# Debugging

You can connect the debugger in your editor, for example with Visual Studio Code or PyCharm.

## Call `uvicorn`

In your FastAPI application, import and run `uvicorn` directly:

```Python hl_lines="1  15"
{!../../docs_src/debugging/tutorial001.py!}
```

### About `__name__ == "__main__"`

The main purpose of the `__name__ == "__main__"` is to have some code that is executed when your file is called with:

{!../../docs_src/websockets/tutorial001.py!}
```

👆 💪 📨 & 📨 💱, ✍, & 🎻 💽.

## 🔄 ⚫️

🚥 👆 📁 📛 `main.py`, 🏃 👆 🈸 ⏮️:

<div class="termy">

```console
$ uvicorn main:app --reload

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

</div>

📂 👆 🖥 <a href="http://127.0.0.1:8000" class="external-link" target="_blank">http://127.0.0.1:8000</a>.

</pre>
```

</div>

////

//// tab | `uvicorn`

If you prefer to use the `uvicorn` command directly:

<div class="termy">

```console
$ uvicorn main:app --host 0.0.0.0 --port 8080 --workers 4
<font color="#A6E22E">INFO</font>:     Uvicorn running on <b>http://0.0.0.0:8080</b> (Press CTRL+C to quit)

```

</div>

Uygulamamızı kullanılabilir hale getirmek için <a href="http://www.uvicorn.org" class="external-link" target="_blank">Uvicorn</a> ya da <a href="https://github.com/pgjones/hypercorn" class="external-link" target="_blank">Hypercorn</a> gibi bir ASGI sunucusuna ihtiyacımız olacak.

<div class="termy">

```console
$ pip install "uvicorn[standard]"

---> 100%
```

</div>

## Örnek

👆 💪 👟 🔙 & 👀 ⚫️❔ ⚫️❔ 👆 💪.

## 🏃 📟

🌐 📟 🍫 💪 📁 & ⚙️ 🔗 (👫 🤙 💯 🐍 📁).

🏃 🙆 🖼, 📁 📟 📁 `main.py`, & ▶️ `uvicorn` ⏮️:

<div class="termy">

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
<span style="color: green;">INFO</span>:     Started reloader process [28720]

{!../../docs_src/sub_applications/tutorial001.py!}
```

### اسناد API خودکار را بررسی کنید

برنامه را با استفاده از ‘uvicorn‘ اجرا کنید، اگر فایل شما ‘main.py‘ نام دارد، دستور زیر را وارد کنید:
<div class="termy">

```console
$ uvicorn main:app --reload

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

</div>

# 调试

你可以在编辑器中连接调试器，例如使用 Visual Studio Code 或 PyCharm。

## 调用 `uvicorn`

在你的 FastAPI 应用中直接导入 `uvicorn` 并运行：

```Python hl_lines="1  15"
{!../../docs_src/debugging/tutorial001.py!}
```

### 关于 `__name__ == "__main__"`

`__name__ == "__main__"` 的主要目的是使用以下代码调用文件时执行一些代码：

<div class="termy">

```console
$ python myapp.py
```

</div>

而当其它文件导入它时并不会被调用，像这样：

```Python
from myapp import app
```

```

</div>

...isso também inclui o `uvicorn`, que você pode usar como o servidor que rodará seu código.

/// note | "Nota"

Você também pode instalar parte por parte.

Isso é provavelmente o que você faria quando você quisesse lançar sua aplicação em produção:

```
pip install fastapi
```

Também instale o `uvicorn` para funcionar como servidor:

```
pip install "uvicorn[standard]"
```

### Providing the `root_path`

To achieve this, you can use the command line option `--root-path` like:

<div class="termy">

```console
$ fastapi run main.py --root-path /api/v1

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

</div>

```console
$ pip install fastapi

---> 100%
```

</div>

프로덕션을 위해 <a href="http://www.uvicorn.org" class="external-link" target="_blank">Uvicorn</a> 또는 <a href="https://github.com/pgjones/hypercorn" class="external-link" target="_blank">Hypercorn</a>과 같은 ASGI 서버도 필요할 겁니다.

<div class="termy">

```console
$ pip install "uvicorn[standard]"

---> 100%
```

</div>

## 예제

### 만들기