How to minimize AWS Lambda Java cold starts

You've heard about AWS Lambda and their cold starts and are curious what they are and how to deal with it? Let's have a look how bad they really are and what frameworks like Quarkus and Micronaut can do. [Read More]
Tags: Serverless, AWS Lambda, Java, Quarkus, Micronaut, Spring Cloud

Getting started with HTTPS guide

If you are running a web application and it's still not using HTTPS, shame on you! Even if you are not transmitting sensitive data, there are still several reasons why you should enable HTTPS. [Read More]
Tags: Java, TLS, SSL, Security

Continuous Deployment of a Jekyll site on Bluemix with TravisCI

You’ve been reading much about Continuous Integration and Continuous Deployment and think it only applies to big projects? Think again. A simple site like this website can benefit from it, that is why I will show you how easy it is to set it up for a GitHub project with... [Read More]
Tags: Jekyll, Bluemix, CloudFoundry, GitHub, TravisCI

Build a location based API with Spring Data MongoDB and GeoJSON

Recently I was intrigued about a project discussion in which a high volume REST API was needed to store and retrieve location based information. A performant solution was need that could work with big datasets, atleast containing a few million entries. [Read More]
Tags: Java, Spring, Spring Data MongoDB, Spring Boot, MongoDB, GeoJSON

Getting started with Spring Security, Spring Session and Redis

You want to build a scalable cloud ready application? Great! Let’s have a look how to build a server Spring Boot REST endpoint and secure it with stateless Spring Security. We want to authenticate every request with basic authentication OR with a token when the user has sent its credentials... [Read More]
Tags: Java, Spring, Spring Session, Spring Security, Spring Boot, Redis

Introducing v2

Welcome to the new and (hopefully) improved v2.0. I launched v1.0 of my website around October 2014. Most people I knew that had a website were using WordPress, so to get started quickly I went with that. While WordPress is great, it’s a bit of a heavy weight solution... [Read More]
Tags: WordPress, Jekyll

Enable HTTPS in Spring Boot

This weekend I answered a question about enabling HTTPS in JHipster on StackOverflow that caught a lot of interest on Twitter so I decided to put a short post on it with some more useful details. [Read More]
Tags: HTTPS, Java, JHipster, Spring Boot, Tomcat

Starting a modern Java project with JHipster

Today, I want to talk about a great open-source Java project that will help you hit the ground running when starting a new Java project: JHipster. JHipster is a Yeoman generator that will create a modern AngularJS application with a Spring Boot backend which you can use as a starting... [Read More]
Tags: Java, JHipster, Spring Boot, Yeoman

Don't lose control: Bluemix logs management

Lately I have been busy deploying more Cloud based applications, mostly on Bluemix. I try to following a Microservices (or Service Oriented) Architecture approach so I have multiple applications working together. At a certain point following up on the status of these systems should not be a manual job anymore.... [Read More]
Tags: Bluemix, Cloud Foundry, DevOps, Papertrail, Loggregator

Build your own Linkshortener API

In this post I’ll show you how to build your own Linkshortener microservice. If you are still wondering what a microservice is, check out my previous post Microservices! Micro.. what?. [Read More]
Tags: Java, Linkshortener, Microservice, REST

Microservices! Micro.. what?

You’ve probably heard the term, ahum buzzword, microservice quite a lot lately. I’ll quickly go over what this actually means. In in a series of future posts I’ll be building a microservice and see how we can facilitate continuous delivery for these services. [Read More]
Tags: Java, Microservice, SOA

Automating deployments on Windows with Jenkins and PsExec

Quite recently I got around to read Continuous Delivery, a book which I highly recommend to everyone since it is one of the best IT books I’ve read in a long while, and because of this book the technical and more importantly business value of automating everything for your delivery... [Read More]
Tags: Continuous Delivery, Jenkins, Maven, PsExec, Windows