```Python hl_lines="6"
    {!> ../../../docs_src/security/tutorial001.py!}
    ```

!!! tip
    Here `tokenUrl="token"` refers to a relative URL `token` that we haven't created yet. As it's a relative URL, it's equivalent to `./token`.

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

### 步骤 3：创建一个*路径操作*

#### 路径

这里的「路径」指的是 URL 中从第一个 `/` 起的后半部分。

所以，在一个这样的 URL 中：

```
https://example.com/items/foo
```

...路径会是：

```
/items/foo
```

!!! info
    「路径」也通常被称为「端点」或「路由」。

开发 API 时，「路径」是用来分离「关注点」和「资源」的主要手段。

```Python hl_lines="6"
{!../../../docs_src/security/tutorial001.py!}
```

!!! tip "Dica"
	Esse `tokenUrl="token"` se refere a uma URL relativa que nós não criamos ainda. Como é uma URL relativa, é equivalente a `./token`.

    本例中，**FastAPI** 还提供了构建工具。

创建 `OAuth2PasswordBearer` 的类实例时，要传递 `tokenUrl` 参数。该参数包含客户端（用户浏览器中运行的前端） 的 URL，用于发送 `username` 与 `password`，并获取令牌。

```Python hl_lines="6"
{!../../../docs_src/security/tutorial001.py!}
```

!!! tip "提示"

    在此，`tokenUrl="token"` 指向的是暂未创建的相对 URL `token`。这个相对 URL 相当于 `./token`。

```

</div>

### Passo 3: crie uma *rota*

#### Rota

"Rota" aqui se refere à última parte da URL, começando do primeiro `/`.

Então, em uma URL como:

```
https://example.com/items/foo
```

...a rota seria:

```
/items/foo
```

!!! info "Informação"

👉 🔢 🚫 ✍ 👈 🔗 / *➡ 🛠️*, ✋️ 📣 👈 📛 `/token` 🔜 1️⃣ 👈 👩‍💻 🔜 ⚙️ 🤚 🤝. 👈 ℹ ⚙️ 🗄, & ⤴️ 🎓 🛠️ 🧾 ⚙️.

👥 🔜 🔜 ✍ ☑ ➡ 🛠️.

!!! info
    🚥 👆 📶 ⚠ "✍" 👆 💪 👎 👗 🔢 📛 `tokenUrl` ↩️ `token_url`.

    👈 ↩️ ⚫️ ⚙️ 🎏 📛 🗄 🔌. 👈 🚥 👆 💪 🔬 🌅 🔃 🙆 👫 💂‍♂ ⚖ 👆 💪 📁 & 📋 ⚫️ 🔎 🌖 ℹ 🔃 ⚫️.

`oauth2_scheme` 🔢 👐 `OAuth2PasswordBearer`, ✋️ ⚫️ "🇧🇲".

⚫️ 💪 🤙:

```Python

```

</div>

### Step 3: create a *path operation*

#### Path

"Path" here refers to the last part of the URL starting from the first `/`.

So, in a URL like:

```
https://example.com/items/foo
```

...the path would be:

```
/items/foo
```

!!! info