# Resposta Personalizada - HTML, Stream, File e outras { #custom-response-html-stream-file-others }

Por padrão, o **FastAPI** retornará respostas JSON.

Você pode sobrescrever isso retornando uma `Response` diretamente, como visto em [Retornando uma Resposta Diretamente](response-directly.md).

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.function.BiConsumer;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import java.util.stream.Stream;

/**
 * NOTICE: this class is invoked via java command line, so we must NOT DEPEND ON ANY 3RD-PARTY LIBRARIES except JDK 11.
 *

/// tip | Совет

Если вам нужно стримить бинарные данные, например видео или аудио, посмотрите расширенное руководство: [Stream Data](../advanced/stream-data.md).

///

## Стриминг SSE с FastAPI { #stream-sse-with-fastapi }

Чтобы стримить SSE с FastAPI, используйте `yield` в своей функции-обработчике пути и укажите `response_class=EventSourceResponse`.

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.api;

import java.util.Collections;
import java.util.Map;
import java.util.stream.Collectors;
import java.util.stream.Stream;

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

/**

     * @param targetInstanceId the instance ID to check.
     * @return {@code true} if the instance is active.
     */
    public boolean isInstanceActive(final String targetInstanceId) {
        return getActiveInstances().stream().anyMatch(i -> i.instanceId.equals(targetInstanceId));
    }

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

                return true;
            }
        });

        final MockHttpServletRequest request = new MockHttpServletRequest();
        request.setServletPath("/api/v1/chat/stream");

        assertTrue(chatApiManager.matches(request));
    }

    @Test
    public void test_matches_ragChatEnabled_invalidPath() {
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {

import java.util.Map;
import java.util.Set;

import org.codehaus.plexus.classworlds.realm.ClassRealm;

import static java.util.function.Function.identity;
import static java.util.stream.Collectors.collectingAndThen;
import static java.util.stream.Collectors.toMap;

/**
 * Provides information about artifacts (identified by groupId:artifactId string key) and classpath elements exported by

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import org.apache.maven.api.Lifecycle;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.lifecycle.LifecycleNotFoundException;

import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.SortedMap;
import java.util.function.BinaryOperator;
import java.util.function.Function;
import java.util.stream.Collector;
import java.util.stream.Collectors;
import org.jspecify.annotations.Nullable;

/**
 * A {@link Map} whose contents will never change, with many other important properties detailed at
 * {@link ImmutableCollection}.
 *

   *
   * <p>For example:
   *
   * {@snippet :
   * Stream.of("foo", "quux", "banana", "elephant").collect(least(2, comparingInt(String::length)))
   * // returns {"foo", "quux"}
   * }
   *
   * <p>This {@code Collector} uses O(k) memory and takes expected time O(n) (worst-case O(n log
   * k)), as opposed to e.g. {@code Stream.sorted(comparator).limit(k)}, which currently takes O(n
   * log n) time and O(n) space.