How to Build a Progressive Web App With Ionic 4

Big Guide https://ionicthemes.com/tutorials/about/the-complete-guide-to-progressive-web-apps-with-ionic4

Progressive Web Apps (PWA) are web applications that provide a mobile app-like experience to users. They are designed to work on any device with a web browser and can be installed on the user’s home screen without the need for an app store. Ionic 4 is a popular framework for building PWAs, as it provides a set of pre-built UI components and tools to create fast and responsive mobile applications. In this article, we will go through the steps of building a PWA with Ionic 4.

Step 1: Install Ionic 4

Before we start building the PWA, we need to install Ionic 4. Ionic 4 is built on top of Angular, so we need to have Angular installed as well. To install Ionic 4 and Angular, we can use the following command:

javaCopy codenpm install -g @ionic/cli @angular/cli

Step 2: Create a new Ionic 4 Project

Once we have installed Ionic 4 and Angular, we can create a new Ionic 4 project by running the following command:

sqlCopy codeionic start myApp blank --type=angular

This will create a new Ionic 4 project called “myApp” with the blank template.

Step 3: Test the App

Now we can test the app by running the following command:

Copy codeionic serve

This will launch the app in a web browser, and we can see the default home page of the app.

Step 4: Add PWA Support

To add PWA support to the app, we need to install the “@angular/pwa” package. We can do this by running the following command:

sqlCopy codeng add @angular/pwa --project myApp

This will add PWA support to the app and create a “manifest.webmanifest” file, which contains metadata about the app, such as its name, icons, and theme color.

Step 5: Modify the App Manifest

Next, we need to modify the app manifest file to include the necessary information about the app. We can do this by opening the “manifest.webmanifest” file and editing the values for the “name”, “short_name”, “start_url”, “icons”, and “theme_color” fields.

Step 6: Add Icons

To add icons to the app, we need to create a set of images with different sizes and resolutions. We can use a tool like “https://app-manifest.firebaseapp.com/” to generate the icons for us. Once we have the icons, we can place them in the “src/assets/icon” folder of the app.

Step 7: Modify the App Module

To enable PWA features in the app, we need to modify the app module by importing and registering the “ServiceWorkerModule”. We can do this by opening the “app.module.ts” file and adding the following code:

typescriptCopy codeimport { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { IonicModule } from '@ionic/angular';
import { AppComponent } from './app.component';
import { ServiceWorkerModule } from '@angular/service-worker';
import { environment } from '../environments/environment';

@NgModule({
  declarations: [AppComponent],
  imports: [
    BrowserModule,
    IonicModule.forRoot(),
    ServiceWorkerModule.register('ngsw-worker.js', {
      enabled: environment.production,
    }),
  ],
  bootstrap: [AppComponent],
})
export class AppModule {}

Step 8: Build the App

Now we can build the app by running the following command:

cssCopy codeionic build --prod

This will build the app in production mode and generate a set of optimized files for deployment.

Step 9: Deploy the App

Finally, we need to deploy the app to a web server.

What Makes PWA a Good Choice for eCommerce

With the ever-growing popularity of mobile devices and the rise of mobile commerce, it’s no surprise that more and more businesses are looking for ways to optimize their online presence for these platforms. While there are a number of different ways to do this, one of the most effective is through the use of PWAs short for progressive web application. 

PWAs are web applications that are designed to function like native apps, but without the need to be downloaded and installed from an app store. This makes them ideal for businesses that want to offer their customers a seamless and convenient experience regardless of what device they’re using. 

In addition, PWAs are also much more affordable to develop than traditional native apps, making them a great option for businesses on a budget. So if you’re thinking about developing a PWA for your eCommerce business, here are just some of the benefits that you can expect to see.

What makes PWA a good choice for eCommerce development?

PWA is a good choice for eCommerce development because it is fast, reliable, and engaging. PWA is fast because it uses caching to load pages quickly, even on slow internet connections. 

PWA also works offline or in poor network conditions making it more reliable. Last but not least, PWA offers an app-like experience to users, which can help increase conversion rates. That’s why this technology is, in fact, so engaging. 

What are the benefits of using PWA for eCommerce?

There are many benefits of using PWA for eCommerce, including the following:

-PWAs can improve your website’s performance, since they’re built using web technologies that are designed to be fast and efficient.
-PWAs can provide a more immersive and app-like experience for your users, which can lead to higher engagement and conversions.
-PWAs can be added to the home screen of a user’s device, making your eCommerce site easily accessible with just a few taps.
-PWAs can work offline or in low-quality network conditions, which is ideal for users with spotty internet coverage.

What is the future of PWA for eCommerce?

The future of PWA for eCommerce looks very promising. With the ever-growing popularity of mobile devices and the need for businesses to have a mobile-friendly presence, PWAs offer a great solution. 

They are fast, reliable, and can be used offline, which is an ideal solution, especially since they work as both web pages and mobile apps. In addition, they are relatively easy and inexpensive to develop, which makes them a great option for small businesses.

PWA are a good choice for eCommerce since they provide an excellent mobile-friendly solution. They are also much more seamless to create and maintain than native apps making them ideal for online stores on a budget.

