This Week in Spring - July 28th, 2020

Engineering | Josh Long | July 28, 2020 | ...

Creating a Supplier Function and generating Spring Cloud Stream Source

Engineering | Soby Chacko | July 27, 2020 | ...

This is part 3 of the blog series in which we are introducing java functions for Spring Cloud Stream applications.

Other parts in the series.

Part 1 - General Introduction

Part 2 - Function Composition

In the last two blogs in this series, we provided a general introduction to this new initiative of migrating all the existing Spring Cloud Stream App Starters to functions and the various ways in which we can compose them. In this blog, we continue the series, showing how these functions are developed, tested, and used to generate Spring Cloud Stream applications. In particular, here we are focusing on how to write a supplier function (implementing java.util.function.Supplier

This Week in Spring - July 21, 2020

Engineering | Josh Long | July 21, 2020 | ...

Hi, Spring fans! Welcome to yet another installment of This Week in Spring! How're you doing? Good, I hope!

I've just finished recording two epic episodes of a Bootiful Podcast that'll be streaming to ears near you in the not-too-distant future. I can not wait.

I'm also super excited: tomorrow I'll be hosting the Reactive Spring and Spring Tips-themed edition of SpringOne Tour. Do not miss this!

Also, the Spring team wants to hear from you! Please fill this survey out.

We've got a ton of stuff to get into this week, so let's begin.

Introducing Java Functions for Spring Cloud Stream Applications - Part 1

Engineering | David Turanski | July 20, 2020 | ...

Introducing Java Functions for Spring Cloud Stream Applications - Part 1

Last week we posted Introducing Java Functions for Spring Cloud Stream Applications - Part 0
to announce the release of Spring Cloud Stream applications 2020.0.0-M2.
Here, we explore function composition, one of the more powerful features enabled by the function oriented architecture presented in Part 0. If you haven’t had a chance to read Part 0, now would be a great time!

Function Composition

Function composition has a solid theoretical foundation in mathematics and computer science.
In practical terms, it is a way to…

This Week in Spring - July 14th, 2020

Engineering | Josh Long | July 14, 2020 | ...

Hi, Spring fans! How're things? Good? Good. I just finished (virtually) presenting for the always-lovely London Java Community this morning. We spoke about Kotlin and Spring and things. It was good. Thank you so much for having me LJC! I also kicked off the epic JetBrains Java Day Online event last Friday. That was a ton of fun! Thank you Jetbrains. I finally, finally, put some elbow grease into automating a listing of some my activity and so now whenever I publish a new Spring Tips video, a new A Bootiful Podcast podcast, or commit to a new public appearance, I'll have information here on my…

The Spring team wants to hear from you!

Engineering | Ben Wilcock | July 14, 2020 | ...

The “State of Spring 2020” report will be published soon, based on the views and experiences of Spring Boot development experts across the globe. In exchange for 15 minutes of your time to complete the survey, you’ll be among the first to receive the survey report and the insights included in it. Please feel free to share this email with your Spring development colleagues. The survey will close at the end of July.

Take the survey now.

Thanks for sharing your thoughts and experiences with us! The Spring Team

Building web applications with Spring Boot and Vaadin

Engineering | Stéphane Nicoll | July 14, 2020 | ...

This post is a guest post by community member Marcus Hellberg (@marcushellberg). Marcus is the head of the Community team at Vaadin. He likes helping developers discover and learn modern web technologies by creating online content and speaking with developers at events.

Building web apps can be a daunting task. There are many moving parts: you need to define the structure in HTML and then use CSS to make it look the way you want. For frontend apps, you also need to write the app logic in JavaScript and connect it to your backend over REST. And of course, you also need to implement the…

First milestone of Reactor 2020.0 (Codename Europium)

Engineering | Simon Baslé | July 10, 2020 | ...

Earlier this month, we released a first milestone of Reactor 2020.0. This cycle, codename Europium, follows the Dysprosium one (which included reactor-core 3.3.x and reactor-netty 0.9.x).

It includes reactor-core 3.4.0 and reactor-netty 1.0.0.

In this blog post, we'll cover a few highlights of the reactor-core milestone, and briefly mention what's in store for M2.

For reactor-netty, we'll link to a separate blog post here as soon as it is out.

Note also that there is a new versioning scheme in place, which has been adopted accross the Spring portfolio: see the reference guide and this blog post

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