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Event Sourcing

Event Sourcing 101: Terminology & Concepts

What is event sourcing? Many terms are often used that can be pretty confusing. I will explain the core concepts and, specifically, Event Sourcing terminology so you can better understand what it is and what some of the benefits might be. YouTube Check out my YouTube channel, where I post all kinds of content accompanying my posts, including this video showing everything in this post. Events At the heart of event sourcing are events. Events are statements of fact. Events are records of things that have happened within your system and your domain. They represent facts that provide insight into the state… Read More »Event Sourcing 101: Terminology & Concepts

Greg Young answers your Event Sourcing questions!

I asked you for your questions about Event Sourcing and CQRS. I took some of those questions to Greg Young for answers about frameworks, Legacy Systems, Use Cases, Projections, Eventual Consistency, and Versioning. YouTube Check out my YouTube channel, where I post all kinds of content accompanying my posts, including this video showing everything in this post. Makes sure to watch the video for all of Greg’s answers. I will put some thoughts together about each of the questions that people on YouTube, Patreon, and Discord asked. Frameworks Greg has mentioned that he doesn’t think that CQRS requires a framework. I agree… Read More »Greg Young answers your Event Sourcing questions!

Domain Events in Event Sourcing? Not Exactly!

What are domain events for? Domain Driven Design and Event Driven Architecture are nothing new, but they continue to become more popular. Unfortunately, some concepts and terms get a bit murky as they do. Specifically, the term domain events have caused a bit of confusion. I will clarify a misconception about the role and purpose of domain events and how that relates to Event Sourcing. Or does it? YouTube Check out my YouTube channel, where I post all kinds of content accompanying my posts, including this video showing everything in this post. Event Sourcing As a primer on Event Sourcing, it’s a… Read More »Domain Events in Event Sourcing? Not Exactly!