Function works locally but wont POST with axios, doesn't log any errors or exceptions

[jcpsantiago]

After trying multiple things, this answer did the trick Netlify Functions + axios Get not working in production - #2 by hrishikesh

Essentially adding returning the axios promise

            console.log("POSTing data to fulfillment");
            return axios(axiosconfig). // <- here
                .then(function (response) {
                    const res = response.data;
                    const res_str = JSON.stringify(res);
......