I see the same two issues come up over and over with event sourcing — they cause a lot of pain and they shouldn’t have to. Most of the pain stems from bad modeling, specifically because of CRUD-Sourcing. In this post I want to show why long event streams usually mean you’re modeling the wrong events, and how to fix that so your streams have natural starts and ends. YouTube Check out my YouTube channel, where I post all kinds of content on Software Architecture & Design, including this video showing everything in this post. The common problem: long event streams Look… Read More »CRUD-Sourcing is why Your Event Streams Are Bloated

I ran into a nightmare of an issue recently because a service I use changed their email validation and decided my address wasn’t valid. In this post I want to walk through what happened, why simple regex for email validation often causes problems, and what you should do instead if you need to know whether an email actually exists. YouTube Check out my YouTube channel, where I post all kinds of content on Software Architecture & Design, including this video showing everything in this post. The problem: plus-addressing and overzealous validation If you use Gmail or many other providers, you might be… Read More »Regex for Email Validation? Think Again!