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When building your UI with Vaadin, you need no REST endpoints. With Vaadin Flow, you don’t even need to think about what gets transferred between your browser and the server. But it is common for your Vaadin application to expose some REST endpoints, for example, to separate services or complementary native clients.
How to implement responsive web design in Java
Responsive design aims to improve the usability of your app on different devices and varying window sizes. Many consider responsive web design to be a task dedicated to CSS magicians. With Vaadin, the same end result can also be accomplished in pure Java. In fact, you can achieve much more than ...
Six ways to quickly get started with your next Vaadin project
Starting a new project with an unfamiliar framework can be daunting. The steep learning curve involves mastering new syntax and concepts, often slowing initial progress. Troubleshooting can become a solo endeavor due to limited documentation and community support, and integrating the framework with ...
Introducing file-based routing in Vaadin 24.4: Simplify Hilla app creation
With the release of Vaadin 24.4, developers building Hilla applications now have access to a powerful new feature: file-based routing. This enhancement streamlines the process of adding new views and configuring view properties directly within your React components. In this blog post, we'll explore ...
Five methods to create grid layouts with Vaadin Flow
Vaadin ships with a powerful Grid component to display tabular data but is missing a built-in component for grid layouts. In theory, you could use the API in the data grid to lay out components, but this quickly leads to suboptimal performance, and the API is not designed for generic layouts. If ...
Building AI-Powered Java Applications
In the past few months, I've spoken about building AI-powered Java apps at tens of events around the world. What I’ve seen is that Java developers are curious and eager to learn, but AI can seem like a big and daunting new area to get into. Most of us have demanding jobs that occupy our time, and ...
Streamlined Vaadin Flow setup for V24.4
Vaadin 24.4 was a feature release mostly focused on improving React (and Hilla) interoperability and introducing Vaadin Copilot, the new AI-powered development mode widget. However, there are also a couple of quite nice improvements for pure Java developers. Even if none of those interests you, ...
Creating a custom Vaadin UI for an Apache Causeway application
The Apache Causeway project implements the naked objects pattern for Java. In the naked object pattern, the UI is essentially auto-generated based on the domain objects. With only the domain model, and typically some UI hints declared on the domain model, you get a fully functioning UI “for free.” ...
Open any file with Apache Tika
I wrote a handy web utility for you. It can read pretty much any file, detect a mime type and some of its other (file-specific) metadata, and preview its content as text. I'm not sure if it is really useful for anybody, but at least I hope it will work as an example of using Apache Tika in your web ...
A minimal OpenID Connect (OIDC)-secured Vaadin Flow application with Spring Boot
So, do you want or need to build a Java-based web application that is secured by a Single Sign-On (SSO) login? This is a very typical use case where you have part of an application that is not public and requires an authenticated user to access it. You could build a login mechanism yourself, but ...