E você quer uma maneira de o frontend autenticar o backend, usando um **username** e **senha**.

Nós podemos usar o **OAuth2** junto com o **FastAPI**.

Mas, vamos poupar-lhe o tempo de ler toda a especificação apenas para achar as pequenas informações que você precisa.

Vamos usar as ferramentas fornecidas pela **FastAPI** para lidar com segurança.

## Como Parece

import org.opensearch.search.aggregations.metrics.TopHitsAggregationBuilder;
import org.opensearch.search.aggregations.metrics.ValueCountAggregationBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public abstract class BsThumbnailQueueCA extends EsAbstractConditionAggregation {

    // ===================================================================================

import java.util.Comparator;
import java.util.List;
import java.util.Locale;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Unit test for {@link Chars}.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public class CharsTest extends TestCase {
  private static final char[] EMPTY = {};
  private static final char[] ARRAY1 = {(char) 1};

import java.lang.reflect.TypeVariable;
import java.util.Collections;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Unit tests for {@link Invokable}.
 *
 * @author Ben Yu
 */
@AndroidIncompatible // lots of failures, possibly some related to bad equals() implementations?
public class InvokableTest extends TestCase {

import java.util.List;
import java.util.Locale;
import java.util.Random;
import java.util.concurrent.TimeUnit;
import junit.framework.TestCase;
import org.mockito.Mockito;

/**
 * Tests for RateLimiter.
 *
 * @author Dimitris Andreou
 */
public class RateLimiterTest extends TestCase {
  private static final double EPSILON = 1e-8;

  private final FakeStopwatch stopwatch = new FakeStopwatch();

  public void testSimple() {

 * used when the type mapping isn't implied by the static type hierarchy, but provided through other
 * means such as an annotation or external configuration file.
 *
 * @author Ben Yu
 * @since 15.0
 */
@ElementTypesAreNonnullByDefault
public final class TypeResolver {

  private final TypeTable typeTable;

  public TypeResolver() {
    this.typeTable = new TypeTable();
  }

import junit.framework.TestCase;
import junit.framework.TestSuite;

/**
 * Tests for {@link MoreFiles}.
 *
 * <p>Note: {@link MoreFiles#fileTraverser()} is tested in {@link MoreFilesFileTraverserTest}.
 *
 * @author Colin Decker
 */

public class MoreFilesTest extends TestCase {

  public static TestSuite suite() {
    TestSuite suite = new TestSuite();
    suite.addTest(
        ByteSourceTester.tests(

/**
 * This class encapsulates the logic for switching tree connections
 * 
 * Switching trees can occur either when the tree has been disconnected by failure or idle-timeout - as well as on
 * DFS referrals.
 * 
 * @author mbechler
 *
 */
class SmbTreeConnection {

    private static final Logger log = LoggerFactory.getLogger(SmbTreeConnection.class);

    private final CIFSContext ctx;
    private final SmbTreeConnection delegate;

import java.util.List;
import java.util.Locale;
import java.util.Random;
import java.util.concurrent.TimeUnit;
import junit.framework.TestCase;
import org.mockito.Mockito;

/**
 * Tests for RateLimiter.
 *
 * @author Dimitris Andreou
 */
public class RateLimiterTest extends TestCase {
  private static final double EPSILON = 1e-8;

  private final FakeStopwatch stopwatch = new FakeStopwatch();

  public void testSimple() {

import java.util.stream.Collector;
import javax.annotation.CheckForNull;

/**
 * A {@link RangeSet} whose contents will never change, with many other important properties
 * detailed at {@link ImmutableCollection}.
 *
 * @author Louis Wasserman
 * @since 14.0
 */
@SuppressWarnings("rawtypes") // https://github.com/google/guava/issues/989
@GwtIncompatible
@ElementTypesAreNonnullByDefault