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  1. docs_src/dependencies/tutorial014_an_py310.py

    from sqlmodel import Field, Session, SQLModel, create_engine
    
    engine = create_engine("postgresql+psycopg://postgres:postgres@localhost/db")
    
    
    class User(SQLModel, table=True):
        id: int | None = Field(default=None, primary_key=True)
        name: str
    
    
    app = FastAPI()
    
    
    def get_session():
        with Session(engine) as session:
            yield session
    
    
    Created: Sun Apr 05 07:19:11 GMT 2026
    - Last Modified: Mon Sep 29 03:29:38 GMT 2025
    - 957 bytes
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  2. okhttp/src/commonJvmAndroid/kotlin/okhttp3/ConnectionPool.kt

        maxIdleConnections: Int = 5,
        keepAliveDuration: Long = 5,
        timeUnit: TimeUnit = TimeUnit.MINUTES,
        taskRunner: TaskRunner = TaskRunner.INSTANCE,
        connectionListener: ConnectionListener = ConnectionListener.NONE,
      ) : this(
        RealConnectionPool(
          taskRunner = taskRunner,
          maxIdleConnections = maxIdleConnections,
          keepAliveDuration = keepAliveDuration,
          timeUnit = timeUnit,
    Created: Fri Apr 03 11:42:14 GMT 2026
    - Last Modified: Tue Oct 07 21:55:03 GMT 2025
    - 3.4K bytes
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  3. docs/zh/docs/tutorial/body.md

    * 如果该参数也在**路径**中声明了,它就是路径参数。
    * 如果该参数是(`int`、`float`、`str`、`bool` 等)**单一类型**,它会被当作**查询**参数。
    * 如果该参数的类型声明为 **Pydantic 模型**,它会被当作请求**体**。
    
    /// note | 注意
    
    FastAPI 会根据默认值 `= None` 知道 `q` 的值不是必填的。
    
    `str | None` 并不是 FastAPI 用来判断是否必填的依据;是否必填由是否有默认值 `= None` 决定。
    
    但添加这些类型注解可以让你的编辑器提供更好的支持并检测错误。
    
    ///
    
    ## 不使用 Pydantic { #without-pydantic }
    
    Created: Sun Apr 05 07:19:11 GMT 2026
    - Last Modified: Fri Mar 20 17:06:37 GMT 2026
    - 5.9K bytes
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  4. tests/test_request_params/test_header/test_required_str.py

            "detail": [
                {
                    "type": "missing",
                    "loc": ["header", "p_alias"],
                    "msg": "Field required",
                    "input": IsOneOf(None, IsPartialDict({"p": "hello"})),
                }
            ]
        }
    
    
    @pytest.mark.parametrize(
        "path",
        [
            "/required-alias",
            "/model-required-alias",
        ],
    )
    Created: Sun Apr 05 07:19:11 GMT 2026
    - Last Modified: Sun Feb 08 10:18:38 GMT 2026
    - 10.3K bytes
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  5. docs_src/query_params_str_validations/tutorial008_an_py310.py

    app = FastAPI()
    
    
    @app.get("/items/")
    async def read_items(
        q: Annotated[
            str | None,
            Query(
                title="Query string",
                description="Query string for the items to search in the database that have a good match",
                min_length=3,
            ),
        ] = None,
    ):
        results = {"items": [{"item_id": "Foo"}, {"item_id": "Bar"}]}
        if q:
            results.update({"q": q})
    Created: Sun Apr 05 07:19:11 GMT 2026
    - Last Modified: Tue Oct 24 20:26:06 GMT 2023
    - 498 bytes
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  6. docs/de/docs/how-to/separate-openapi-schemas.md

    </div>
    
    Das bedeutet, dass es **immer einen Wert** hat, der Wert kann jedoch manchmal `None` sein (oder `null` in JSON).
    
    Das bedeutet, dass Clients, die Ihre API verwenden, nicht prüfen müssen, ob der Wert vorhanden ist oder nicht. Sie können davon ausgehen, dass das Feld immer vorhanden ist. In einigen Fällen hat es jedoch nur den Defaultwert `None`.
    
    Created: Sun Apr 05 07:19:11 GMT 2026
    - Last Modified: Wed Dec 24 10:28:19 GMT 2025
    - 5.2K bytes
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  7. docs/ru/docs/how-to/separate-openapi-schemas.md

    </div>
    
    Это означает, что у него **всегда будет какое‑то значение**, просто иногда это значение может быть `None` (или `null` в JSON).
    
    Это означает, что клиентам, использующим ваш API, не нужно проверять, существует ли это значение или нет: они могут **исходить из того, что поле всегда присутствует**, но в некоторых случаях оно будет иметь значение по умолчанию `None`.
    
    Created: Sun Apr 05 07:19:11 GMT 2026
    - Last Modified: Tue Jan 20 23:03:07 GMT 2026
    - 6.9K bytes
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  8. docs_src/query_params_str_validations/tutorial010_an_py310.py

    async def read_items(
        q: Annotated[
            str | None,
            Query(
                alias="item-query",
                title="Query string",
                description="Query string for the items to search in the database that have a good match",
                min_length=3,
                max_length=50,
                pattern="^fixedquery$",
                deprecated=True,
            ),
        ] = None,
    ):
    Created: Sun Apr 05 07:19:11 GMT 2026
    - Last Modified: Tue Oct 24 20:26:06 GMT 2023
    - 622 bytes
    - Click Count (0)
  9. tests/test_tutorial/test_body_nested_models/test_tutorial005.py

        assert response.json() == {
            "item_id": 5,
            "item": {
                "name": "Foo",
                "description": None,
                "price": 35.4,
                "tax": None,
                "tags": [],
                "image": None,
            },
        }
    
    
    def test_put_empty_body(client: TestClient):
        response = client.put(
            "/items/5",
            json={},
        )
    Created: Sun Apr 05 07:19:11 GMT 2026
    - Last Modified: Thu Feb 12 13:19:43 GMT 2026
    - 10.3K bytes
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  10. docs_src/app_testing/app_b_py310/main.py

        "bar": {"id": "bar", "title": "Bar", "description": "The bartenders"},
    }
    
    app = FastAPI()
    
    
    class Item(BaseModel):
        id: str
        title: str
        description: str | None = None
    
    
    @app.get("/items/{item_id}", response_model=Item)
    async def read_main(item_id: str, x_token: str = Header()):
        if x_token != fake_secret_token:
    Created: Sun Apr 05 07:19:11 GMT 2026
    - Last Modified: Wed Feb 04 13:32:24 GMT 2026
    - 1.1K bytes
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