#     (NotRequired - Default Java:'src/main/java' & 'src/main/resources' CSharp:'source')
    #   o sql2EntityOutputDirectory: source output directory from as a relative path from the application directory
    #     (NotRequired - Default Java:'src/main/java' CSharp:'source')
    #
    #; applicationOutsideSqlMap = map:{
    #    ; ../../app1 = map:{
    #        ; sqlDirectory = src/main/resources

{* ../../docs_src/bigger_applications/app_an_py310/main.py hl[1,3,7] title["app/main.py"] *}

### Імпортуйте `APIRouter` { #import-the-apirouter }

Тепер імпортуємо інші підмодулі, що мають `APIRouter`:

{* ../../docs_src/bigger_applications/app_an_py310/main.py hl[4:5] title["app/main.py"] *}

                <template>src/main/mdo/model-v3.vm</template>
                <template>src/main/mdo/merger.vm</template>
                <template>src/main/mdo/transformer.vm</template>
                <template>src/main/mdo/reader.vm</template>
                <template>src/main/mdo/reader-ex.vm</template>
                <template>src/main/mdo/writer.vm</template>
                <template>src/main/mdo/writer-ex.vm</template>

///

## The main `FastAPI` { #the-main-fastapi }

Now, let's see the module at `app/main.py`.

Here's where you import and use the class `FastAPI`.

This will be the main file in your application that ties everything together.

And as most of your logic will now live in its own specific module, the main file will be quite simple.

### Import `FastAPI` { #import-fastapi }

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

En el archivo `main.py` tienes tu aplicación de **FastAPI**:


{* ../../docs_src/app_testing/app_a_py310/main.py *}

### Archivo de prueba { #testing-file }

cd dbflute_fess
./manage.sh    # On Linux/Mac
manage.bat     # On Windows
# Select option 23 (generate)
```

This will regenerate:
- `src/main/java/org/codelibs/fess/mylasta/action/FessLabels.java`
- `src/main/java/org/codelibs/fess/mylasta/action/FessMessages.java`
- `src/main/java/org/codelibs/fess/mylasta/direction/FessProp.java`

### 5. Rebuild the Project

```bash
mvn clean package
```

Nehmen wir an, Sie haben eine Dateistruktur wie in [Größere Anwendungen](bigger-applications.md) beschrieben:

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

In der Datei `main.py` haben Sie Ihre **FastAPI**-Anwendung:


{* ../../docs_src/app_testing/app_a_py310/main.py *}


### Testdatei { #testing-file }

        assertOutputContains(result.output, "./src/main/java/org/acme/UnknownLicensed.java")
        assertOutputContains(result.output, "./src/main/java/org/acme/UnapprovedLicensed.java")
        result.output.contains("./src/main/java/org/acme/DualLicensed.java") == false
    }

    def "can filter source files"() {
        given:
        buildFile << """

private fun mainFiles(): List<File> {
  val directories =
    listOf(
      "$prefix/samples/guide/src/main/java/okhttp3/guide",
      "$prefix/samples/guide/src/main/java/okhttp3/recipes",
      "$prefix/samples/guide/src/main/java/okhttp3/recipes/kt",
    ).map { File(it) }

  return directories.flatMap {
    it
      .listFiles()
      .orEmpty()

因此，為了能在同一個檔案中同時使用它們，我們直接匯入子模組：

{* ../../docs_src/bigger_applications/app_an_py310/main.py hl[5] title["app/main.py"] *}

### 將 `users` 與 `items` 的 `APIRouter` 納入 { #include-the-apirouters-for-users-and-items }

現在，把子模組 `users` 與 `items` 的 `router` 納入：

{* ../../docs_src/bigger_applications/app_an_py310/main.py hl[10:11] title["app/main.py"] *}

/// info | 資訊

`users.router` 是位於 `app/routers/users.py` 檔案內的 `APIRouter`。