Spring dependency management

Managing dependency versions in a distributed system is a problem with many variables. While there’s no silver bullet that solves it easily, there are ways to approach dependency management that can simplify the problem. I use the following process to ensure version…

Tyson Gern

May 5, 2017

Configuring a Java application for local development

The third factor of the Twelve-Factor App methodology promotes storing configuration in the environment rather than in code. To ensure that our code runs correctly we must be able to run the same build artifact in each environment, which…

Tyson Gern

Nov 18, 2016

Spring OAuth authentication on PCF

We can use Spring Boot and Spring Security to create a web application that authenticates users against an OAuth2 provider. Just add spring-boot-starter-web and spring-cloud-starter-oauth2 to your build.gradle file:

Passing CSRF tokens with RestTemplate

Building on my previous post on passing auth headers with RestTemplate we are going to look at using the same approach to pass CSRF tokens in the RestTemplate call.

Testing Auth in Spring apps while using RestTemplate

Usually when you have auth in your Spring app the default for testing becomes MockMvc as most references are using it. I like to use RestTemplate and find it easier to use and test Spring applications. So here is a quick guide on how you…

Tyson Gern

Nov 18, 2016

Local service discovery with Ribbon

Using the service discovery pattern is a common way to manage interactions between applications and services in a distributed system. Spring Cloud Netflix includes Eureka and Ribbon to help implement this pattern. Users run a Eureka server that acts as a service…