How to Fix the \'ECONNREFUSED\' Error When Connecting to MySQL from Node.js?

Troubleshooting ECONNREFUSED Error in Node.js MySQL Connection

When attempting to establish a database connection using Node.js and MySQL, you may encounter the "connect ECONNREFUSED" error, indicating a connection issue. Here are some potential solutions:

1. Enable MySQL Networking:

Check the MySQL configuration file (my.cnf) and ensure that "skip-networking" is commented out. This parameter disables network connections, which could be the cause of the error.

2. Set MySQL Socket:

Explicitly specify the MySQL socket by setting the "_socket" property in the client configuration. This ensures that the connection is established via the Unix socket instead of the TCP/IP interface.

<code class="js">var client = mysql.createClient({
  user: uuuu,
  password: pppp,
  host: '127.0.0.1',
  port: '3306',
  _socket: '/var/run/mysqld/mysqld.sock',
});</code>

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