Fix issue with correct content type

Signed-off-by: Oleksandr Mykhailenko <[email protected]>

Author: oleksandr-mykhailenko

src/Mailjet/Client.php

@@ -298,8 +298,13 @@ private function _call(string $method, string $resource, string $action, array $
 
         $url = $this->buildURL($resource, $action, (string) $args['id'], $args['actionid']);
 
-        $contentType = ('csvdata/text:plain' === $action || 'csverror/text:csv' === $action) ? 'text/plain' : 'application/json';
-        
+        $contentType = 'application/json';
+        if ('csvdata/text:plain' === $action) {
+            $contentType = 'text/plain';
+        } else if ('csverror/text:csv' === $action) {
+            $contentType = 'text/csv';
+        }
+
         $isBasicAuth = $this->isBasicAuthentication($this->apikey, $this->apisecret);
         $auth = $isBasicAuth ? [$this->apikey, $this->apisecret] : [$this->apitoken];
 

src/Mailjet/Request.php

@@ -138,10 +138,7 @@ public function call($call)
 
         if ($call) {
             try {
-                $response = \call_user_func_array(
-                    [$this, strtolower($this->method)],
-                    [$this->url, $payload]
-                );
+                $response = call_user_func([$this, strtolower($this->method)], $this->url, $payload);
             } catch (ClientException $e) {
                 $response = $e->getResponse();
             } catch (ServerException $e) {