Getting Started With JHipster, Part 3

Matt McCandless AngularJS, Java, JavaScript, Spring, Tutorial 1 Comment

Welcome back to this JHipster tutorial series! In part one we covered creating a monolithic application. In part two, we walked through creating a microservice application (which was a bit more complicated).

For those of you out there working to get things going with JHipster, there are some setup things and “gotchas” that I’d like to highlight. So this little blog is more of a helper for those of you who have decided to try JHipster out and play around with it. That’s what we’ll be discussing in this blog post with the hope that I can help you minimize the getting-up-to-speed curve…


Getting Started With JHipster, Part 2

Matt McCandless AngularJS, Java, JavaScript, Microservices, Technology Snapshot Leave a Comment

In part two of this series, we create a microservice architecture using JHipster’s available options for doing so. There is quite a bit more work to do with this approach as compared with the monolithic approach. But, in the end, it pays off. You will see the benefits and flexibility in decoupling our different layers of our architecture. Each layer will not be dependent upon another to run. Let’s get started…

Web Development Business

Blood, Sweat, and Writing Automated Integration Tests for Failure Scenarios

Billy Korando Java, Opinion, Programming, Spring, Tutorial 2 Comments

I introduce the process I went through to diagnose the bug and determine the correct integration test solution to fix it the right way. In doing so, I had to create a test that accurately reproduced the scenario my service was experiencing in PROD. I had to create a fix that took my test from failing to passing. And finally, I worked to increase confidence in the correctness of code for all future releases, which is only possible through automated testing.


Getting Started With JHipster, Part 1

Matt McCandless AngularJS, Java, JavaScript, Spring, Technology Snapshot Leave a Comment

So, you want to stay on the leading edge of technology, but feel overwhelmed by all the moving parts. You’re in luck! jHipster aims to make setting-up an app fairly painless.

In this jHipster series we are going to take you through, first, creating a monolithic application. Secondly, we will make an app in the microservices style. Last, we’ll give you some tips and tricks for jHipster best practices. Let’s first begin with Part One…

Spring Batch

Spring Batch: Multiple Format Output Writer

Jonny Hackett Java, Spring, Spring Batch Leave a Comment

Being a strong advocate of Spring Batch, I’ve always talked about the notion of Spring Batch providing developers with a framework that allows them to focus on solving business needs. By doing so, it allows developers to not spend an inordinate amount of time solving all of the technical aspects to support the solution. To illustrate what I mean by …

JSON Web Tokens

JSON Web Tokens With Spring Cloud Microservices

Thomas Kendall Java, JavaScript, Microservices, Security 3 Comments

At Keyhole, we have published several blogs about Microservices. We’ve talked about architectural patterns used in a Microservices environment such as service discovery and circuit breaker. We’ve even posted blogs on platforms and tools, such as the recent blog on Service Fabric. One important piece of the architecture that we have glossed over is the security around Microservices. Specifically, authentication …


Whirlpool: Microservices Using Netty And Kafka

John Boardman Java, Technology Snapshot, Tutorial 2 Comments

Introduction Update! Whirlpool now uses the “just released” Netty version 4.1.3. The great news about this is the upgrade required zero code changes, just update the pom and rebuild! In my last blog, I introduced Netty being used as a web server. That example worked well… as long as a broadcast server is what was needed. Most of the time …


Don’t Hate the HATEOAS Part Deux: Springtime for HATEOAS

Billy Korando Java, Spring, Technology Snapshot Leave a Comment

In the much belated conclusion to my series on HATEOAS, we will be diving into how to implement HATEOAS using Spring-Data-REST and Spring-HATEOAS. It is springtime for HATEOAS! I put together a functioning project that will demonstrate the code examples I have below as well as a few other features. The project can be found here: https://github.com/in-the-keyhole/hateoas-demo-II. JDK 8 and Maven are …