```python
from main import app
```

Если ваш код организован так:

```
.
├── backend
│   ├── main.py
│   ├── __init__.py
```

Тогда следует указать `entrypoint` так:

```toml
[tool.fastapi]
entrypoint = "backend.main:app"
```

что будет эквивалентно:

```python
from backend.main import app
```

/// info

Before, this page used to list links to external articles.

But now that FastAPI is the backend framework with the most GitHub stars across languages, and the most starred and used framework in Python, it no longer makes sense to attempt to list all articles written about it.

///

## GitHub Repositories

Most starred [GitHub repositories with the topic `fastapi`](https://github.com/topics/fastapi):

            This will be used to extract the data and for the generated OpenAPI.
            It is particularly useful when you can't use the name you want because it
            is a Python reserved keyword or similar.
            """
        ),
    ] = None,
    alias_priority: Annotated[
        int | None,
        Doc(
            """

## データモデルの作成 { #create-your-data-model }

次に、`BaseModel` を継承するクラスとしてデータモデルを宣言します。

すべての属性に標準のPython型を使用します:

{* ../../docs_src/body/tutorial001_py310.py hl[5:9] *}


クエリパラメータの宣言と同様に、モデル属性がデフォルト値を持つ場合は必須ではありません。そうでなければ必須です。単にオプションにするには `None` を使用してください。

例えば、上記のモデルは次のようなJSON「`object`」（またはPythonの `dict`）を宣言します:

```JSON
{
    "name": "Foo",
    "description": "An optional description",
    "price": 45.2,

{* ../../docs_src/response_model/tutorial002_py310.py hl[7,9] *}

/// info | Bilgi

`EmailStr` kullanmak için önce [`email-validator`](https://github.com/JoshData/python-email-validator) paketini kurun.

Bir [virtual environment](../virtual-environments.md) oluşturduğunuzdan, onu aktive ettiğinizden emin olun ve ardından örneğin şöyle kurun:

```console
$ pip install email-validator
```

TFCI_MACOS_BAZEL_TEST_DIR_ENABLE=1
TFCI_MACOS_BAZEL_TEST_DIR_PATH="/Volumes/BuildData/bazel_output"
TFCI_OUTPUT_DIR=build_output
TFCI_WHL_BAZEL_TEST_ENABLE=1
TFCI_WHL_SIZE_LIMIT=245M
TFCI_WHL_SIZE_LIMIT_ENABLE=1

# 3.11 is the system python on our images
case $TFCI_PYTHON_VERSION in
3.11)
  TFCI_MACOS_PYENV_INSTALL_ENABLE=0
  ;;
3.13)
  TFCI_MACOS_UPGRADE_PYENV_ENABLE=1
  TFCI_MACOS_PYENV_INSTALL_ENABLE=1
  ;;
*)

{* ../../docs_src/middleware/tutorial001_py310.py hl[10,12:13] *}

/// tip | 팁

여기서는 이러한 사용 사례에서 더 정확할 수 있기 때문에 `time.time()` 대신 [`time.perf_counter()`](https://docs.python.org/3/library/time.html#time.perf_counter)를 사용합니다. 🤓

///

## 여러 미들웨어 실행 순서 { #multiple-middleware-execution-order }

`TestClient` 在内部通过一些“魔法”操作，使得您可以在普通的 `def` 测试函数中调用异步的 FastAPI 应用程序，并使用标准的 pytest。但当我们在异步函数中使用它时，这种“魔法”就不再生效了。由于测试以异步方式运行，我们无法在测试函数中继续使用 `TestClient`。

`TestClient` 是基于 [HTTPX](https://www.python-httpx.org) 的。幸运的是，我们可以直接使用它来测试 API。

## 示例 { #example }

举个简单的例子，让我们来看一个与[更大的应用](../tutorial/bigger-applications.md)和[测试](../tutorial/testing.md)中描述的类似文件结构：

```
.
├── app
│   ├── __init__.py

        Object result = jobExecutor.execute("javascript", "console.log('test')");
        assertEquals("Executed: javascript console.log('test')", result);

        result = jobExecutor.execute("python", "print('test')");
        assertEquals("Executed: python print('test')", result);

        result = jobExecutor.execute("groovy", "println 'test'");
        assertEquals("Executed: groovy println 'test'", result);
    }

    @Test

```python
from main import app
```

Якщо ваш код має таку структуру:

```
.
├── backend
│   ├── main.py
│   ├── __init__.py
```

Тоді ви встановили б `entrypoint` як:

```toml
[tool.fastapi]
entrypoint = "backend.main:app"
```

що еквівалентно:

```python
from backend.main import app
```