Category: Tutorials
Vaadin and Hazelcast: A match made in heaven
On my personal blog, I wrote some time ago a lengthy piece listing the reasons why I love Vaadin. However, a technology stack has both pros and cons. It fits some contexts better than some others. Vaadin is like any other stack in that regard: because it stores state on the server, it’s not a good ...
Creating Forms with TypeScript and LitElement
Creating data-intensive UIs with forms and data grids can be difficult. Developers need to consider many aspects—business logic, data consistency, usability, accessibility, maintainability—to create a good experience for users and keep the code complexity manageable. That’s why frameworks like ...
Learning Maven Concepts
Maven is a tool that many Java developers use on a daily basis. You can get started with Maven and incorporate it into your everyday life fairly quickly: Install Maven, download, checkout, or create a new Maven project, run mvn install, and execute the application through a plugin goal such as mvn ...
Deploying a Vaadin app to Kubernetes
Because there are few things more exciting than deploying an AI app to your own cloud, today we'll be deploying Alejandre Duarte's Vaadin Chatbot demo app to a local Kubernetes cluster. It is fairly straightforward. If you haven’t already done so, read the blog on how to build the Chatbot app here. ...
New and updated cloud deployment tutorials
The final step of developing a web application is to deploy it online. However, this is often easier said than done, because of the number of available methods and many other factors that need to be considered. Cloud services are already a more popular way to host your web app than running a local ...
Building a chatbot app in Java
Ever since I played my first role-based video game, I’ve been interested in chatbots (aka chatterbots). How could I implement something like this? Sure, I could code a bunch of if...else statements, but that sounded like a lot of work. Some years ago, I discovered AIML (Artificial Intelligence ...
Submitting a PWA to Microsoft Store using PWA Builder
This tutorial shows how you build and submit your progressive web application (PWA) to the Microsoft Store. We use the PWA from our Modern Web App tutorial series and package it as an AppX package using the PWA builder by Microsoft. You can find more details about the PWA Builder in their GitHub ...
Building a dashboard for a REST web service in Java
Vaadin is a great tool for building dashboards. Typically, a dashboard is a screen containing information, metrics, key indicators, and other data points related to business processes. Dashboards allow managers to track and monitor the health and performance of their organization. After seeing ...
A practical introduction to unit and integration testing
In this article, I cover the basics of unit testing and integration testing in Vaadin applications. First I go through the basics of unit testing in Java and then look into testing Vaadin applications with Vaadin TestBench. This is a beginner-friendly introduction that will show you the basic steps ...