Handling 'ECONNREFUSED' Error in Node.js HTTP Requests

The 'ECONNREFUSED' error in Node.js occurs when your application tries to establish a connection to a server that is not accepting requests.

This error is common when making HTTP or HTTPS requests using modules like http, https, or axios.

The error message typically appears as: Error: connect ECONNREFUSED 127.0.0.1:3000.

This can happen for various reasons, including the target server being offline, incorrect port numbers, or firewall restrictions.

To resolve this issue, verify that the target server is running and accessible on the specified port.

Use tools like ping, curl, or telnet to test the server's availability.

Double-check the URL, hostname, and port number in your request to ensure they are correct.

If you are running a local server, make sure it is properly started and listening on the specified port.

In cases where the server is running on a different machine, ensure that network configurations and firewall settings allow incoming connections on the target port.

Using retries or fallbacks in your code can also handle temporary connection issues gracefully.

By troubleshooting these aspects, you can fix 'ECONNREFUSED' errors and establish reliable HTTP connections in your Node.js applications.