OkHttp is an HTTP client that’s efficient by default:

 * HTTP/2 support allows all requests to the same host to share a socket.
 * Connection pooling reduces request latency (if HTTP/2 isn’t available).
 * Transparent GZIP shrinks download sizes.
 * Response caching avoids the network completely for repeat requests.

OkHttp perseveres when the network is troublesome: it will silently recover from common connection

      Header(RESPONSE_STATUS, "304"),
      Header(RESPONSE_STATUS, "400"),
      Header(RESPONSE_STATUS, "404"),
      Header(RESPONSE_STATUS, "500"),
      Header("accept-charset", ""),
      Header("accept-encoding", "gzip, deflate"),
      Header("accept-language", ""),
      Header("accept-ranges", ""),
      Header("accept", ""),
      Header("access-control-allow-origin", ""),
      Header("age", ""),
      Header("allow", ""),

* Поддержка **WebSocket**.
* Фоновые задачи в том же процессе.
* События запуска и выключения.
* Тестовый клиент построен на HTTPX.
* **CORS**, GZip, статические файлы, потоковые ответы.
* Поддержка **сессий и cookie**.
* 100% покрытие тестами.
* 100% аннотирование типов в кодовой базе.

## Возможности Pydantic { #pydantic-features }

* **WebSocket**-Unterstützung.
* Hintergrundtasks im selben Prozess.
* Startup- und Shutdown-Events.
* Testclient basierend auf HTTPX.
* **CORS**, GZip, statische Dateien, Responses streamen.
* **Sitzungs- und Cookie**-Unterstützung.
* 100 % Testabdeckung.
* 100 % Typen annotierte Codebasis.

## Pydantic Merkmale { #pydantic-features }

* **WebSocket** support.
* In-process background tasks.
* Startup and shutdown events.
* Test client built on HTTPX.
* **CORS**, GZip, Static Files, Streaming responses.
* **Session and Cookie** support.
* 100% test coverage.
* 100% type annotated codebase.

## Pydantic features { #pydantic-features }

* **WebSocket** desteği.
* **GraphQL** desteği.
* Kullanım halinde arka plan işlevleri.
* Başlatma ve kapatma eventleri(startup and shutdown).
* Test sunucusu HTTPX üzerine kurulu.
* **CORS**, GZip, Static dosyalar, Streaming responseları.
* **Session and Cookie** desteği.
* 100% test kapsayıcılığı.
* 100% typeları belirtilmiş codebase.

## Pydantic özellikleri

import java.io.InputStreamReader;
import java.io.Reader;
import java.io.StringReader;
import java.util.Base64;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;

import org.apache.commons.lang3.StringUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.io.ReaderUtil;

* Soporte para **WebSocket**.
* Tareas en segundo plano en el mismo proceso.
* Eventos de inicio y apagado.
* Cliente de prueba basado en HTTPX.
* **CORS**, GZip, archivos estáticos, responses en streaming.
* Soporte para **Session y Cookie**.
* Cobertura de tests del 100%.
* code base completamente anotada con tipos.

## Funcionalidades de Pydantic { #pydantic-features }

   *
   * @since 28.0
   */
  public static final MediaType GEO_JSON = createConstant(APPLICATION_TYPE, "geo+json");

  public static final MediaType GZIP = createConstant(APPLICATION_TYPE, "x-gzip");

  /**
   * <a href="https://tools.ietf.org/html/draft-kelly-json-hal-08#section-3">JSON Hypertext
   * Application Language (HAL) documents</a>.
   *
   * @since 26.0
   */

* Suporte a **WebSocket**.
* Tarefas em processo background.
* Eventos na inicialização e encerramento.
* Cliente de testes construído sobre HTTPX.
* Respostas em **CORS**, GZip, Static Files, Streaming.
* Suporte a **Session e Cookie**.
* 100% de cobertura de testes.
* 100% do código utilizando anotações de tipo.

## Recursos do Pydantic { #pydantic-features }