```python
from main import app
```

Se o seu código estiver estruturado assim:

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

Então você definiria o `entrypoint` como:

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

o que seria equivalente a:

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

```python
from main import app
```

Якщо структура вашого коду виглядала б так:

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

Тоді ви б задали `entrypoint` як:

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

що було б еквівалентно:

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

    errors in your code.

    Read more about it in the
    [FastAPI docs for Handling Errors](https://fastapi.tiangolo.com/tutorial/handling-errors/).

    ## Example

    ```python
    from fastapi import FastAPI, HTTPException

    app = FastAPI()

    items = {"foo": "The Foo Wrestlers"}


    @app.get("/items/{item_id}")
    async def read_item(item_id: str):

Read more about it in the [FastAPI docs about using Request directly](https://fastapi.tiangolo.com/advanced/using-request-directly/)

You can import it directly from `fastapi`:

```python
from fastapi import Request
```

/// tip

# `FastAPI` class

Here's the reference information for the `FastAPI` class, with all its parameters, attributes and methods.

You can import the `FastAPI` class directly from `fastapi`:

```python
from fastapi import FastAPI
```

::: fastapi.FastAPI
    options:
        members:
            - openapi_version
            - webhooks
            - state
            - dependency_overrides
            - openapi

from typing_inspection.typing_objects import is_typealiastype

multipart_not_installed_error = (
    'Form data requires "python-multipart" to be installed. \n'
    'You can install "python-multipart" with: \n\n'
    "pip install python-multipart\n"
)
multipart_incorrect_install_error = (
    'Form data requires "python-multipart" to be installed. '
    'It seems you installed "multipart" instead. \n'
    'You can remove "multipart" with: \n\n'

如果你使用 `Annotated`，這點大概沒那麼重要或必要。

///

這裡有個小技巧偶爾很好用，不過你大概不常需要。

如果你想要：

* 不用 `Query`、也不給預設值就宣告查詢參數 `q`
* 使用 `Path` 宣告路徑參數 `item_id`
* 讓它們的順序不同
* 不使用 `Annotated`

…Python 有個小語法可以做到。

在函式的參數列表最前面放一個 `*`。

Python 不會對這個 `*` 做任何事，但它會知道後續的所有參數都必須以關鍵字引數（key-value pairs）方式呼叫，也就是所謂的 <abbr title="源自：K-ey W-ord Arg-uments - 關鍵字參數"><code>kwargs</code></abbr>。即便它們沒有預設值也一樣。

## 実行 { #run-it }

/// info | 情報

[`python-multipart`](https://github.com/Kludex/python-multipart) パッケージは、`pip install "fastapi[standard]"` コマンドを実行すると **FastAPI** と一緒に自動的にインストールされます。

しかし、`pip install fastapi` コマンドを使用する場合、`python-multipart` パッケージはデフォルトでは含まれません。

手動でインストールするには、[仮想環境](../../virtual-environments.md)を作成して有効化し、次のコマンドでインストールしてください:

```console
$ pip install python-multipart
```

Read more about it in the [FastAPI docs about returning a custom Response](https://fastapi.tiangolo.com/advanced/response-directly/#returning-a-custom-response)

You can import it directly from `fastapi`:

```python
from fastapi import Response
```

## 바쁘신가요? { #in-a-hurry }

<abbr title="too long; didn't read - 너무 길어서 읽지 않음"><strong>TL;DR:</strong></abbr>

다음과 같이 `await`를 사용해 호출하라고 안내하는 제3자 라이브러리를 사용하는 경우:

```Python
results = await some_library()
```

다음처럼 *경로 처리 함수*를 `async def`를 사용해 선언하십시오:

```Python hl_lines="2"
@app.get('/')
async def read_results():
    results = await some_library()
    return results
```

/// note | 참고