Wim Deblauwe
@wimdeblauwe
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Software Engineer. Writes mostly Java. Author of "Taming Thymeleaf". Blogs at . YouTube:
Kortrijk, Belgium
Joined May 2010
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Pinned Tweet
🎉 Thrilled to announce the official release of my new book 'Modern frontends with htmx'! Discover how to master
#htmx
with
#SpringBoot
and
#Thymeleaf
for rich, interactive web applications. Say goodbye to JavaScript complexity!
📚 Explore more:
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Microservices: what could have been a JOIN, is now a 1000 network calls
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Got the cover of my upcoming book from the designer. What do you think? 😍
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“SPAs incur complexity that simply doesn't exist with traditional server-based websites[..] Too often, though, we don't see teams making that trade-off analysis, blindly accepting the complexity of SPAs by default even when the business needs don't justify it.”
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🚀 Spring Boot tip:
Easily convert Spring Boot property values between the different formats (.properties, .yaml, env variables) via this website:
(Thanks to
@simas_ch
for the tip)
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Spring Addons is an amazingly useful library if you work with Spring Security, strange it is not more widely known. Makes mapping Keycloak roles to Spring Security roles a matter of setting a few properties.
Check it out at
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✍️ Blogged: Transactional Outbox pattern with Spring Boot
Thanks to
@MichaelDevloo
for help with the Spring Integration implementation and
@odrotbohm
with the Spring Modulith implementation.
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📕 Happy to announce that my book 'Practical Guide to Building an API Back End with Spring Boot' is released as a 2nd edition on
@InfoQ
See for more info and to download the book for free!
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htmx 2.0 is now also available on webjars for those of us using it on the JVM (Thanks
@_JamesWard
!)
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Using the Server-sent events extension of htmx and Spring Boot with webflux allow for nice real-time updates with very little code.
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I just reached 20.000 points on
@StackOverflow
. 🎉
I even find the "People reached" more amazing. I hope I have made a positive contribution to those 4 million people to help them on their programming journey.
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Extremely happy to hear that my talk ‘Modern frontends using Spring Boot and Thymeleaf with htmx’ has been accepted for
@spring_io
in Barcelona 🎉🇪🇸
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Starting today as a freelancer after being an employee for 20 years. Exciting times ahead!
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htmx 2.0.0-alpha1 is now also available via webjars for testing it on the JVM.
happy to announce htmx 2.0.0-alpha1 is available for testing:
1.x -> 2.x upgrade guide here:
note this is an ALPHA for testing in the wild, be prepared for issues
see the announcement for what to look out for
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My book 'Modern frontends with htmx' has been updated to htmx 2.0.0.
See for some screenshots and animated gifs of the things you learn to build on the book.
#springboot
#thymeleaf
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Learn how to combine Spring Boot, Thymeleaf and htmx with Server-Sent Events to show progress of a long running task in HTML without JavaScript:
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Happy to announce that my
@springboot
book 'Practical Guide to Building an API Back End with Spring Boot' is available at
@InfoQ
for download. See
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“Hire full-stack developers, and don't let them split the frontend and backend into separate jurisdictions.” Spring Boot and Thymeleaf is a great combination for this!
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htmx-spring-boot 3.3.0 released which will now use the Vary header for htmx requests which will help avoid problems with caching. Thank you
@david_syer
for the contribution!
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Wondering if error-handling-spring-boot-starter is still useful now that Spring 6 has ProblemDetail?
In this blog post I compare both options for having standard error responses for your REST API:
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🎉 I am pleased to announce the official release of Taming Thymeleaf!
There are over 400 pages of Thymeleaf and Spring Boot learning available in the book.
See
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Kubernetes is to server side dev as SPA’s to web dev. Great if you really need it, overkill most of the time.
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Want to learn how to do inline editing and drag and drop with
#springboot
and
#thymeleaf
using
#htmx
? Learn how in my book "Modern frontends with htmx":
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Jstachio 1.0 is released, which is an alternative to Thymeleaf as a templating language. It use mustache syntax.
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Testimonial for my book 'Modern frontends with htmx' by Carson Gross. Thanks for the kind words Carson!
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@spring_io
@nebhale
I'd be very happy to learn more about modern classic server side rendered frontends with Thymeleaf & htmx and also learn more about Vaadin (and it's typescript younger sister) cc
@wimdeblauwe
@simas_ch
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Released Error Handling Spring Boot Starter 1.6.0. See for details. Thanks to
@AxelMederer
and
@rubensa76
for their contributions.
