querymiddleware.js

function queryMiddleware() {
  return next => action => {
    if (action && action[SIMPLE] !== undefined && action[SIMPLE].query) {
      const request = action[SIMPLE];
      const query = qs.stringify(request.query, {
        arrayFormat: 'brackets',
        encode: false
      });
      request.endpoint = [request.endpoint.replace(/\?*/, ''), query].join('?');
      delete request.query;

      return next({ [SIMPLE]: request });
    }

    return next(action);
  };
}