# Aplicações Maiores - Múltiplos Arquivos { #bigger-applications-multiple-files }

Se você está construindo uma aplicação ou uma API web, é raro que você possa colocar tudo em um único arquivo.

**FastAPI** oferece uma ferramenta conveniente para estruturar sua aplicação, mantendo toda a flexibilidade.

/// info | Informação

Se você vem do Flask, isso seria o equivalente aos Blueprints do Flask.

///

# 更大的应用 - 多个文件 { #bigger-applications-multiple-files }

如果你正在开发一个应用程序或 Web API，很少会将所有的内容都放在一个文件中。

**FastAPI** 提供了一个方便的工具，可以在保持所有灵活性的同时构建你的应用程序。

/// info | 信息

如果你来自 Flask，那这将相当于 Flask 的 Blueprints。

///

## 一个文件结构示例 { #an-example-file-structure }

假设你的文件结构如下：

```
.
├── app
│   ├── __init__.py
│   ├── main.py
│   ├── dependencies.py
│   └── routers
│   │   ├── __init__.py
│   │   ├── items.py

# 大規模アプリケーション - 複数ファイル { #bigger-applications-multiple-files }

アプリケーションや Web API を作る場合、すべてを1つのファイルに収められることはほとんどありません。

**FastAPI** は、柔軟性を保ったままアプリケーションを構造化できる便利なツールを提供します。

/// info | 情報

Flask 出身であれば、Flask の Blueprint に相当します。

///

## 例のファイル構成 { #an-example-file-structure }

次のようなファイル構成があるとします:

```
.
├── app
│   ├── __init__.py
│   ├── main.py
│   ├── dependencies.py
│   └── routers
│   │   ├── __init__.py

## Dependencies for groups of *path operations* { #dependencies-for-groups-of-path-operations }

    }

    private BytesReference buildBigExample(String extraText) throws IOException {
        String bigger = read300BytesExample().utf8ToString();
        bigger = "{\"huge\": \"" + extraText + "\"," + bigger.substring(1);
        return new BytesArray(bigger);
    }

    @Benchmark
    public BytesReference filterObjects() throws IOException {
        SourceLookup lookup = new SourceLookup();

  private static CharBuffer grow(CharBuffer buf) {
    char[] copy = Arrays.copyOf(buf.array(), buf.capacity() * 2);
    CharBuffer bigger = CharBuffer.wrap(copy);
    Java8Compatibility.position(bigger, buf.position());
    Java8Compatibility.limit(bigger, buf.limit());
    return bigger;
  }

  /** Handle the case of underflow caused by needing more input characters. */
  private void readMoreChars() throws IOException {

## *Path operations* grupları için Dependencies { #dependencies-for-groups-of-path-operations }

## Dependencies for a group of *path operations* { #dependencies-for-a-group-of-path-operations }

Later, when reading about how to structure bigger applications ([Bigger Applications - Multiple Files](../../tutorial/bigger-applications.md)), possibly with multiple files, you will learn how to declare a single `dependencies` parameter for a group of *path operations*.

## Global Dependencies { #global-dependencies }

## Bir *Path Operation* Grubu İçin Dependency'ler { #dependencies-for-a-group-of-path-operations }

Daha sonra, muhtemelen birden fazla dosya kullanarak daha büyük uygulamaları nasıl yapılandıracağınızı okurken ([Bigger Applications - Multiple Files](../../tutorial/bigger-applications.md)), bir *path operation* grubu için tek bir `dependencies` parametresini nasıl tanımlayacağınızı öğreneceksiniz.

## Global Dependency'ler { #global-dependencies }

And the `items_per_user` would keep its default value of `50`.

## Settings in another module { #settings-in-another-module }

You could put those settings in another module file as you saw in [Bigger Applications - Multiple Files](../tutorial/bigger-applications.md).

For example, you could have a file `config.py` with:

{* ../../docs_src/settings/app01_py310/config.py *}

And then use it in a file `main.py`: