### Внедрение зависимостей

FastAPI включает в себя чрезвычайно простую в использовании, но чрезвычайно мощную систему <abbr title='известную как: "components", "resources", "services", "providers"'><strong>Внедрения зависимостей</strong></abbr>.

* Даже зависимости могут иметь зависимости, создавая иерархию или **"графы" зависимостей**.
* Всё **автоматически обрабатывается** фреймворком.

### Dependency Injection

FastAPI bao gồm một hệ thống <abbr title='cũng biết đến như là "components", "resources", "services", "providers"'><strong>Dependency Injection</strong></abbr> vô cùng dễ sử dụng nhưng vô cùng mạnh mẽ.

* Thậm chí, các dependency có thể có các dependency khác, tạo thành một phân cấp hoặc **"một đồ thị" của các dependency**.

    }

    /** Two-arg method with the both params Nullable. */
    public void nullableNullable(@Nullable String first, @Nullable Integer second) {
      reactToNullParameters(first, second);
    }

    /** To provide sanity during debugging. */
    @Override
    public String toString() {
      return rootLocaleFormat(
          "Bar(%s, %s)", actionWhenFirstParamIsNull, actionWhenSecondParamIsNull);
    }
  }

import okhttp3.internal.http.MAX_DATE
import okhttp3.internal.parseCookie
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.assertThrows
import org.junit.jupiter.params.ParameterizedTest
import org.junit.jupiter.params.provider.ValueSource

class CookieTest {
  val url = "https://example.com/".toHttpUrl()

  @Test fun simpleCookie() {
    val cookie = parse(url, "SID=31d4d96e407aad42")

            assertNotNull(resource.getContext(), "Should have CIFS context for SMB operations");
            assertNotNull(resource.getLocator(), "Should have resource locator for SMB addressing");

            // Verify interface provides SMB-specific functionality
            assertTrue(SmbResource.class.isInterface(), "Should be an interface");

# Bigger Applications - Multiple Files { #bigger-applications-multiple-files }

If you are building an application or a web API, it's rarely the case that you can put everything in a single file.

**FastAPI** provides a convenience tool to structure your application while keeping all the flexibility.

/// info

If you come from Flask, this would be the equivalent of Flask's Blueprints.

///

## An example file structure { #an-example-file-structure }

import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;

import jakarta.annotation.PostConstruct;

/**
 * Helper class for managing crawling configurations.
 * Provides functionality to store, retrieve, and manage different types of crawling configurations
 * including web, file, and data configurations. Supports caching and session-based configuration management.
 */

import jcifs.smb1.dcerpc.ndr.NdrException;
import jcifs.smb1.dcerpc.ndr.NdrLong;
import jcifs.smb1.dcerpc.ndr.NdrObject;

/**
 * DCE/RPC interface for Distributed File System (DFS) operations.
 * Provides structures and methods for DFS management and enumeration.
 */
public class netdfs {

    /**
     * Default constructor for netdfs
     */
    public netdfs() {
        // Default constructor
    }

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.ValueSource;

import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.util.SMBUtil;
import jcifs.smb.SID;

/**
 * Test class for SecurityDescriptor
 */
class SecurityDescriptorTest {

import jcifs.smb1.Config;
import jcifs.smb1.UniAddress;
import jcifs.smb1.netbios.NbtAddress;
import jcifs.smb1.util.LogStream;

/**
 * The SmbSession class represents an SMB session established with a server.
 * It provides methods for authentication and session management.
 */
public final class SmbSession {

    private static final String LOGON_SHARE = Config.getProperty("jcifs.smb1.smb.client.logonShare", null);