Category: Tutorials
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Free ebook: Modern Web Apps with Spring Boot and Vaadin
The popular tutorial series on building modern web apps with Spring Boot and Vaadin is now available as a free downloadable PDF for your offline enjoyment. This is really good, no excellent in fact. - nparsona on YouTube The guide covers everything you need to know to build and deploy a ...
Reactive Chat App with Spring Boot, Project Reactor, and Vaadin
In this tutorial, we learn how to build a reactive chat application. The backend consists of a Spring Boot Application, reactive data types from Project Reactor, and Vaadin for the UI layer. Figure 1. The chat app with a header, messages, and an input layout Downloading the starter project Start by ...
The dangers of using the wrong abstraction for Vaadin access control
Abstractions are important, but mismatched abstractions can be problematic. One particular mismatch that I encounter every now and then is a lot more than problematic: it can be outright dangerous. This is the mismatch between URL-based filtering in various security frameworks and view-based ...
Learn Java web app development: new tutorial series
Today, we launch a new in-depth tutorial series about building web apps with Spring Boot and Vaadin. The content was inspired by frequently-asked questions from our community, like: how do you connect a Vaadin app to a database, or how do you create reusable components? The free tutorial series ...
Vaadin Key Concepts
This document is meant for developers who are new to Vaadin and want to get up to speed quickly. It gives you a quick overview of the core concepts and provides links to relevant documentation for further reading. It can also be used as a quick reference while developing Vaadin apps. If you don’t ...
Production PWA webpack setup
In the previous tutorial, the focus was on learning the basic principles of how Progressive Web Apps work. Some of the issues we identified with the application were: We need to remember to update a timestamp in the ServiceWorker any time we update static resources Our initial caching can easily ...
Converting a website into a PWA
This tutorial will teach you the the basic Progressive Web App concepts by turning an existing web app into a PWA only using the native browser API. The tutorial does not use any framework, everything you learn will be relevant no matter what framework you use in your project. What’s needed In ...
Decoupling Vaadin components with the Observer Pattern
In this tutorial, we show you how to use the observer design pattern to decouple Vaadin components. Who Belongs to Whom? Connecting two components using constructor parameters is a common procedure. It can be clearly seen, for example, in the construction of graphic surfaces. Take, for example, the ...
Speed up Vaadin builds with a local npm registry
In this tutorial, we’re going to show you how to avoid redundant downloads of npm dependencies while building Vaadin applications. Why does npm cause slow development turnaround times? npm is the equivalent of Maven in the JavaScript environment. It manages the front-end dependencies for a Vaadin ...
