Installing Node.js

We'll install Node.js using the following steps:

1. To install Node.js, add a Node.js yum repository for the stable version 10.x:

[root@ip-172-31-95-213 src]# yum install wget
Please enter 'y' for yes when asked 
[root@ip-172-31-95-213 src]# yum install -y gcc-c++ make
[root@ip-172-31-95-213 src]# curl -sL https://rpm.nodesource.com/setup_10.x | sudo -E bash -

The Yum repository is provided by the Node.js official website. After adding the Yum repository, we can start installing Node.js.

2. Install Node.js on CentOS with yum:

[root@ip-172-31-95-213 src]# yum install nodejs
Please enter 'y' for yes when asked 

When Node.js is installed, NPM will be included as well as many other dependent packages on your system.

3. Check the Node.js and NPM version to make sure that our installation has been successful:

[root@ip-172-31-95-213 src]# node -v
v10.15.3
[root@ip-172-31-95-213 src]# npm -v
6.4.1
[root@ip-172-31-95-213 src]# mkdir node-api-postgres
[root@ip-172...