Invalid $itemid conversion in core_files_get_files Web Service

Upload a couple of files to your private file area Enable "Mobile services" Plugins / Web Services / Services Create a new service in the same page, include in that service the function: core_files_get_files Create a Token for the same user you used to upload files to your private files area and for the service you created before: Click on Site administration ► Plugins ► Web services ► Manage tokens Click add, select user and service Next, you can do a CURL REST call simulating a WS client request: You need to change: The URL pointing to your Moodle site The wstoken value: The one you created The contextid: The context_user instance id for the user you created the token curl 'http://localhost/moodlebugs/webservice/rest/server.php?moodlewsrestformat=json' -H 'Pragma: no-cache' -H 'Origin: file:// ' -H 'Accept-Encoding: gzip,deflate,sdch' -H 'Accept-Language: es,en;q=0.8,de-DE;q=0.6,de;q=0.4' -H 'User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1798.0 Safari/537.36' -H 'Content-Type: application/x-www-form-urlencoded; charset=UTF-8' -H 'Accept: application/json, text/javascript, / ; q=0.01' -H 'Cache-Control: no-cache' -H 'Connection: keep-alive' --data 'contextid=5&component=user&filearea=private&itemid=0&filepath=&filename=&wsfunction=core_files_get_files&wstoken=1c64c9f95d565cab6e1285e75356ce35' --compressed You should receive a JSON string containing a list of the files in your private area