Express js: The Ultimate Beginner's Guide to Learn Express js Step by Step 2020 (2st Edition)

Install Node.js
To obtain the latest version of Node.js:
If you are using Windows or Mac, head to the Node.js homepage. The site
will identify your system and its structure and select the appropriate
installer, just click on the Install button to download the installer and then
open it and continue with the steps.node-home-page-windows.thumb.
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If you're using Arch Linux, you'll find the latest version of Node.js under
Arch User Repositories (AUR). It can be installed with the following
command if you are using yaourt (similar for all programs that provide
access to AUR):
yaourt -S nodejs --noconfirm
You will be asked to enter the password to your user or the password to the
root user (if any). It can also be installed as described in the following
option.
If you are using another Linux distribution, you may find an outdated
version of Node.js in your distribution repositories, so we recommend that
you install Node.js through the Node.js version manager available on
GitHub, and install in the following way:

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Download the latest version of Node.js version manager via the Download
ZIP button on the project page on GitHub.
Unzip the downloaded file
Move the terminal to the volume path of the previous operation, for
example:
cd ~ / Downloads / n-master
Then execute the build order:
sudo make install
Install the latest stable version of Node.js using the n command provided by
Node.js Version Manager:
sudo n stable
You will be prompted to enter your user password or the root user
password, if any.
One of the benefits of the Node.js version manager is that you can quickly
switch between several versions of Node.js, sometimes you might want to
try out some of the features available in an unstable version (such as v0.11
that includes some ECMAScript 6 components) using the n latest
command, but you want Return to work on serious projects within a stable
version. So you can use the n stable command.

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Build the project
To start working cleanly, create a new folder somewhere in your device and
navigate to it using the terminal. Linux, Mac, and Windows):
cd / home / f / my-blog
In Windows, it might be similar to this:
cd C: \ Users \ f \ my-blog
We will use the init command provided by the Node Package Manager
(npm) to create a new project, open the terminal (Windows command line)
and type the following command:
npm init
The program will offer you a set of fields to fill in:
Name: The name of the project, npm suggests the name of the current
folder as the name of the project, and you can suggest that you leave the
field blank and press Enter.
Version: Project version (you can leave it as is).
Description: Description of the project.
Entry point: The main file from which the project starts, you can leave it as
is and create the index.js file later.
Test command: The command that npm should execute when it is asked to
perform tests on the project, ie when the npm test command is executed
within the main project folder. We'll leave it blank now.
Git repository: The git repository path that you will use to manage the
project, can be a http: // or git: // link and can be modified later.

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Keywords: project keywords separated by a comma (,), examples: blog,
mysql, expressjs, tutorial.
Author: Project writer.
License: Project license, any license such as GPLv2 or MIT can be used.
When finished, the program will show you the information you have
entered and ready to write to the package.json file, type yes to write the file.
The package.json file is the starting point for all Node.js projects, and is
used to identify and describe the project when it is published in the npm
package log. Clone the project and re-install the requirements for
modification at another time or by other persons.

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Install the project requirements
Our project will rely on the Express framework as evident, in addition to
MySQL databases for storing blogs and users and their comments, we will
also need some other requirements that we will install when we need them.
To install the latest version of express and save it as a requirement within
the package.json file, run the following command:
npm install express --save
Note: We will use version 4 in this series as the most recent version at the
time of writing. To make sure that version 4 is installed even after newer
versions are released, you can use the command:
npm install express@4.10.* --save
The installation of MySQL takes two steps: First, install the server that
provides the database, and performs differently for each operating system:
In Windows and Mac OS X, it can be installed by downloading the
appropriate installation software for the system version and architecture
from the official site and then following the installation steps as in installing
any other software.
In Arch Linux, I recommend using MariaDB, a completely identical
alternative to MySQL and replacing it without having to modify any part of
the code, and can be installed through Arch users' repositories with the
following command:
yaourt -S mariadb --noconfirm
In other Linux distributions such as Ubuntu and Fedora, MariaDB and
MySQL may be available in official repositories and can be installed using

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apt-get and yum.
The other step involves installing the MySQL client (or MySQL client), the