3.2
    },
    "user": {
        "username": "dave",
        "full_name": "Dave Grohl"
    }
}
```

/// note | "Nota"