How to kill all processes in NodeJS?

To kill all Node.js processes In Node.js you can use process.kill method, you can list all running processes, filter out the Node.js processes, and then use process.kill to terminate each identified process.

process.kill

The process.kill( pid[,signal] ) is an inbuilt technique in node.js that conveys a message to the cycle, pid (which is the interaction id) and sign are in the string design that is the sign to send.

Syntax:

process.kill(pid[, signal])

Boundaries:

This technique acknowledges two boundaries as referenced above and depicted underneath:

• pid: This boundary holds the interaction ID.
• signal: This boundary holds the string design.
• signal names: These are in string design.

1. SIGTERM
2. SIGINT
3. SIGHUP

Note: If no sign is indicated, then, at that point, as a matter of course 'SIGTERM' will be the sign.

• 'SIGTERM' and 'SIGINT' signals have default controllers on non-Windows stages that reset the terminal mode prior to leaving with code 128 + signal number. Assuming one of these signs has an audience introduced, its default conduct on node.js will be taken out.
• 'SIGHUP' is produced when the control center window is shut.

Return esteem:

The process.kill() strategy will toss a blunder on the off chance that the objective pid isn't found or doesn't exist. This technique returns boolean worth 0 assuming that pid exists and can be utilized as a test for the presence of the objective interaction. For window clients, this technique will likewise toss a mistake assuming pid is utilized to kill a gathering of interaction.

Beneath models show the utilization of the process.kill() property to kill processes in Node.js.

Example 1: This Node.js program demonstrates the process.kill method to handle and terminate a process. It sets up a handler for the SIGINT signal, prints a message when the signal is received, and schedules the process to exit after a short delay. The process is then terminated using its own PID with the SIGINT signal.

// index.js

// Printing process signal recognized
const displayInfo = () => {
    console.log('Receiving SIGINT signal in nodeJS.');
}

// Starting a cycle
process.on('SIGINT', displayInfo);

setTimeout(() => {
    console.log('Exiting.');
    process.exit(0);
}, 100);

// kill the cycle with pid and sign = 'SIGINT'
process.kill(process.pid, 'SIGINT');

Run the application:

node index.js

Output:

Example 2: The Node.js script above sets up an event listener for the SIGHUP signal, logs a message when the signal is received, and schedules the process to exit after a brief delay. Finally, it terminates the process using process.kill with its own PID and the SIGHUP signal.

// index.js

// Printing process signal recognized
const displayInfo = () => {
    console.log('Acknowledged SIGHUP signal in nodeJS.');
}

// Starting an interaction
process.on('SIGHUP', displayInfo);

setTimeout(() => {
    console.log('Exiting.');
    process.exit(0);
}, 100);

// kill the cycle with pid and sign = 'SIGHUP'
process.kill(process.pid, 'SIGHUP');

Run the application:

node index.js

Output: