In January 2025, I renewed my AWS Developer Associate certification, which I first obtained in December 2020. My initial attempt resulted in a near-perfect score of 973/1000 – arguably higher than necessary to pass the exam, which is about 720. This ...
When I first encountered snapshot tests, I was skeptical. The concept seemed strange, and their benefits weren't immediately obvious. But after experiencing their value firsthand, I've become a convert – and here's why I think you should give them a ...
Nowadays trunk-based development as a branching model is preferred compared to something like Git Flow. But creating a CI/CD pipeline is more challenging since we deploy to every environment from the same branch. In this post, I create a CI/CD pipeli...
It is quite common to need a secret value of some kind in a Lambda function. Either for a database connection, a 3-rd party service, or whatever else. But how to securely use secrets in your Lambda? In this post, I am going to tell you why environme...
CDK Aspects Introduction CDK Aspects are a powerful tool provided by the AWS Cloud Development Kit (CDK). They are utilizing the Visitor Pattern. By applying a CDK Aspect to a specific scope, you get access to every child node within it. You can insp...
Things are confusing when you are just starting to use AWS. You don't just create an account and get started as you do with other services. You come across terms like "Account", "User" and "Root User" and maybe ask yourself how they differ. This post...
I just recently tweeted my favorite tech stack for 2022 (inspired by Jon Meyers tweet). I'd like to share some more thoughts about my choices in this post. https://twitter.com/JannikWempe/status/1473935933447839748 Frontend First of all: I love front...
Running arbitrary code on a schedule is a very common use case. A common way of doing that is by using cron jobs. But how would you do that in the cloud (specifically AWS) without having to run a Linux instance or something similar? What We Are Going...
I recently set up an AWS organization to follow the best practice to use a multi-account environment (read "Why should I set up a multi-account AWS environment?"). That was quite easy using Control Tower, which sets up an organization with some accou...