how to handle error 500 when requesting a distant server with guzzle? - error-handling

Question

i am requesting a webservice using :
use GuzzleHttp\Client;
use GuzzleHttp\Exception\ConnectException;
try {
$client = new Client();
$response = $client->request('GET', $url); //it crashes at this line
$content = json_decode($response->getBody(), true);
}
catch (ConnectException $e) {
\Drupal::logger('amu_hal')->error('incorrect_url'.$url);
}
today the distant server return a error 500.
How can i modify my code not to crash my site when it happens?

Answer 1

I assume that by distant server you mean a server that takes a long time to connect. You can specify a timeout for the request.
Or perhaps the server returned error 500 and it fails during json_decode? You can check the status code returned by the request.
Or even perhaps the code is failing the line that you indicate but the exception ConnectException is not being caught? Try using Exception as a catch-all to debug this situation.
Instead of using Guzzle directly, I recommend that you use the Drupal wrapper (which uses Guzzle under the hood).
$client = Drupal::httpClient();
$request = $client->get($uri, ['connect_timeout' => 5]);
if ($request->getStatusCode() === 200) {
echo 'Connection Success';
} else {
echo sprintf('Error %d occurred', $request->getStatusCode());
}