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 Vysny and TestBench the commercial UI testing framework based on Selenium. Testing with TestBench/Selenium is often slow and flaky. I encountered non-reproducible problems when running the test. [...]

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 with Workload Identity Federation.

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 use containers for development and your database?

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 accessible and barrier-free.

Visualize Message Flow with Vaadin & Neo4j

Analyzing and visualizing the message flow between business functions was the goal of my current project. At first, we considered using a UML tool for this job, but we came to the conclusion that it might not be as flexible as we need it to be. Finally, I’ve got the assignment to create a custom [...]

Vaadin and jOOQ – a Match Made in Heaven

Have you ever had to write an application that didn’t do much other than display and change data? And did you use a Single Page Application framework like Angular, a REST API, and Hibernate?

News from Vaadin!

The good folks at Vaadin are constantly hard at work! The developer of the well-known Java application framework of the same name has announced two important changes! From Vaadin Fusion to Hilla: The development of the Vaadin Framework family has spawned a new branch in its family tree. Introduced with Vaadin 15, Fusion has been [...]

Vaadin Community Award

Simon Martinelli is one of the first Vaadin Community Award winners

Software Architecture in Agile Development Projects

As advocates of agility, we could see this common definition of software architecture as potentially problematic.