nodejs shut down and restart

Node.js is a very popular server-side development language running on the JavaScript platform. Its flexibility, scalability, and efficiency are praised by developers around the world. However, like other software, Node.js sometimes glitches or requires a restart. In this article, we’ll cover how to shut down and restart Node.js to ensure it remains efficient and reliable at all times.

1. Close Node.js

Before closing Node.js, you need to stop the running application first. This can be achieved by typing Ctrl C. This will send a signal to the Node.js process telling it to stop running the application. If your application has any other processes or threads attached to it, they need to be stopped.

Use special key combinations or commands to stop the Node.js process:

Windows systems: Unfortunately, the method of stopping the Node.js process on Windows is usually more complicated than on other operating systems. . You can try opening task manager and killing all Node.js processes or use cmd command to stop them.

MacOS or Linux system: On MacOS or Linux system, you can open the terminal and enter the killall node or pkill node command and then press the Enter key. This will stop all running Node.js processes.

2. Restart Node.js

You can restart Node.js at any time as long as your application requires it. This can be achieved by one of the following methods:

1. Restarting the Node.js process via the command line

You can restart Node.js programmatically using the following command Application:

const child_process = require('child_process');
child_process.fork(process.argv[1], process.argv.slice(2), {
  execArgv: process.execArgv
});
process.exit();

This creates a child process for Node.js and exits the parent process. The child process will inherit all parameters and flags in the same way as the parent process, and use execArgv to restart Node.js.

2. Using Nodemon

Nodemon is a commonly used auto-restart solution that will automatically restart a Node.js application when a file change is detected. You can install it using npm install nodemon in the terminal. Once it is installed, you can use the following command to start Node.js:

nodemon app.js

3. Manage processes with PM2

PM2 is a process manager that can be used in Start multiple Node.js processes and manage them with a single command. It also provides detailed information about each process such as CPU usage, memory usage, etc. You can start Node.js applications in PM2 using the following command:

pm2 start app.js

PM2 also allows you to automatically restart Node.js processes when they exit, ensuring that you are always productive. You can activate automatic restart using the following command:

pm2 start app.js --watch --ignore-watch="node_modules"

Summary

No matter what problem you are facing, shutting down or restarting Node.js is an effective way to solve the problem. If you follow the instructions in this article, you should be able to reduce the problems you encounter in your operations and ensure you're always productive. If you encounter any problems, feel free to consult the community and online forums to see how other Node.js developers solved the problem.

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