Tagged: CQRS

gifty – Architecture overview

Today’s post is going to shortly discuss entire architecture,  I’m going to implement in next three months. Since I’m not microservices master, some of my current decisions might be stupid or just not efficient. I so, please let me know...

CQRS/ES #5 Command Bus and Event Bus

All right, after a few short breaks, I’m finally ready to continue our journey, during which we discover Command Query Responsibility Segregation pattern along with Event Sourcing. In a previous part, we discovered the role of events and ES in...

CQRS/ES #4 Events and Event Store

So far we learned about the whole concept of Command Query Responsibility Segregation (CQRS) and Event Sourcing. We also implemented domain objects which Aggregate consists of, and we expressed user’s intentions using Commands executed by Command Handlers. Today we’ll discover...

CQRS/ES #3 Commands and Command Handlers

So far we got acquired with a theory that stands behind the CQRS and Event Sourcing. Moreover, we implemented a (business) heart of our calendar application consisting of a domain objects. Today we are going to reveal next two pieces of...

CQRS/ES #2 Domain objects

In the first part of our journey, we became familiar with CQRS and Event Sourcing. In this episode, we’re going to implement a few classes in our brand new system. Before we start let’s discuss a little bit about a business problem...

CQRS/ES #1 A bit of theory

Some time ago I announced series of posts related to the CQRS and Event Sourcing. Today we start our research journey! Generally speaking, why will we deal with this subject? So, I discovered that combo relatively late in my career...