Catching exceptions from Guzzle

Question

I m trying to catch exceptions from a set of tests I m running on an API I m developing and I m using Guzzle to consume the API methods  I ve got the tests wrapped in a try catch block but it is still throwing unhandled exception errors  Adding an event listener as described in their docs doesn t seem to do anything  I need to be able to retrieve the responses that have HTTP codes of 500  401  400  in fact anything that isn t 200 as the system will set the most appropriate code based on the result of the call if it didn t work   Current code example  foreach  tests as  test             client   new Client  api url            client- gt getEventDispatcher  - gt addListener  request error   function Event  event                         if   event  response  - gt getStatusCode      401                     newResponse   new Response  event  response  - gt getStatusCode                      event  response      newResponse                   event- gt stopPropagation                                                   try                 client- gt setDefaultOption  query    query string                request    client- gt get  api version    test  method    array    isset  test  query     test  query   array                    Do something with Guzzle               response    request- gt send                   displayTest  request   response                     catch  Guzzle Http Exception ClientErrorResponseException  e                  req    e- gt getRequest                 resp   e- gt getResponse                displayTest  req  resp                     catch  Guzzle Http Exception ServerErrorResponseException  e                  req    e- gt getRequest                 resp   e- gt getResponse                displayTest  req  resp                     catch  Guzzle Http Exception BadResponseException  e                  req    e- gt getRequest                 resp   e- gt getResponse                displayTest  req  resp                     catch  Exception  e               echo  AGH                       unset  client            client null           Even with the specific catch block for the thrown exception type I am still getting back   Fatal error  Uncaught exception  Guzzle Http Exception ClientErrorResponseException  with message  Client error response  status code  401  reason phrase  Unauthorized  url    and all execution on the page stops  as you d expect  The addition of the BadResponseException catch allowed me to catch 404s correctly  but this doesn t seem to work for 500 or 401 responses  Can anyone suggest where I am going wrong please

User · Answer

To catch Guzzle errors you can do something like this:

try {
    $response = $client->get('/not_found.xml')->send();
} catch (Guzzle\Http\Exception\BadResponseException $e) {
    echo 'Uh oh! ' . $e->getMessage();
}

... but, to be able to "log" or "resend" your request try something like this:

// Add custom error handling to any request created by this client
$client->getEventDispatcher()->addListener(
    'request.error', 
    function(Event $event) {

        //write log here ...

        if ($event['response']->getStatusCode() == 401) {

            // create new token and resend your request...
            $newRequest = $event['request']->clone();
            $newRequest->setHeader('X-Auth-Header', MyApplication::getNewAuthToken());
            $newResponse = $newRequest->send();

            // Set the response object of the request without firing more events
            $event['response'] = $newResponse;

            // You can also change the response and fire the normal chain of
            // events by calling $event['request']->setResponse($newResponse);

            // Stop other events from firing when you override 401 responses
            $event->stopPropagation();
        }

});

... or if you want to "stop event propagation" you can overridde event listener (with a higher priority than -255) and simply stop event propagation.

$client->getEventDispatcher()->addListener('request.error', function(Event $event) {
if ($event['response']->getStatusCode() != 200) {
        // Stop other events from firing when you get stytus-code != 200
        $event->stopPropagation();
    }
});

thats a good idea to prevent guzzle errors like:

request.CRITICAL: Uncaught PHP Exception Guzzle\Http\Exception\ClientErrorResponseException: "Client error response

in your application.

User · Answer

If the Exception is being thrown in that try block then at worst case scenario Exception should be catching anything uncaught   Consider that the first part of the test is throwing the Exception and wrap that in the try block as well

User · Answer

In my case I was throwing Exception on a namespaced file  so php tried to catch My Namespace Exception therefore not catching any exceptions at all   Worth checking if catch  Exception  e  is finding the right Exception class    Just try catch   Exception  e   with that   there  and see if it works

User · Answer

You need to add a extra parameter with http errors    false   request    client- gt get  url    http errors    gt  false

User · Answer

I was catching GuzzleHttp Exception BadResponseException as  dado is suggesting  But one day I got GuzzleHttp Exception ConnectException when DNS for domain wasn t available  So my suggestion is - catch GuzzleHttp Exception ConnectException to be safe about DNS errors as well

User · Answer

I want to update the answer for exception handling in Psr-7 Guzzle  Guzzle7 and HTTPClient expressive  minimal API around the Guzzle HTTP client provided by laravel   Guzzle7  same works for Guzzle 6 as well  Using RequestException  RequestException catches any exception that can be thrown while transferring requests  try     client   new  GuzzleHttp Client   headers    gt    Authorization    gt   Bearer      token           guzzleResponse    client- gt get   foobar         or can use       guzzleResponse    client- gt request  GET     foobar       if   guzzleResponse- gt getStatusCode      200              response   json decode  guzzleResponse- gt getBody   true              perform your action with  response           catch  GuzzleHttp Exception RequestException  e         you can catch here 400 response errors and 500 response errors       You can either use logs here use Illuminate Support Facades Log      error  error      e- gt getMessage        error  request      e- gt getRequest       if  e- gt hasResponse            if   e- gt getResponse  - gt getStatusCode       400                error  response      e- gt getResponse                      Log  error  Error occurred in get request      error    gt   error     catch Exception  e        other errors     Psr7 Guzzle use GuzzleHttp Psr7  use GuzzleHttp Exception RequestException   try        client- gt request  GET     foo      catch  RequestException  e         error  error      e- gt getMessage         error  request     Psr7 Message  toString  e- gt getRequest         if   e- gt hasResponse               error  response     Psr7 Message  toString  e- gt getResponse               Log  error  Error occurred in get request      error    gt   error       For HTTPClient use Illuminate Support Facades Http  try       response   Http  get  http   api foo com        if  response- gt successful              reply    response- gt json              if  response- gt failed             if  response- gt clientError                   catch all 400 exceptions             Log  debug  client Error occurred in get request                  response- gt throw                      if  response- gt serverError                   catch all 500 exceptions             Log  debug  server Error occurred in get request                  response- gt throw                               catch Exception  e          catch the exception here

User · Answer

Depending on your project  disabling exceptions for guzzle might be necessary  Sometimes coding rules disallow exceptions for flow control  You can disable exceptions for Guzzle 3 like this    client   new  Guzzle Http Client  httpBase  array     request options    gt  array        exceptions    gt  false             This does not disable curl exceptions for something like timeouts  but now you can get every status code easily    request    client- gt get  uri    response    request- gt send     statuscode    response- gt getStatusCode      To check  if you got a valid code  you can use something like this   if   statuscode  gt  300         Do some error handling         or better handle all expected codes   if  200      statuscode         Do something   elseif  304      statuscode         Nothing to do   elseif  404      statuscode         Clean up DB or something like this   else     throw new MyException  Invalid response from api           For Guzzle 5 3   client   new  GuzzleHttp Client   defaults    gt     exceptions    gt  false         Thanks to  mika  For Guzzle 6   client   new  GuzzleHttp Client   http errors    gt  false

User · Answer

Old question  but Guzzle adds the response within the exception object   So a simple try-catch on GuzzleHttp Exception ClientException and then using getResponse on that exception to see what 400-level error and continuing from there

[php] Catching exceptions from Guzzle

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