How to keep the last_customer_id values in sync across stores about eriksen HOT 7 CLOSED

if (typeof customerId === 'undefined') {
    customerId = getNextCustomerIdOrWhateverIDK();
  }

const marshal = new Eriksen('accounts');

marshal.addModel('cassandra', require('lib/models/cassandra/accounts'));
marshal.addModel('aws', require('lib/models/aws/accounts'));

marshal.configure({ primary: 'cassandra', secondary: 'aws' });

const marshallSettings = {
  primary: 'cassandra',
  secondary: 'aws'
};

marshal.configure(marshallSettings);

// adding the hooks.
let secondaryModel = marshal.models.get(marshallSettings.secondary);

secondaryModel._hooks = {
  createAccount: function(callData) {
    var args = callData.args
      , result = callData.result;

    // instead of calling secondaryModel.createAccount, we can call insertAccount
    // which simply inserts the row. or we can call createAccount and check if the second
    // argument is defined.
    return secondaryModel.insertAccount(args[0], result);
  }
};

module.exports = marshal.proxy;

function proxify(method, options) {
  return function() {
    const args = (arguments.length === 1) ? [arguments[0]] : Array.apply(null, arguments);

    return callMethod(options.primaryModel, method, args).then((result) => {
      let methodHook
        , methodCall;
      
      if (!options.secondary || !_.isFunction(options.secondaryModel[method])) {
        return result;
      }

      // check to see if there's a hook defined
      methodHook = _.get(options.secondaryModel, `_hooks.${method}`);
      if (methodHook) {
        // we can pass in the args and the result of the first model's call to the hook.
        methodCall = methodHook({ args: args, result: result });
      } else {
        methodCall = callMethod(options.secondaryModel, method, args);
      }

      // don't return here and swallow errors so that secondary call is non-blocking
      methodCall.catch((err) => {
        options.logger.error(`[Eriksen] Captured error on secondary model: ${options.secondary}#${method}`, err);
      });

      return result;
    });
  };
}