Ivan Barlog

As always here are some links which I found interesting and I want to share with the world.

In this article I will show you how to implement simple cron job processing using AWS Lambda and EventBridge Scheduler. We'll also look into most common problems you can hit and compare 3 different approaches of how to solve them.

I always thought that CDK is just a fancy CloudFormation template generator. That's why I recently proposed to one of my clients to generate parametrized CloudFormation template for their simple use-case in CDK. Boy was I naive.

I have 100+ tabs open in my mobile browser all the time. I use it as read list eg. whenever I see something interesting which I don't have time to read at that moment, I just open it as new tab and leave as is. Once in a time I get so frustrated by the sheer quantity of the tabs that I want to just want to close my eyes and hit "Close all" button.

Then I remember that this habit of mine once served a real purpose - I've been hoarding articles for the company's newsletter. And then suddenly I don't want to close those but I want to pick few and send them to someone who might find it interesting to read it.

In this article I am going to try to explain how much compute cost at AWS. I will compare three options: EC2, Fargate and Lambda.

Last year AWS announced that you can use Egress-only Internet Gateway to route the traffic out of VPC without need for NAT Gateway. For free. The only gotcha is that it needs to be IPv6 traffic.

This way you can finally stop paying for NAT Gateways - if you communicate through IPv6 of course.

In this article we'll go over 3 simple things you can start doing today which have potential to significantly improve your code base.

Node.js 24 runtime is available on AWS Lambda from 25th November 2025. It removes support for callback-based function handlers. In this article I will go through things which you should know before you upgrade your runtime.

First of all, a big shout out to Martin Damovsky for providing re:Watch service where you can rewatch all the sessions from re:Invent 2025.

Two weeks ago I've published Lambda Bun Runtime and Lambda Keep Active CDK constructs which you can download and install from npm. I've also written about those in their respective articles.

Since there is strong community build around Constructs Hub I wanted my constructs to be available there as well. Unfortunatelly for me you need to use projen in order to be picked up by Construct Hub. So I have converted my repositories to projen repositories. This article is about my thorny path.