ADD: async parameter to execution request

Author: neo-garaix

wps/controllers/processes_exec_rest.classic.php

@@ -56,7 +56,8 @@ public function post(): object
                     'processes/'.
                     $processID.
                     '/execution'.
-                    '?map='.$project->getRelativeQgisPath();
+                    '?mode=async'.
+                    '&map='.$project->getRelativeQgisPath();
                 $response = RequestHandler::curlRequestPOST($url, $data);
             } else {
                 $response = Error::setJSONError($rep, '400', 'Process id not found.');

wps/lib/RequestHandler.php

@@ -52,6 +52,7 @@ public static function curlRequestPOST(string $url, string $data): string
         curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
         curl_setopt($ch, CURLOPT_HTTPHEADER, array(
             'Accept: application/json',
+            'Prefer: respond-async',
         ));
 
         $response = curl_exec($ch);