Out of memory with Guzzle

[Jellyfrog]

A bit surprising this will allocate a lot of memory with large json files, in this example a 181MB one (Found here; https://github.com/zemirco/sf-city-lots-json/blob/master/citylots.json)

<?php

require_once __DIR__ . '/vendor/autoload.php';

$client = new \GuzzleHttp\Client();
$response = $client->request('GET', 'http://127.0.0.1:8001/storage/citylots.json');

// Gets PHP stream resource from Guzzle stream
$phpStream = \GuzzleHttp\Psr7\StreamWrapper::getResource($response->getBody());

foreach (\JsonMachine\JsonMachine::fromStream($phpStream) as $key => $value) {
  //
}

% php memory.php 
PHP Fatal error:  Allowed memory size of 268435456 bytes exhausted (tried to allocate 20480 bytes) in /tmp/test/vendor/halaxa/json-machine/src/Parser.php on line 177
PHP Fatal error:  Allowed memory size of 268435456 bytes exhausted (tried to allocate 20480 bytes) in /tmp/test/vendor/guzzlehttp/promises/src/TaskQueue.php on line 24

I'm 100% guessing its due to json-machine is not registering as the sink for Guzzle
http://docs.guzzlephp.org/en/stable/request-options.html#sink

[Jellyfrog]

Actually, the same for HttpClient;

<?php

use JsonMachine\JsonMachine;
use Symfony\Component\HttpClient\HttpClient;
use Symfony\Contracts\HttpClient\ResponseStreamInterface;

require_once __DIR__ . '/vendor/autoload.php';

function httpClientChunks(ResponseStreamInterface $responseStream)
{
    foreach ($responseStream as $chunk) {
        yield $chunk->getContent();
    }
}

$client = HttpClient::create();
$response = $client->request('GET', 'http://127.0.0.1:8001/storage/citylots.json');
$jsonChunks = httpClientChunks($client->stream($response));
foreach (JsonMachine::fromIterable($jsonChunks) as $key => $value) {
    //
}

% php memory.php 
PHP Fatal error:  Allowed memory size of 268435456 bytes exhausted (tried to allocate 132120592 bytes) in /tmp/test/vendor/halaxa/json-machine/src/Parser.php on line 108
* Closing connection 0

[halaxa]

You want to iterate features subtree, not the main level, right? If so, see the doc

[Jellyfrog]

Oh, actually I didn't even look at the data, I just googled "large json" to find some test-data.
subtree seems to solve the issue.
Also, if changing to $response = $client->request('GET', 'http://127.0.0.1:8001/storage/citylots.json', ['stream' => true]);, then no temp-file is written to disk.