2022 Programming Trend Predictions

2022 is almost here, as crazy as that sounds. The year 2022 sounds like it’s derived from science fiction, yet here we are — about to knock on its front door.

If you’re curious about what the future might bring to the programming world, you’re in the right place. I might be completely wrong — don’t quote me on this— but here’s what I think will happen. I can’t predict the future, but I can make educated guesses.

The best way to predict your future is to create it.

Abraham Lincoln

Rust Will Become Mainstream

Rust- https://www.rust-lang.org/

Rust is a multi-paradigm system programming language focused on safety — especially safe concurrency. Rust is syntactically similar to C++, but it’s designed to provide better memory safety while maintaining high performance.

Source: Leftover Salad

We’ve seen four years of strong growth of the Rust programming language. I believe 2020 is the year Rust will officially become mainstream. What is mainstream is up for self-interpretation, but I believe schools will start introducing Rust to their curriculum. This will create a new wave of Rust engineers.

Most loved programming languages from the 2019 StackOverflow Survey.

Rust has proven itself to be a great language with a vibrant and active community. With Facebook building Libra on Rust — its the biggest project ever — we’re about to see what Rust is really made off.

If you’re looking to learn a new language, I would strongly recommend learning Rust. If you’re curious to learn more, I’d start learning Rust from this book. Go Rust!


GraphQL Adoption Will Continue to Grow

GraphQL Google Trends

As our applications grow in complexity, so do our data consumption needs. I’m a big fan of GraphQL, and I’ve used it many times. I think it’s a far superior solution to fetching data compared with a traditional REST API.

While typical REST APIs require loading from multiple URLs, GraphQL APIs get all the data your app needs in a single request.

GraphQL is used by teams of all sizes in many different environments and languages to power mobile apps, websites, and APIs.

Who’s using GraphQL

If you’re interested in learning GraphQL, check out this tutorial I wrote.


Progressive Web Apps Are a Force to Reckon With

Progressive Web Apps (PWA) is a new approach to building applications by combining the best features of the web with the top qualities of mobile apps.

Photo by Rami Al-zayat on Unsplash

There are way more web developers in the wild than native platform-specific developers. Once big companies realize that they can repurpose their web devs to make progressive web applications, I suspect that we’ll be seeing a huge wave of PWAs.

It will take a while for bigger companies to adapt, though, which is pretty normal for technology. The progressive part would generally fall towards the front end development since it’s mostly all about interacting with the Web Workers API (Native Browser API).

Web apps aren’t going anywhere. More people are catching onto the idea that writing a single cross-compatible PWA is less work and more money for your time.

PWA Google Trends

Today is a perfect day to start learning more about PWAs, start here.


Web Assembly Will See More Light

Web Assembly

WebAssembly (abbreviated Wasm) is a binary instruction format for a stack-based virtual machine. Wasm is designed as a portable target for compilation of high-level languages like C, C++, and Rust. Wasm also enables deployment on the web for client and server applications. PWAs can use wasm too.

In other words, Web Assembly is a way to bridge JavaScript technologies with more level technologies. Think of using a Rust image processing library in your React app. Web assembly allows you to do that.

Performance is key, and as the amount of data grows, it will be even harder to keep a good performance. That’s when low-level libraries from C++ or Rust come into play. We’ll see bigger companies adopting Web Assembly and snowball from there.


React Will Continue to Reign

Frontend JavaScript frontend libraries

React is by far the most popular JavaScript library for front end development, and for a good reason too. It’s fun and easy to build React apps. The React team and community have done a splendid job as far as the experience goes for building applications.

React — https://reactjs.org

I’ve worked with Vue, Angular, and React, and I think they’re all fantastic frameworks to work with. Remember, the goal of a library is to get stuff done, so focus less on the flavor, and more on the getting stuff done. It’s utterly unproductive to argue about what framework is the “best.” Pick a framework and channel all your energy into building stuff instead.


Always Bet on JavaScript

We can say with confidence that 2010s was the decade of JavaScript. We’ve seen a massive spike of JavaScript growth, and it doesn’t seem to be slowing down.

Keep Betting On JavaScript By Kyle Simpson

JavaScript developers have been taking some abuse by being called “not real developers.” JavaScript is the heart of any big tech company, such as Netflix, Facebook, Google, and many more. Therefore, JavaScript as a language is as legitimate as any other programming language. Take pride in being a JavaScript developer. After all, some of the coolest and most innovative stuff has been built by the JavaScript community.

Almost all websites are leveraging JavaScript to some degree. How many websites are out there? Millions! New Upcoming JavaScript Features — 2019, 2020 and Beyond A peek into the future on what’s coming to the JavaScript languagemedium.com

It has never been a better time to be a JavaScript developer. Salaries are on the rise, the community is as alive as ever, and the job market is huge. If you’re curious to learn JavaScript, the “You Don’t Know JS” book series was a fantastic read.

Top languages over time

I wrote earlier on the subject of what makes JavaScript popular — you should probably read that too.

Top open source projects
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