My first hook.io microservice

ip-save.js

module['exports'] = function saveExternalIp (hook) {
  var params = hook.params;
  var store = hook.datastore;
  
  var obj = { ip: params.ip, date: new Date() };
  store.set('externalip', obj, function(err, result) {
    if (err) {
      return res.end(err.message);
    }
    // See http://hook.io/docs#data for more information
    hook.res.write(JSON.stringify(obj));
    hook.res.end();
  });
};