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  2. github.com/tiangolo/fastapi

    docs_src/query_params/tutorial002_py310.py 

    from fastapi import FastAPI

app = FastAPI()


@app.get("/items/{item_id}")
async def read_item(item_id: str, q: str | None = None):
    if q:
        return {"item_id": item_id, "q": q}
    Registered: Sun Nov 03 07:19:11 UTC 2024
    - Last Modified: Fri Jan 07 14:11:31 UTC 2022
    - 219 bytes
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  3. github.com/tiangolo/fastapi

    docs_src/templates/templates/item.html 

    <html>
<head>
    <title>Item Details</title>
    <link href="{{ url_for('static', path='/styles.css') }}" rel="stylesheet">
</head>
<body>
    <h1><a href="{{ url_for('read_item', id=id) }}">Item ID: {{ id }}</a></h1>
</body>
    Registered: Sun Nov 03 07:19:11 UTC 2024
    - Last Modified: Thu Jan 11 22:25:37 UTC 2024
    - 235 bytes
    - Viewed (0)
  4. github.com/tiangolo/fastapi

    docs_src/templates/tutorial001.py 

    app = FastAPI()

app.mount("/static", StaticFiles(directory="static"), name="static")


templates = Jinja2Templates(directory="templates")


@app.get("/items/{id}", response_class=HTMLResponse)
async def read_item(request: Request, id: str):
    return templates.TemplateResponse(
        request=request, name="item.html", context={"id": id}
    Registered: Sun Nov 03 07:19:11 UTC 2024
    - Last Modified: Tue Dec 26 20:12:34 UTC 2023
    - 521 bytes
    - Viewed (0)
  5. github.com/tiangolo/fastapi

    docs_src/response_model/tutorial004_py39.py 

        "baz": {"name": "Baz", "description": None, "price": 50.2, "tax": 10.5, "tags": []},
}


@app.get("/items/{item_id}", response_model=Item, response_model_exclude_unset=True)
async def read_item(item_id: str):
    Registered: Sun Nov 03 07:19:11 UTC 2024
    - Last Modified: Sat May 14 11:59:59 UTC 2022
    - 627 bytes
    - Viewed (0)
  6. github.com/tiangolo/fastapi

    docs_src/extra_models/tutorial003_py310.py 

            "description": "Music is my aeroplane, it's my aeroplane",
        "type": "plane",
        "size": 5,
    },
}


@app.get("/items/{item_id}", response_model=Union[PlaneItem, CarItem])
async def read_item(item_id: str):
    Registered: Sun Nov 03 07:19:11 UTC 2024
    - Last Modified: Fri Jul 07 17:12:13 UTC 2023
    - 644 bytes
    - Viewed (0)
  7. github.com/tiangolo/fastapi

    docs/en/docs/advanced/templates.md 

    So, the section with:

{% raw %}

```jinja
<a href="{{ url_for('read_item', id=id) }}">
```

{% endraw %}

...will generate a link to the same URL that would be handled by the *path operation function* `read_item(id=id)`.

For example, with an ID of `42`, this would render:

```html
<a href="/items/42">
```
    Registered: Sun Nov 03 07:19:11 UTC 2024
    - Last Modified: Sun Oct 06 20:36:54 UTC 2024
    - 3.3K bytes
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  8. github.com/tiangolo/fastapi

    docs/zh/docs/advanced/templates.md 

    ```html
Item ID: 42
```

### 模板 `url_for` 参数

你还可以在模板内使用 `url_for()`，其参数与*路径操作函数*的参数相同.

所以，该部分:

{% raw %}

```jinja
<a href="{{ url_for('read_item', id=id) }}">
```

{% endraw %}

...将生成一个与处理*路径操作函数* `read_item(id=id)`的URL相同的链接

例如。当ID为 `42`时, 会渲染成:

```html
<a href="/items/42">
```

## 模板与静态文件
    Registered: Sun Nov 03 07:19:11 UTC 2024
    - Last Modified: Sun Oct 06 20:36:54 UTC 2024
    - 2.8K bytes
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  9. github.com/tiangolo/fastapi

    docs_src/bigger_applications/app_an_py39/routers/items.py 

        responses={404: {"description": "Not found"}},
)


fake_items_db = {"plumbus": {"name": "Plumbus"}, "gun": {"name": "Portal Gun"}}


@router.get("/")
async def read_items():
    return fake_items_db


@router.get("/{item_id}")
async def read_item(item_id: str):
    if item_id not in fake_items_db:
        raise HTTPException(status_code=404, detail="Item not found")
    Registered: Sun Nov 03 07:19:11 UTC 2024
    - Last Modified: Sat Mar 18 12:29:59 UTC 2023
    - 1011 bytes
    - Viewed (0)
  10. github.com/tiangolo/fastapi

    docs_src/body_updates/tutorial002_py39.py 

        "baz": {"name": "Baz", "description": None, "price": 50.2, "tax": 10.5, "tags": []},
}


@app.get("/items/{item_id}", response_model=Item)
async def read_item(item_id: str):
    return items[item_id]


@app.patch("/items/{item_id}", response_model=Item)
async def update_item(item_id: str, item: Item):
    stored_item_data = items[item_id]
    Registered: Sun Nov 03 07:19:11 UTC 2024
    - Last Modified: Sat May 14 11:59:59 UTC 2022
    - 1K bytes
    - Viewed (0)
  11. github.com/tiangolo/fastapi

    docs_src/query_params/tutorial002.py 

    from typing import Union

from fastapi import FastAPI

app = FastAPI()


@app.get("/items/{item_id}")
async def read_item(item_id: str, q: Union[str, None] = None):
    if q:
        return {"item_id": item_id, "q": q}
    Registered: Sun Nov 03 07:19:11 UTC 2024
    - Last Modified: Sat May 14 11:59:59 UTC 2022
    - 251 bytes
    - Viewed (0)
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