In this tutorial, we will show you how to install Yarn on CentOS 7. For those of you who didn’t know, Yarn is an advanced package management tool for Javascript applications mostly used for Node.js applications. Yarn is compatible with npm used for installing, configuring, updating, and removing npm packages. It helps to solve problems with npm like network connectivity issues, speeding up the installation process, etc.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of Yarn on a CentOS 7 server.

Prerequisites

• A server running one of the following operating systems: CentOS 7.
• It’s recommended that you use a fresh OS install to prevent any potential issues.
• SSH access to the server (or just open Terminal if you’re on a desktop).
• A non-root sudo user or access to the root user. We recommend acting as a non-root sudo user, however, as you can harm your system if you’re not careful when acting as the root.

Install Yarn on CentOS 7

Step 1. First, let’s start by ensuring your system is up-to-date.

yum clean all
yum -y update

Step 2. Installing Yarn on CentOS.

To install Yarn, you must first install Node.js on your server, enable the Nodesource repository with the following curl command:

curl --silent --location https://rpm.nodesource.com/setup_8.x | sudo bash -

Install the Node.js package by typing:

sudo yum install nodejs

Next, execute the commands below to activate the repository for Yarn and import its GPG key:

curl --silent --location https://dl.yarnpkg.com/rpm/yarn.repo | sudo tee /etc/yum.repos.d/yarn.repo
sudo rpm --import https://dl.yarnpkg.com/rpm/pubkey.gpg

Once the repository is added, you can install Yarn, by running:

sudo yum install yarn

You can now issue the following command to confirm the installation:

yarn --version

Step 3. Using Yarn.

Create a new Yarn project use yarn init:

yarn init my_yarn_ramona

Adding dependency:

yarn add [package_name]

Upgrading dependency:

yarn upgrade [package_name]
yarn upgrade [package_name]@[version_or_tag]

Installing all project dependencies:

yarn

Congratulations! You have successfully installed Yarn. Thanks for using this tutorial for installing Yarn on CentOS 7 system. For additional help or useful information, we recommend you to check the official Yarn website.