일부 경우에는 `Request`와 `APIRoute` 클래스에서 사용되는 로직을 오버라이드하고 싶을 수 있습니다.

특히, 이는 middleware에 있는 로직의 좋은 대안이 될 수 있습니다.

예를 들어, 애플리케이션에서 처리되기 전에 요청 바디를 읽거나 조작하고 싶을 때가 그렇습니다.

/// danger | 위험

이 기능은 "고급" 기능입니다.

**FastAPI**를 이제 막 시작했다면 이 섹션은 건너뛰는 것이 좋습니다.

///

## 사용 사례 { #use-cases }

사용 사례에는 다음이 포함됩니다:

In particular, this may be a good alternative to logic in a middleware.

For example, if you want to read or manipulate the request body before it is processed by your application.

/// danger

This is an "advanced" feature.

If you are just starting with **FastAPI** you might want to skip this section.

///

## Use cases { #use-cases }

Some use cases include:

MinIO is a high performance distributed object storage server, designed for large-scale private cloud infrastructure. MinIO is designed in a cloud-native manner to scale sustainably in multi-tenant environments. Orchestration platforms like Kubernetes provide perfect cloud-native environment to deploy and scale MinIO.

## MinIO Deployment on Kubernetes

      with:
        java-version: '21'
        distribution: 'temurin'
    - uses: actions/cache@v4
      with:
        path: ~/.m2/repository
        key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
        restore-keys: |
          ${{ runner.os }}-maven-
    - name: Checkout fess-parent
      uses: actions/checkout@v4
      with:
        repository: codelibs/fess-parent
        ref: ${{ env.PARENT_BRANCH }}

						<li class="nav-item" data-bs-toggle="tooltip" data-placement="left" title="<la:message key="labels.eol_error" />">
							<a class="nav-link active" href="${eolLink}" target="_olh"><i class="fas fa-times-circle text-danger" aria-hidden="true"></i></a>
						</li>
					</c:if>
					<c:if test="${developmentMode}">
						<li class="nav-item" data-bs-toggle="tooltip" data-placement="left"

						<li class="nav-item" data-bs-toggle="tooltip" data-placement="left" title="<la:message key="labels.eol_error" />">
							<a class="nav-link active" href="${eolLink}" target="_olh"><i class="fas fa-times-circle text-danger" aria-hidden="true"></i></a>
						</li>
					</c:if>
					<c:if test="${developmentMode}">
						<li class="nav-item" data-bs-toggle="tooltip" data-placement="left"

	if err != nil {
		return nil, err
	}
	defer mountInfo.Close()

	scanner := bufio.NewScanner(mountInfo)
	for scanner.Scan() {
		s := strings.Split(scanner.Text(), " ")
		if len(s) != 11 {
			return nil, errors.New("unsupported /proc/self/mountinfo format")
		}
		result[s[2]] = s[9]
	}

	if err := scanner.Err(); err != nil {
		return nil, err
	}

	return result, nil
}

Wenn Sie beispielsweise den <abbr title="Anfragekörper">Requestbody</abbr> lesen oder manipulieren möchten, bevor er von Ihrer Anwendung verarbeitet wird.

/// danger | Gefahr

Dies ist eine „fortgeschrittene“ Funktion.

Wenn Sie gerade erst mit **FastAPI** beginnen, möchten Sie diesen Abschnitt vielleicht überspringen.

///

## Anwendungsfälle { #use-cases }

* The **input model** needs to be able to have a password.
* The **output model** should not have a password.
* The **database model** would probably need to have a hashed password.

/// danger

Never store user's plaintext passwords. Always store a "secure hash" that you can then verify.

If you don't know, you will learn what a "password hash" is in the [security chapters](security/simple-oauth2.md#password-hashing).

# 自訂 Request 與 APIRoute 類別 { #custom-request-and-apiroute-class }

在某些情況下，你可能想要覆寫 `Request` 與 `APIRoute` 類別所使用的邏輯。

特別是，這可能是替代中介軟體（middleware）中實作邏輯的一個好方法。

例如，如果你想在應用程式處理之前讀取或操作請求本文（request body）。

/// danger

這是進階功能。

如果你剛開始使用 **FastAPI**，可以先跳過本節。

///

## 使用情境 { #use-cases }

可能的使用情境包括：

* 將非 JSON 的請求本文轉換為 JSON（例如 [`msgpack`](https://msgpack.org/index.html)）。
* 解壓縮以 gzip 壓縮的請求本文。
* 自動記錄所有請求本文。