Vemos que vamos a necesitar algunas dependencias usadas en varios lugares de la aplicación.

Así que las ponemos en su propio módulo `dependencies` (`app/dependencies.py`).

Ahora utilizaremos una dependencia simple para leer un header `X-Token` personalizado:

{* ../../docs_src/bigger_applications/app_an_py39/dependencies.py hl[3,6:8] title["app/dependencies.py"] *}

/// tip | Consejo

    <suppress checks="ConstantName"
              files=".*[/\\]internal-architecture-testing[/\\]src[/\\]main[/\\]java[/\\]org[/\\]gradle[/\\].+" />

    <!-- Ignore all checks for the generated sources of org.gradle.samples plugin -->
    <suppress checks=".*" files=".*[/\\]docs[/\\]build[/\\]generated-source-sets[/\\].+" />
    <suppress checks=".*" files=".*[/\\].*[/\\]groovy-dsl-plugins[/\\].+" />

        int trailerLength = 10; // Default trailer length for testing
        int trailerBytesRead = 0;

        @Override
        int writeTrailerWireFormat(byte[] dst, int dstIndex) {
            // Simple mock implementation
            for (int i = 0; i < trailerLength && dstIndex + i < dst.length; i++) {
                dst[dstIndex + i] = (byte) i;
            }
            return trailerLength;
        }

Mas você também pode explorar os benefícios do paralelismo e multiprocessamento (tendo múltiplos processadores rodando em paralelo) para trabalhos **limitados por CPU** como aqueles em sistemas de Aprendizado de Máquina.

Isso, somado ao simples fato que Python é a principal linguagem para **Data Science**, Aprendizado de Máquina e especialmente Deep Learning, faz do FastAPI uma ótima escolha para APIs web e aplicações com Data Science / Aprendizado de Máquina (entre muitas outras).

     * Retrieves the descriptor for the specified plugin goal from the plugin's main artifact.
     *
     * @param plugin The plugin whose mojo descriptor should be retrieved, must not be {@code null}.
     * @param goal The simple name of the mojo whose descriptor should be retrieved, must not be {@code null}.
     * @param repositories The plugin repositories to use for resolving the plugin's main artifact, must not be {@code
     *            null}.

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.Timeout;
import org.mockito.Mockito;

import jcifs.CIFSContext;
import jcifs.Configuration;
import jcifs.Credentials;

/**
 * Simple memory management tests to validate basic resource cleanup functionality
 */
public class SimpleMemoryManagementTest {

    private CIFSContext mockContext;
    private SmbTransportImpl mockTransport;

        //
        // Continuum and other server-like apps may need to locate the user-level and
        // global-level settings somewhere other than ${user.home} and ${maven.home},
        // respectively. Using a simple replacement of these patterns will allow them
        // to specify the absolute path to these files in a customized components.xml
        // file. Ideally, we'd do full pattern-evaluation against the sysprops, but this

    suite.addTest(
        SetTestSuiteBuilder.using(
                new TestCellSetGenerator() {
                  @Override
                  public SampleElements<Cell<String, Integer, Character>> samples() {
                    return new SampleElements<>(
                        immutableCell("bar", 1, 'a'),
                        immutableCell("bar", 2, 'b'),

import java.util.List;

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.annotations.Nullable;

/**
 * Defines a simple logging interface for Maven CLI operations. These operations happen "early", when there may
 * be no logging set up even. Implementations may be "accumulating", in which case {@link #drain()}  method should
 * be used.
 * <p>

Это говорит браузеру показать встроенное окно запроса имени пользователя и пароля.

Затем, когда вы вводите эти данные, браузер автоматически отправляет их в заголовке.

## Простой HTTP Basic Auth { #simple-http-basic-auth }

* Импортируйте `HTTPBasic` и `HTTPBasicCredentials`.
* Создайте «схему» `security` с помощью `HTTPBasic`.
* Используйте эту `security` как зависимость в вашей *операции пути*.