**２行**。

そして、それはすべての*path operation関数*が持っているのと同じ形と構造を持っています。

「デコレータ」を含まない（`@app.get("/some-path")`を含まない）*path operation関数*と考えることもできます。

そして何でも返すことができます。

この場合、この依存関係は以下を期待しています:

* オプショナルのクエリパラメータ`q`は`str`です。
* オプショナルのクエリパラメータ`skip`は`int`で、デフォルトは`0`です。
* オプショナルのクエリパラメータ`limit`は`int`で、デフォルトは`100`です。

そして、これらの値を含む`dict`を返します。

### `Depends`のインポート

```Python hl_lines="3"

{!../../docs_src/bigger_applications/app/routers/items.py!}
```

➡ 🔠 *➡ 🛠️* ✔️ ▶️ ⏮️ `/`, 💖:

```Python hl_lines="1"
@router.get("/{item_id}")
async def read_item(item_id: str):
    ...
```

...🔡 🔜 🚫 🔌 🏁 `/`.

, 🔡 👉 💼 `/items`.

👥 💪 🚮 📇 `tags` & ➕ `responses` 👈 🔜 ✔ 🌐 *➡ 🛠️* 🔌 👉 📻.

In this case, it's the `str`:

```Python
"{$callback_url}/invoices/{$request.body.id}"
```

So, if your API user (the external developer) sends a request to *your API* to:

```

///

### Adım 5: İçeriği Geri Döndürün

```Python hl_lines="8"
{!../../docs_src/first_steps/tutorial001.py!}
```

Bir `dict`, `list` veya `str`, `int` gibi tekil değerler döndürebilirsiniz.

Ayrıca, Pydantic modelleri de döndürebilirsiniz (bu konu ileriki aşamalarda irdelenecektir).

Nesse caso, é a `str`:

```Python
"{$callback_url}/invoices/{$request.body.id}"
```

Então, se o usuário da sua API (o desenvolvedor externo) enviar uma solicitação para *sua API* para:

```

        querySet.add("on");
        document.put("title", "on 111 strong on aaaa");
        assertEquals("<strong>on</strong> 111 str<strong>on</strong>g <strong>on</strong> <strong>aaa</strong>a",
                viewHelper.getContentTitle(document));

        querySet.add("$");
        document.put("title", "$test");

```JSON
{
  "detail": "Item not found"
}
```

/// tip

When raising an `HTTPException`, you can pass any value that can be converted to JSON as the parameter `detail`, not only `str`.

You could pass a `dict`, a `list`, etc.

They are handled automatically by **FastAPI** and converted to JSON.

///

## Add custom headers

		case makeReg:
			r := testNonEmptyReader{strings.NewReader(maker.str)}
			fr = &regFileReader{r, maker.size}
		case makeSparse:
			if !validateSparseEntries(maker.spd, maker.size) {
				t.Fatalf("invalid sparse map: %v", maker.spd)
			}
			sph := invertSparseEntries(maker.spd, maker.size)
			r := testNonEmptyReader{strings.NewReader(maker.makeReg.str)}
			fr = &regFileReader{r, maker.makeReg.size}

                    putResultDataBody(dataMap, entry.getKey(), d.toString());
                    break;
                case STRING:
                    final String str = (String) xObj.value();
                    putResultDataBody(dataMap, entry.getKey(), str);
                    break;
                default:
                    final Boolean isPruned = fieldPrunedRuleMap.get(entry.getKey());

* `Field(index=True)` informa ao SQLModel que ele deve criar um **índice SQL** para essa coluna, o que permitirá buscas mais rápidas no banco de dados ao ler dados filtrados por essa coluna.

    O SQLModel saberá que algo declarado como `str` será uma coluna SQL do tipo `TEXT` (ou `VARCHAR`, dependendo do banco de dados).

### Criar um Engine