How to Build a Web App: A beginner's guide (2020) Ultimate Guide

Reading Time: 6 minutes | Date: January 19, 2020 | Posted by: Admin | Category: Web
How to Build a Web App: A beginner's guide (2020) Ultimate Guide


WEB means?

The World Wide Web (WWW) is a combination of all resources and users on the Internet that are using the Hypertext Transfer Protocol (HTTP). The Web is the common name for the World Wide Web, a subset of the Internet, consisting of the pages that can be accessed.

Define Web Applications

A web application or web app is a client-server computer program that the client runs in a web browser.


A web application is a computer program that utilizes web browsers and web technology to perform tasks over the Internet.

The application can be as simple as a message board or a contact form on a website or as complex as a word processor or a multi-player mobile gaming app that you download to your phone. Web application architecture defines the interactions between applications, middleware systems and databases to ensure multiple applications can work together. When a user types in a URL and taps “Go,” the browser will find the Internet-facing computer the website lives on and requests that particular page. The server then responds by sending files over to the browser. After that action, the browser executes those files to show the requested page to the user. Now, the user gets to interact with the website. With client-side code, languages used include:

  • CSS
  • Javascript
  • HTML

Web-based app:

A web-based application is any application that uses a website as the front-end, allowing users to access the application from any device. Companies such as Google have

championed the web-based application industry, using the Chrome browser platform to facilitate the creation of open-source web application development which can be utilized

by companies looking to target these digital users.

Web applications include online forms, shopping carts, word processors, spreadsheets, video and photo editing, file conversion, file scanning, and email programs such as Gmail, Yahoo, and AOL. Popular applications include Google Apps and Microsoft 365.

How to build an app from scratch?


Know your purpose to make this web app. You have to check market validation and your skillset.

How do I make a web?

  1. Sign up for a free website builder. Choose what kind of website you want to create.
  2. Customize a template or get a website made for you.
  3. Drag and drop 100s of design features.
  4. Get ready for business.
  5. Publish your website and go live.


Make prototypes of your website.  There are many tools to make designs or your web app. Design your database and make ERD. Web design encompasses many different skills and disciplines in the production and maintenance of websites. The different areas of web design include web graphic design; interface design; authoring, including standardized code and proprietary software; user experience design; and search engine optimization.


How To Develop A Web Application?web application development process

Web development  steps are shown in the figure:

Application development not just only written a code, it’s more than that. Web app contains business processes, monitoring and analysis activities and maintenance is also part of the development phase.

How to create a web application?

For beginners, you have to register

your domain and get web hosting. Second, Set up your website through the web host. Installing WordPress. The most and essential part is to prepare your content. Following are the tips to prepare your content:

  1. Don’t procrastinate.
  2. Know your audience – and what they need from your website.
  3. Keep it short and to the point.
  4. Integrate your SEO strategy into your content creation process.
  5. Organize your content.

Moreover, you can prepare your killer content with Appedology Digital. Appedology is a professional content writing agency that offers you high-quality content writing services the USA helping in writing accurate, well-researched and to the point content, putting across your brand’s values and expressing the real culture of your company.

BIG Web Apps:

As the Internet of Things grows, we will see web app trends focused on IoT solutions. In this age of innovative technology, we are seeing that nothing is staying the same, web app developers are putting their efforts into making sure that the web apps/sites are as advanced as the hardware they run on.

You may not have heard of them yet, but Progressive Web Apps (PWA) are about to change the mobile landscape. A business that wants to appeal to mobile-based customers has three choices: build a responsive website, develop a native app or create a PWA. A progressive web application takes advantage of the latest technologies to combine the best of web and mobile apps. Think of it as a website built using web technologies, but that acts and feels like an app.

How to build a web server?

When writing an app, it is up to the web developer to decide what the code on the server should do in relation to what the code on the browser should do. With server-side code, languages include:

  • Ruby on Rails
  • PHP
  • C#
  • Java
  • Python
  • Javascript

Here is a code of PHP for connecting server:

 gallery web development

How to make a web app with python?


  • A computer; any will do!
  • No software required, we’ll install everything as we go.
  • We will also install Python in the course! We can use either Python2.7 or Python3.5


How to Build a Web App

The idea behind creating a Python-driven web application is that you can use Python code to determine what content to show a user and what actions to take. The code is actually run by the web server that hosts your website, so your user doesn’t need to install anything to use your application; if the user has a browser and an Internet connection, then everything else will be run online.

The first thing that you will need is a web hosting plan that allows and supports the ability to run Python code. Since these usually cost money, we’ll stick with a free alternative that is one of the simplest to set up: Google App Engine, which uses a web framework called webapp2. Getting started with Google App Engine will be the quickest and easiest way to begin learning about web application development in Python.


First, go to download and install the appropriate Python SDK (Software Development Kit) for Google App Engine. The Google App Engine Launcher, which will help with getting your web applications online.

Project Setup:

Create a new folder. We will write a very simple Python script that can “respond” with the content of your web page:

print “Content-Type: text/plain”

print “”

print “Congratulations, it’s a web app!”

Save this code in a script named inside your “first_app” folder.

YAML Config

Before we can run our web application, we need to provide the App Engine with a configuration file. This is the file that the webserver will use to get information about what Python code we want it to run. Open up any text editor and copy the following text into a new file:

application: hello

version: 1

runtime: python27

api_version: 1

threadsafe: false


– url: /.*


Now name this file app.yaml and save it in the same folder as the Python script.

Okay, now we can finally take a look at our application!

Apps that need to be made:

  1. The On-demand car wash app will give your customers the facility to order a car wash from home, anytime and anyhow they need it.
  2. An app to find available parking in a specific location. The app will make use of GPS, location, webcams, and parking data to find a free parking space around you in real-time.
  3. A phone silencing app that will automatically put your device on silent mode based on your location.
  4. A subscription organization app that will keep track of all your subscriptions and bills and will alert you as the payment date arrives. The app may also have an integrated payment system for automatic payments of bills.
  5. An app for refugees that will help them understand the languages and cultures of new locations so that they can connect with locals and start becoming a part of the community in a better way.
  6. A transport alert app that will help users catch their buses on time by altering them of the bus timing, schedule, time change, delay, etc. This may also include the GPS facility to keep track of the bus running status in real-time.
  7. A virtual time capsule app that can be used to record memories, videos and other digital data that can only be viewed in a predetermined time in the future and only to specific people.
  8. A food freshness checking app that will let users scan or click a pic of their food and will automatically check the freshness of the food items based on some predefined mechanism and parameters.
  9. A video hosting app to stand up comedy videos. Users can share either their own live comedy performance videos or a recording of a live event they attended and earn on views basis, just like YouTube.
  10. The Criminal alert app can be designed to help users stay alert of wanted criminals in their area. It will also have an alert button to inform the police and GPS feature to show your location to the police.
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