-// usr = (char*)req.context_get();
-usr = nullptr;
- AFB_REQ_NOTICE(req, "login user %s out", usr);
- event_logout.push(json_object_new_string(usr));
+ AFB_REQ_NOTICE(req, "login user %s out", (const char*)usr);
+ event_logout.push(json_object_new_string((const char*)usr));