How To Run Node Js
Node.js is an open source JavaScript runtime environment for easily building server-side and networking applications. Node.js applications can be run at the. Visual Studio Code has support for the JavaScript and TypeScript languages out-of-the-box as well as Node.js debugging. However, to run a Node.js application.
Is just JavaScript, right? So it should be really easy to run Node.js applications on Windows—just download and install Node, npm install, and go, right?Well, for some applications, that’s true. But if you need to compile extensions, you’ll need a few more things. And, of course, with Node.js itself being constantly under development, you’ll want to lock down your development to a version your code can use. In this post, I’ll talk you through how we get our Windows command-line environments set up for the Node.js (actually, ) application my team is developing.First Things FirstNo one wants to waste time hunting down downloads for a development environment. Instead, and you’ll get a nice, clean way to add the packages you’ll need without a single web search.Once you’ve got Scoop installed, it’s time to add some packages.
IntroductionNode.js is an open source JavaScript runtime environment for easily building server-side and networking applications. The platform runs on Linux, OS X, FreeBSD, and Windows. Node.js applications can be run at the command line, but we'll focus on running them as a service, so that they will automatically restart on reboot or failure, and can safely be used in a production environment.In this tutorial, we will cover setting up a production-ready Node.js environment on a single Ubuntu 16.04 server. This server will run a Node.js application managed by PM2, and provide users with secure access to the application through an Nginx reverse proxy.
The Nginx server will offer HTTPS, using a free certificate provided by Let's Encrypt. PrerequisitesThis guide assumes that you have the following:. An Ubuntu 16.04 server, configured with a non-root user with sudo privileges, as described in the.
A domain name pointed at your server's public IP, as per. This tutorial will use example.com throughout. Nginx installed, covered in. Nginx configured with SSL using Let's Encrypt certificates.
How To Run Node Js Debian
Will walk you through the process.When you've completed the prerequisites you will have a server serving the default Nginx placeholder page at example.com/.Let's get started by installing the Node.js runtime on your server. Install Node.jsWe will install the latest LTS release of Node.js, using the package archives.First, you need to install the NodeSource PPA in order to get access to its contents. Make sure you're in your home directory, and use curl to retrieve the installation script for the Node.js 6.x archives:. cd.
curl -sL -o nodesourcesetup.shYou can inspect the contents of this script with nano (or your preferred text editor):. nano nodesourcesetup.shAnd run the script under sudo:. sudo bash nodesourcesetup.shThe PPA will be added to your configuration and your local package cache will be updated automatically. After running the setup script from nodesource, you can install the Node.js package in the same way that you did above:. sudo apt-get install nodejsThe nodejs package contains the nodejs binary as well as npm, so you don't need to install npm separately. However, in order for some npm packages to work (such as those that require compiling code from source), you will need to install the build-essential package:. sudo apt-get install build-essentialThe Node.js runtime is now installed, and ready to run an application!
Let's write a Node.js application.Note: When installing from the NodeSource PPA, the Node.js executable is called nodejs, rather than node.Create Node.js ApplicationWe will write a Hello World application that simply returns 'Hello World' to any HTTP requests. This is a sample application that will help you get your Node.js set up, which you can replace with your own application-just make sure that you modify your application to listen on the appropriate IP addresses and ports. Hello World CodeFirst, create and open your Node.js application for editing.
For this tutorial, we will use nano to edit a sample application called hello.js:. cd. nano hello.jsInsert the following code into the file.
If you want to, you may replace the highlighted port, 8080, in both locations (be sure to use a non-admin port, i.e. 1024 or greater). OutputHello WorldIf you do not see the proper output, make sure that your Node.js application is running, and configured to listen on the proper address and port.Once you're sure it's working, kill the application (if you haven't already) by pressing Ctrl+C. Install PM2Now we will install PM2, which is a process manager for Node.js applications. PM2 provides an easy way to manage and daemonize applications (run them in the background as a service).We will use npm, a package manager for Node modules that installs with Node.js, to install PM2 on our server.
Use this command to install PM2:. sudo npm install -g pm2The -g option tells npm to install the module globally, so that it's available system-wide. Manage Application with PM2PM2 is simple and easy to use. We will cover a few basic uses of PM2. Start ApplicationThe first thing you will want to do is use the pm2 start command to run your application, hello.js, in the background:. pm2 start hello.jsThis also adds your application to PM2's process list, which is outputted every time you start an application. OutputPM2 Init System found: systemdPM2 You have to run this command as root.
Execute the following command:sudo env PATH=$PATH:/usr/bin /usr/lib/nodemodules/pm2/bin/pm2 startup systemd -u sammy -hp /home/sammyRun the command that was generated (similar to the highlighted output above, but with your username instead of sammy) to set PM2 up to start on boot (use the command from your own output):. sudo env PATH=$PATH:/usr/bin /usr/lib/nodemodules/pm2/bin/pm2 startup systemd -u sammy -hp /home/ sammyThis will create a systemd unit which runs pm2 for your user on boot.
This pm2 instance, in turn, runs hello.js. You can check the status of the systemd unit with systemctl:. systemctl status pm2- sammyFor a detailed overview of systemd, see.
Other PM2 Usage (Optional)PM2 provides many subcommands that allow you to manage or look up information about your applications.