How to handle exception in Guzzle Async request? - php

Question

I have problem when i try download many images using Guzzle. Some of them probably invalid, so when i made AsyncRequest i cant handle exception of every images.
I tried to make validation method, which must work with downloaded files, but it doesnt work on-time.
$requests = function () use ($client, $imagesMetaData) {
foreach ($imagesMetaData as $index => $image) {
yield $index => function () use ($client, $image) {
try {
$resource = fopen($image['savePath'], 'w+b');
if (!$resource) {
// do smth
}
$opts = ['sink' => $resource];
$result = $client->requestAsync('GET', $image['downloadUri'], $opts);
return ($result);
} catch (\Exception $e) {
$image['writeLog'](
// do smth
);
return new Response(404);
}
};
}
};
Pool::batch($client, $requests(), [
'concurrency' => 5,
'fulfilled' => function (Response $response, $index) use ($me, $imagesMetaData, &$fulfilled, &$rejected) {
$image = $imagesMetaData[$index];
foreach ($imagesMetaData as $image) {
if ($me->validateDownloadedImage($image)) {
$fulfilled[] = $image;
} else {
$rejected[] = $image;
}
}
},
'rejected' => function ($reason, $index) use ($me, $imagesMetaData, &$rejected) {
$image = $imagesMetaData[$index];
$me->rejectImage($image, $reason);
$rejected[] = $image;
}
]);
return [$fulfilled, $rejected];
If files images are fine - everything work as expected, but if one of them failed - i have next error
Catalog import exception of type RuntimeException thrown in file /var/www/my.site/localhost/core/libraries/guzzlehttp/psr7/src/Stream.php at line 250. Unable to write to stream.
https://i.imgur.com/SBLpni5.png
If someone know this, please help.

Answer 1

I fixed this with opening stream:
$stream = stream_for($resource);
and pass this stream to 'sink'
:
'sink' => $stream
final code looks like this:
$requests = function () use ($client, $imagesMetaData) {
foreach ($imagesMetaData as $index => $image) {
yield $index => function () use ($client, $image) {
try {
$resource = fopen($image['savePath'], 'w+b');
$stream = stream_for($resource);
if (!$resource) {
// do smth
}
$opts = ['sink' => $stream];
$result = $client->requestAsync('GET', $image['downloadUri'], $opts);
return ($result);
} catch (\Exception $e) {
$image['writeLog'](
// do smth
);
return new Response(404);
}
};
}
};
Pool::batch($client, $requests(), [
'concurrency' => 5,
'fulfilled' => function (Response $response, $index) use ($me, $imagesMetaData, &$fulfilled, &$rejected) {
$image = $imagesMetaData[$index];
foreach ($imagesMetaData as $image) {
if ($me->validateDownloadedImage($image)) {
$fulfilled[] = $image;
} else {
$rejected[] = $image;
}
}
},
'rejected' => function ($reason, $index) use ($me, $imagesMetaData, &$rejected) {
$image = $imagesMetaData[$index];
$me->rejectImage($image, $reason);
$rejected[] = $image;
}
]);
return [$fulfilled, $rejected];