<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Contracts\HttpClient;
use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
/**
* The interface of chunks returned by ResponseStreamInterface::current().
*
* When the chunk is first, last or timeout, the content MUST be empty.
* When an unchecked timeout or a network error occurs, a TransportExceptionInterface
* MUST be thrown by the destructor unless one was already thrown by another method.
*
* @author Nicolas Grekas <p@tchwork.com>
*/
interface ChunkInterface
{
/**
* Tells when the idle timeout has been reached.
*
* @throws TransportExceptionInterface on a network error
*/
public function isTimeout(): bool;
/**
* Tells when headers just arrived.
*
* @throws TransportExceptionInterface on a network error or when the idle timeout is reached
*/
public function isFirst(): bool;
/**
* Tells when the body just completed.
*
* @throws TransportExceptionInterface on a network error or when the idle timeout is reached
*/
public function isLast(): bool;
/**
* Returns a [status code, headers] tuple when a 1xx status code was just received.
*
* @throws TransportExceptionInterface on a network error or when the idle timeout is reached
*/
public function getInformationalStatus(): ?array;
/**
* Returns the content of the response chunk.
*
* @throws TransportExceptionInterface on a network error or when the idle timeout is reached
*/
public function getContent(): string;
/**
* Returns the offset of the chunk in the response body.
*/
public function getOffset(): int;
/**
* In case of error, returns the message that describes it.
*/
public function getError(): ?string;
}