Stream::getContents() unexpected behavior

[slavcodev]

Hello, I hit one problem when use instance of GuzzleHttp\Psr7\Stream.

echo $response->getBody()->getContents();

method returns me empty string, although the logger show me correct response.

The problem was that the logger use (string) $response->getBody() and we seek to the end of stream.

Should we seek back before returns content?

public function getContents()
{
    $this->rewind();
    $contents = stream_get_contents($this->stream);

    if ($contents === false) {
        throw new \RuntimeException('Unable to read stream contents');
    }

    return $contents;
}

Seems __toString() can call getContent().

[mtdowling]

If you need to seek and store the entire stream in memory then cast the stream to a string using (string)

On Sep 14, 2015, at 8:49 AM, Veaceslav Medvedev notifications@github.com wrote:

Hello, I hit one problem when use instance of GuzzleHttp\Psr7\Stream.

echo $response->getBody()->getContents();
method returns me empty string, although the logger show me correct response.

The problem was that the logger use (string) $response->getBody() and we seek to the end of stream.

Should we seek back before returns content?

public function getContents()
{
$this->rewind();
$contents = stream_get_contents($this->stream);

if ($contents === false) {
    throw new \RuntimeException('Unable to read stream contents');
}

return $contents;

}
Seems __toString() can call getContent().

—
Reply to this email directly or view it on GitHub.

[slavcodev]

Well, I think getContents meaning all body contents, not a part. To read body partial we have read($length). Or I''m wrong?

[mtdowling]

See https://github.com/php-fig/http-message/blob/master/src/StreamInterface.php#L143

[kenorb]

The $response->getBody() should be enough, however when calling it for the first time, you've to rewind it if you're planning to access content for the second time.

For example, I have called $response->getBody(), then when calling getContents();, the result was always empty. Doing $response->rewind(); in this case helped.

Related: Guzzlehttp - How get the body of a response from Guzzle 6?

$contents = (string) $response->getBody();

vs

$contents = $response->getBody()->getContents();

The difference between the two approaches is that getContents returns the remaining contents, so that a second call returns nothing unless you seek the position of the stream with rewind or seek .