What is a progressive web application?
PWA, or Progressive Web Application is an application written in a web language (JavaScript, CSS, HTML and Service Workers), which works as a native mobile application. That is, it shows notifications, works without an Internet connection and runs in the background, and can end up using typically native functions such as the camera, geo location or new gesture navigation. In contrast to a native application, the PWA does not have to be downloaded from an app store as it is accessed through an Internet address (URL) like any web page. Progressive web applications were announced 4 years ago, as a result of the joint work of companies such as Google, Microsoft and Apple, among others. This methodology of creating mobile sites immediately attracted the attention of large corporations due to the relative ease of development and the virtually instantaneous user interaction with the application. In May 2016, at the Google Developer Conference, The Washington Post demonstrated its first hybrid mobile app. Progressive mobile apps are the product of the joint evolution of the mobile website and the native app. In short, a hybrid that incorporates the best of both technologies. Now the ease of installation and opening of the mobile site and the functionality of the native application (push notifications and other native functions) have been merged. PWAs look and behave like a native app. Advances in the operability of browsers, cache management and push interfaces allow you to install the application on the phone's home screen directly from the browser, receive pop-up notifications and even work without an Internet connection.
Main characteristics of a PWA A progressive app offers the user the following functionality: Progressive: it works for any user, regardless of the browser (Firefox, Safari, etc.), since the fundamental principle is progressive improvement.
Responsive: suitable for any type of device: desktop computers, smartphones, tablets or any other device.
Autonomous: With the service worker, you can operate without an Internet connection or on slow networks.
Fresh: always with new information thanks to the service worker update process. Secure: transmits data through HTTPS to avoid data interception or spoofing.
Exposure: they are identified as apps thanks to the Manifest and Service Worker registration scopes that allow search engines to find them.
Communication: attracting users to an application is easier thanks to features such as push notifications.
Quick Install - Allows customers to keep the most useful apps on the home screen, without using an app store.
Accessible - meaning no installation required and easy to share. Similarity: for the user, the experience is like a conventional app, with all its interactions and navigation, since it is based on the shell model of a native applicati
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