php - Call to undefined method GuzzleHttp\Psr7\Response::isSuccessful() -

so have installed guzzle library version 6 according teamup calendar documentation. however, when try run code below

fatal error: call undefined method guzzlehttp\psr7\response::issuccessful()   

code:

<?php include 'vendor/autoload.php';  define('api_key','****ww9d5ea2b0540ba1e02c08100b0e5**');  $client = new guzzlehttp\client(['headers' => ['teamup-token' => api_key]]); $res = $client->get('https://api.teamup.com/ks************/events?startdate=2016-08-21&enddate=2016-08-25');  if ($res->issuccessful()) {     echo $res->getbody();     // {"event":{ ... }} } 

shouldn't contained in library? anyone?

yes, there no method issuccessful. default guzzle throw exception if server return error

http://docs.guzzlephp.org/en/latest/quickstart.html

a guzzlehttp\exception\serverexception thrown 500 level errors if http_errors request option set true.

a guzzlehttp\exception\clientexception thrown 400 level errors if http_errors request option set true.

in event of networking error (connection timeout, dns errors, etc.), guzzlehttp\exception\requestexception thrown.

anyway, can check status code of response using

$res->getstatuscode();