所有的這些都是可重複使用的工具和套件，可以輕鬆與你的系統、資料儲存（Data Stores）、關聯式資料庫（RDBMS）以及非關聯式資料庫（NoSQL）等等整合。

### 依賴注入（Dependency Injection） { #dependency-injection }

FastAPI 有一個使用簡單，但是非常強大的 <dfn title='也稱為「components」、「resources」、「services」、「providers」'><strong>依賴注入</strong></dfn> 系統。

* 依賴項甚至可以有自己的依賴，從而形成一個層級或**依賴圖**的結構。
* 所有**自動化處理**都由框架完成。
* 依賴項不僅能從請求中提取資料，還能**對 API 的路徑操作進行強化**，並自動生成文檔。
* 即使是依賴項中定義的*路徑操作參數*，也會**自動進行驗證**。

you may have executed with Licensor regarding such Contributions. 

6. Trademarks. This License does not grant permission to use the trade 
names, trademarks, service marks, or product names of the Licensor, except 
as required for reasonable and customary use in describing the origin of the 
Work and reproducing the content of the NOTICE file. 

native-image-svm = { module = "org.graalvm.nativeimage:svm", version.ref = "graalvm" }
openjsse = { module = "org.openjsse:openjsse", version.ref = "openjsse" }
playservices-safetynet = { module = "com.google.android.gms:play-services-safetynet", version.ref = "playservices-safetynet" }
square-retrofit = { module = "com.squareup.retrofit2:retrofit", version.ref = "square-retrofit" }

### Dependency Injection { #dependency-injection }

FastAPI includes an extremely easy to use, but extremely powerful <dfn title='also known as "components", "resources", "services", "providers"'><strong>Dependency Injection</strong></dfn> system.

* Even dependencies can have dependencies, creating a hierarchy or **"graph" of dependencies**.
* All **automatically handled** by the framework.

    to change, and the implementation is incomplete. This is a big new API we
    are eager for feedback.

 *  New: Support ALPN via Google Play Services' Dynamic Security Provider. This
    expands HTTP/2 support to older Android devices that have Google Play
    Services.
 *  New: Consider all routes when looking for candidate coalesced connections.
    This increases the likelihood that HTTP/2 connections will be shared.

  - [Changelog since v1.30.9](#changelog-since-v1309)
  - [Important Security Information](#important-security-information)
    - [CVE-2025-0426: Node Denial of Service via Kubelet Checkpoint API](#cve-2025-0426-node-denial-of-service-via-kubelet-checkpoint-api)
  - [Changes by Kind](#changes-by-kind-4)
    - [Feature](#feature-2)
    - [Bug or Regression](#bug-or-regression-3)

A documentação da API usa **Swagger UI** e **ReDoc**, e cada um deles precisa de alguns arquivos JavaScript e CSS.

Por padrão, esses arquivos são fornecidos por um <abbr title="Content Delivery Network - Rede de Entrega de Conteúdo: Um serviço, normalmente composto por vários servidores, que fornece arquivos estáticos, como JavaScript e CSS. É comumente usado para servir esses arquivos a partir do servidor mais próximo do cliente, melhorando o desempenho.">CDN</abbr>.

// ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.annotation.Secured;
import org.codelibs.fess.app.pager.StemmerOverridePager;
import org.codelibs.fess.app.service.StemmerOverrideService;
import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.app.web.admin.dict.AdminDictAction;
import org.codelibs.fess.app.web.base.FessAdminAction;

# Settings and Environment Variables { #settings-and-environment-variables }

In many cases your application could need some external settings or configurations, for example secret keys, database credentials, credentials for email services, etc.

Most of these settings are variable (can change), like database URLs. And many could be sensitive, like secrets.

For this reason it's common to provide them in environment variables that are read by the application.

/// tip