Handle more error responses

In some cases, the JSON error response is wrapped in
'web_service_result'.

Author: danmichaelo

CHANGELOG.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Fixed
 
 - Set MMS id on Bib object when initiated from SRU response.
+- Handle more error responses.
 
 ## [0.7.2] - 2018-11-09
 

src/Client.php

@@ -483,6 +483,9 @@ protected function parseClientError(HttpException $exception)
         switch ($contentType) {
             case 'application/json':
                 $res = json_decode($responseBody, true);
+                if (isset($res['web_service_result'])) {
+                    $res = $res['web_service_result'];
+                }
                 $err = $res['errorList']['error'][0];
                 $message = $err['errorMessage'];
                 $code = $err['errorCode'];