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📢 Announcing the first release of `ttcli`, a command line tool to run on top of a fresh Spring Boot app to quickly setup Thymeleaf with live reload, webjars, and Bootstrap or Tailwind CSS as CSS framework
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🎉Massive new release of htmx-spring-boot:
I really cannot thank enough as he did most of the work on this release.
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Nice blog post on 'Rich Domain Model with Hibernate':
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✍️ New blog 'Release 1.0.0 and 2.0.0 of htmx-spring-boot-thymeleaf'. Describes the history of the project and the most important features we currently have.
#springboot
#thymeleaf
#htmx
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Solution 4: use a full-stack framework like Spring Boot with Thymeleaf and htmx (or Laravel, or Ruby on Rails or …)
I often see web apps with separate frontend and backend dev teams.
This front/back developer split leads to a common problem: Frontend devs become victims of backend problems that they can't fix.
Common backend problems:
🚩Instability
🚩Performance
🚩Clunky API design
🚩Poorly
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htmx-spring-boot-thymeleaf 1.0.0 (for Spring Boot 2) and 2.0.0 (for Spring Boot 3) have both just been released. See
There is (currently) no difference in features, just the Spring Boot compatibility.
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I am updating my book 'Modern frontends with htmx' for htmx 2.0 and Spring Boot 3.3. If there is anybody that has feedback on the current version, now is the time to let me know!
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Watch this video, then follow these links to learn even more about the tools that
@maciejwalkowiak
explains so nicely here.
* Digma:
* FlexyPool: * Spring Boot Data Source Decorator: (1/2)
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My error handling library has been updated for Spring Boot 3. See
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I had a great time on
#SpringOfficeHours
talking about
#springboot
,
#thymeleaf
and
#htmx
. If you missed it, you can replay it at
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My book 'Taming Thymeleaf' has been updated for Spring Boot 3. 🎉
You can get it with a discount of 30% for the next 3 days using link.
If you want to do full-stack development with
#java
and
#springboot
, now is the time!
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The OAuth2 support in the http client of
@intellijidea
is really great! See if you want to learn more.
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If you use
#thymeleaf
with
#htmx
and got a bit worried with the recent tweets about XSS security: As long as you use `th:text` for displaying any user input, there is no problem at all. 1/3
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I just stumbled upon this:
Seems like a good library at first sight to implement a transactional outbox, anybody that knows it or has experience with it?
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Started 2 opensource projects today with 1 goal: Using Vite with Spring Boot:
* -> Java library for Spring Boot (and Thymeleaf)
* -> Vite plugin to expose information to be consumed by the Java library
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Excited to be on
#SpringOfficeHours
tomorrow evening at 19h CEST.
@therealdanvega
,
@dashaun
and me will be talking about frontends for Spring Boot and more specifically htmx. Join us at !
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Released version 3.4.0 of htmx-spring-boot for all you
#htmx
and
#springboot
lovers inside and outside of Barcelona. See for details.
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Received the test copy of the print version of Taming Thymeleaf. Very happy with the result! Those of you that rather have a book on paper will be able to get this very soon.
#thymeleaf
#springboot
#lulu
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Using
@vlad_mihalcea
's hibernate-types to store JSON with
@springboot
? Follow my instructions to ensure the correct ObjectMapper is used:
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📽️My first YouTube movie: Getting started with Spring Boot and Thymeleaf
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🎉 Happy to announce version 1.0.0 of ttcli - a command line tool to generate a Spring Boot with Thymeleaf project.
It supports
@tailwindcss
,
@htmx_org
,
@getbootstrap
and
@shoelace_style
.
Read more and see it in action at the release announcement post:
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Just got this via email:
"Your book 'Thaming Thymeleaf', is an absolute game-changer for every spring boot developer on earth."
I can only be grateful for such kind words 🙏
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Want to show a nice toast message in your
#thymeleaf
#springboot
project? I show you how to do that using
#htmx
and
#shoelace
in my latest blog post.
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✍️ New blog: Using Google login with Spring Boot 3 and Thymeleaf
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If you like Java instead of Rails, just replace 'Ruby on Rails' with 'Spring Boot with Thymeleaf' and 'hotwire' with 'htmx' and the same things said in the thread apply.
Ruby on Rails is coming back!
If you're on the Javascript train, you're probably tired of new releases.
