Level Up Your Vaadin Apps with Vaadin Editable Grid

Vaadin has a fantastic Grid component that also can be made editable. But the configuration of the behavior, especially if you want to use the UI with the keyboard, can be[...]

Beyond Angular and React: Building Web Apps with Vaadin

Single-page web applications have today practically become standard. Angular, React, and Vue.js are the best-known representatives in this category of web frameworks. But would[...]

Vaadin BeanValidationBinder with Custom Resource Bundle

The BeanValidationBinder from Vaadin uses the default message bundle ValidationMessages from Bean Validation for translations. But often one has already a resource bundle with[...]

The Real Value of Microservices

For several years, the microservices architecture has established itself as a quasi-standard and is deployed in many projects. That it is not a catch-all solution is well known.[...]

Deploy Vaadin Application on Heroku

Heroku is a platform as a service (PaaS) that enables developers to build, run, and operate applications entirely in the cloud. I’ve used Heroku for some smaller projects in[...]

Vaadin UI Testing with Playwright

In my Vaadin projects, I usually use Karibu Testing for unit and/or Vaadins TestBench for end-to-end tests. Karibu Testing is an open source testing framework developed by Martin[...]

Connect App Engine to Cloud SQL

How to connect from an application running on Google Cloud App Engine to a PostgreSQL database running in Cloud SQL.

Deploy to Google Cloud App Engine with GitHub Actions

In my previous post, I was explaining how to deploy to Google Cloud. The final missing part was to deploy it automatically with GitHub actions. The authentication will be done[...]

Deploy Vaadin App to Google Cloud App Engine with Java 17

Today I tried to deploy a Vaadin application to Google Cloud App Engine It was not as straightforward as expected so I want to share my findings.

Build Master-Detail App with Hilla

In this post, I’ll explain how to use the web application framework Hilla to create a master-detail view with a Grid to display the data and a Form to edit the data.

How to use jOOQ with Testcontainers, and Flyway

When using a database the question is how to manage the versions of the schema and how to use the database in testing. Container technologies became a defacto standard. Why not[...]

Web Accessibility with Vaadin

When you create a product, you naturally want as many people as possible to use it. However, some people have to be enabled to use it first, namely by making the product[...]