使用 node-firebird (Firebird 3.0.4) 连接到 Firebird 数据库的问题

Question

我试图使用 node-firebird package 连接到 Firebird 数据库。 我写了以下代码：

const Firebird = require('node-firebird');

const options = {
  host: '127.0.0.1',
  port: 3050,
  database: '/database.fdb',
  user: 'SYSDBA',
  password: 'masterkey'
}

module.exports = (req, res) => {
  if (req.url == '/favicon.ico') return res.status(404).end();

  Firebird.attach(options, function(err, db) {

    if (err)
      throw err;
      db.detach();
    console.log('Database was attached');

    res.send(`Attaching a database`);
  });
}

我在终端中得到以下响应：

    Serving function...
    Function: reportsComp
    URL: http://localhost:8080/
    Error: Connection is closed.
        at exports.Connection.Connection._queueEvent 
(/Users/aika/functions/node_modules/node-firebird/lib/index.js:3125:22)
        at exports.Connection.Connection.connect 
(/Users/aika/functions/node_modules/node-firebird/lib/index.js:3160:10)
        at /Users/aika/functions/node_modules/node-firebird/lib/index.js:1587:13
        at Socket.<anonymous> (/Users/aika/functions/node_modules/node-firebird/lib/index.js:2836:17)
        at Socket.emit (events.js:210:5)
        at Socket.EventEmitter.emit (domain.js:498:23)
        at TCP.<anonymous> (net.js:659:12)

你能帮我解决关闭连接的问题吗？