But this one's gonna rock the boat. Here's why... 👇🧵
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Will be getting up early tomorrow to go give a training on Thymeleaf and Htmx. Really excited about it!
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Get introduced to Spring Boot with htmx by
@starbuxman
and become an expert after that by reading my book 'Modern frontends with htmx' ()
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🚀 New release of Error Handling Spring Boot Starter with 2 nice additions:
1) Custom AccessDeniedHandler to have consistent error responses for 403 errors
2) Opt-in support for handling filter exceptions
See for all details.
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New release of htmx-spring-boot-thymeleaf with a single bugfix:
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I got this message from somebody via LinkedIn, very lovely to hear things like this:
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My first contribution to testcontainers got released 🎉
Testcontainers for Java 1.20.0 is out!
- Enhanced Dockerfile &
@Docker
Compose support
🆕
@grafana
module
- Support for pgvector via JDBC URL
- Improvements for
@localstack
, oracle-free, kafka,
@weaviate_io
modules
- And more
🎉
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At the bottom of you can view some animated gifs that show the various examples you build in the book with
@htmx_org
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My talk on
#springboot
,
#thymeleaf
and
#htmx
is at 12h on May 26th, the first day of the conference 🗓
The full Spring I/O 2022 schedule is now available 🎉 Time to start planning your time at the conference!
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Current status: updating my Taming Thymeleaf book to Spring Boot 3 🍃
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New release of the
#htmx
and
#springboot
integration with some nice contributions from
@david_syer
and "runek00". See
for details.
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You can start using test class ordering in production now. Read how to apply this for Spring Boot tests:
#JUnit
5.8 is released!
📦 Declarative test suites
🎲 Test class ordering
📂 Multiple temp dir support
📒 Extension registration on fields/params
⏱ LauncherSession and listener
📹 More JFR events and Java 8u262+ support
❄️ New UniqueIdTrackingListener
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German followers: how would you translate 'Breadcrumb' ? Our application currently uses 'Paniermehl' and I feel this is wrong.
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✍️ I wrote about getting started with
@bootify_io
, a prototype generator for Spring Boot and Thymeleaf
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Are you on Spring Boot 3 ? You should be!
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I build a POC on using Vite with Spring Boot and Thymeleaf. See for the code. There is a bit of explanation in the readme. First impression is that the live reload is very fast! And you can write TypeScript without extra config.
All feedback welcome!
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✍️ With some Alpine magic, I updated my toast notifications sample that uses Thymeleaf, Shoelace and htmx so there is no need for JavaScript anymore *and* it unlocks some cool new possibilities by creating the HTML in a Thymeleaf fragment on the server!
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There is the TALL stack and the MEAN stack. I like the JSBTTAH (1) stack:
- Java
- Spring Boot
- Thymeleaf
- Tailwind
- Alpine
- HTMX
(1) Not an actual abbreviation :)
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Published a new version of my book Taming Thymeleaf with some typo's fixed. Thank you to everybody that informed me about them!
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How to use
@junitteam
5.8.0-M1 ClassOrdener to order your
@springboot
unit and integration tests:
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Using JOIN FETCH for the first time to avoid LazyInitializationException. Thanks
@vlad_mihalcea
for enlightening us!
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Developers: business should use clear terminology and define an ubiquitous language.
Also developers: we are using clean architecture, but you can call it hexagonal architecture, onion architecture or ports and adapters. Nobody knows exactly the difference anyway 🙃
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✍️ Blogged: Htmx global error handling with the just releasd htmx-spring-boot 3.2.0 library.
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🎉 Major update to ttcli, my command line tool to generate a Spring Boot with Thymeleaf project.
You can now use Vite for lightning-fast live reloading. I'd love to get some feedback from people that are willing to try it out. See for release notes.
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🎙️I got interviewed by one of the Leanpub founders on my book 'Modern frontends with htmx'. You can watch the interview on YouTube via the link below to learn more about the book and the person behind the book. Thank you
@lenepp
, it was a fun experience.
NEW! A Leanpub Frontmatter Podcast Interview with Wim Deblauwe, Author of Modern frontends with htmx: Use htmx with Spring Boot and Thymeleaf to build dynamic and interactive web applications => Watch here:
#webdevelopment
#htmx
@wimdeblauwe
@leanpub
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Get my book 'Taming Thymeleaf' at 40% discount now until Cyber Monday using
See for more information about the book.
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Dear
@springframework
I am looking for the docs on ProblemDetail. How can I know where to find those starting from without having to click to every possible link on there until I find it?
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