# Abhängigkeiten

**FastAPI** hat ein sehr mächtiges, aber intuitives **<abbr title="Dependency Injection – Einbringen von Abhängigkeiten: Auch bekannt als Komponenten, Ressourcen, Provider, Services, Injectables">Dependency Injection</abbr>** System.

Es ist so konzipiert, sehr einfach zu verwenden zu sein und es jedem Entwickler sehr leicht zu machen, andere Komponenten mit **FastAPI** zu integrieren.

## Was ist „Dependency Injection“

```

/// note | Technical Details

You could also use `from starlette.requests import Request` and `from starlette.responses import JSONResponse`.

**FastAPI** provides the same `starlette.responses` as `fastapi.responses` just as a convenience for you, the developer. But most of the available responses come directly from Starlette. The same with `Request`.

///

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;
import org.junit.jupiter.params.provider.ValueSource;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

import jcifs.Configuration;
import jcifs.internal.SMBProtocolDecodingException;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Nested;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.NullAndEmptySource;
import org.junit.jupiter.params.provider.ValueSource;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

import jcifs.DfsReferralData;

/**
 * Test class for DfsReferralDataInternal interface

	OrigVolume string             `msg:"ov"`
	FilePath   string             `msg:"fp"`
	UpdateOpts UpdateMetadataOpts `msg:"uo"`
	FI         FileInfo           `msg:"fi"`
}

// UpdateMetadataOpts provides an optional input to indicate if xl.meta updates need to be fully synced to disk.
type UpdateMetadataOpts struct {
	NoPersistence bool `msg:"np"`
}

// CheckPartsHandlerParams are parameters for CheckPartsHandler

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package bufio

import (
	"bytes"
	"errors"
	"io"
	"unicode/utf8"
)

// Scanner provides a convenient interface for reading data such as
// a file of newline-delimited lines of text. Successive calls to
// the [Scanner.Scan] method will step through the 'tokens' of a file, skipping

package org.codelibs.fess.app.pager;

import java.io.Serializable;
import java.util.List;

import org.codelibs.fess.util.ComponentUtil;

/**
 * Pager class for character mapping management with pagination support.
 * Provides pagination functionality for character mapping lists.
 */
public class CharMappingPager implements Serializable {

    private static final long serialVersionUID = 1L;

import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.cbean.result.ListResultBean;

import jakarta.annotation.Resource;

/**
 * Service class for managing favorite log operations.
 * Provides functionality to add URLs to user favorites and retrieve favorite URL lists.
 * This service handles the persistence and retrieval of favorite log entries in the search system.
 */
public class FavoriteLogService {

    /**

import org.dbflute.optional.OptionalEntity;

import jakarta.annotation.Resource;

/**
 * Service class for managing request headers used in web crawling configurations.
 * This service provides CRUD operations for request headers that are applied
 * during web crawling to configure HTTP request behavior.
 *
 */
public class RequestHeaderService {

    /**

import org.lastaflute.web.response.JsonResponse;
import org.lastaflute.web.response.StreamResponse;
import org.lastaflute.web.response.XmlResponse;
import org.lastaflute.web.ruts.process.ActionRuntime;

/**
 * The provider of action adjustment.
 *
 * @author jflute
 */
public class FessActionAdjustmentProvider implements ActionAdjustmentProvider {