Log           logger
}

// Add adds the item to the batch
func (b *Batch[I]) Add(item I) error {
	b.Lock()
	defer b.Unlock()

	if b.isFull() {
		if b.store == nil {
			return ErrBatchFull
		}
		// commit batch to store
		if err := b.commit(); err != nil {
			return err
		}
	}

	b.items = append(b.items, item)
	return nil
}

// Len returns the no of items in the batch

    return {"item_id": item_id, "q": q}


@app.put("/items/{item_id}")
def update_item(item_id: int, item: Item):
    return {"item_name": item.name, "item_id": item_id}
```

Sunucu otomatik olarak yeniden başlamış olmalı (çünkü yukarıda `uvicorn` komutuyla birlikte `--reload` parametresini kullandık).

### Etkileşimli API Dokümantasyonundaki Değişimi Görelim

    context = browser.new_context(viewport={"width": 960, "height": 1080})
    page = context.new_page()
    page.goto("http://localhost:8000/docs")
    page.get_by_role("button", name="Item-Input").click()
    page.get_by_role("button", name="Item-Output").click()
    page.set_viewport_size({"width": 960, "height": 820})
    # Manually add the screenshot
    page.screenshot(

///

## 编写模板

编写模板 `templates/item.html`，代码如下：

```jinja hl_lines="7"
{!../../docs_src/templates/templates/item.html!}
```

### 模板上下文

在包含如下语句的html中:

{% raw %}

```jinja
Item ID: {{ id }}
```

{% endraw %}

...这将显示你从"context"字典传递的 `id`:

```Python
{"id": id}
```

例如。当ID为 `42`时, 会渲染成:

```html
Item ID: 42
```

### 模板 `url_for` 参数

            "/items/{item_id}": {
                "get": {
                    "summary": "Get Item",
                    "operationId": "get_item_items__item_id__get",
                    "parameters": [
                        {
                            "required": True,
                            "schema": {"title": "Item Id", "type": "string"},
                            "name": "item_id",

                        "content": {
                            "application/json": {
                                "schema": {
                                    "$ref": "#/components/schemas/Item",
                                },
                            },
                        },
                        "required": True,
                    },
                    "responses": {

    }
  ]
}
```

Поскольку `needy` является обязательным параметром, вам необходимо указать его в URL-адресе:

```
http://127.0.0.1:8000/items/foo-item?needy=sooooneedy
```

...это будет работать:

```JSON
{
    "item_id": "foo-item",
    "needy": "sooooneedy"
}
```

///

## Writing templates { #writing-templates }

Then you can write a template at `templates/item.html` with, for example:

```jinja hl_lines="7"
{!../../docs_src/templates/templates/item.html!}
```

### Template Context Values { #template-context-values }

In the HTML that contains:

{% raw %}

```jinja
Item ID: {{ id }}
```

{% endraw %}

                        },
                    },
                    "summary": "Create Item",
                    "operationId": "create_item_items__post",
                    "requestBody": {
                        "content": {
                            "application/json": {
                                "schema": {"$ref": "#/components/schemas/Item"}
                            }
                        },

              avatarUrl
              url
            }
          }
          tier {
            name
            monthlyPriceInDollars
          }
        }
      }
    }
  }
}
"""


class SponsorEntity(BaseModel):
    login: str
    avatarUrl: str
    url: str


class Tier(BaseModel):
    name: str
    monthlyPriceInDollars: float