fallback-port

get an available port and preventing eaddrinuse error.

If multiple applications running same port then you will get the below error (Error: listen EADDRINUSE).

This module will give you an available port and kill other processes.

This module covered Mac OSX and Windows.

Install

$ npm install fallback-port

API

getPid

Finding the PID from default port.

return pid number or null.

getPort

Tries return a random available port if the requested port is taken

kill

Find and kill process locking port.

Example

 
var port = 8080;
 
var fallbackPort = new FallbackPort(8080);
 
//return pid number or null
var pid = fallbackPort.getPid();
 
//return available port
var otherPort = fallbackPort.getPort();
 
if(otherPort != port){
    console.log( `${port} is taken` )
}
 
//kill process
fallbackPort.kill();