In the previous post, we understood the concept of Event Sourcing CQRS. Also, we made a plan for building a sample application using these concepts. We also discussed the tech stack for building such an application. Now, we need to implement Event Sourcing with Spring Boot Axon. Below is our Read more…
Event Sourcing CQRS is a popular pattern to build microservices architecture. In essence, these are two separate patterns. In other words, we can implement these patterns individually. However, in many use-cases, it becomes important to use Event Sourcing and CQRS in conjunction. In this series of posts, we will implement Read more…
We have come pretty far in our Saga Pattern Implementation in our last post. We have completed all the services that form a part of our Order Management Saga. Also, we have managed to start up an instance of the Axon Server and connect all our services to it. Now Read more…
This is the Part 3 of our Saga Pattern Implementation with Axon and Spring Boot series. We started to implement Saga Pattern in the previous post. To recap, below is the high-level plan we have been going through. In case you have directly come to this post, I strongly recommend Read more…
In the previous post in this series, we understood what is Saga Pattern. We also looked at the types of Saga Pattern implementation. Lastly, we also described the scenario we will implement using Saga Pattern. Below is our high-level plan for this series about Saga Pattern implementation. In Part 1, Read more…
Saga Pattern is a direct result of Database-per-service pattern. In Database-per-service pattern, each service has its own database. In other words, each service is responsible only for its own data. This leads to a tricky situation. Some business transactions require data from multiple services. Such transactions may also need to Read more…
Axon Framework is a Java microservices framework that helps you build microservices architecture in-line with Domain Driven Design (DDD) principles. Apart from DDD, Axon Framework also allows you to implement microservices patterns such as Command-Query-Responsibility-Segregation (CQRS) and Event-Driven Architecture. In this post, we try to understand how Axon Framework can Read more…
In the previous post, we explored the concept behind CQRS. We also discussed how a classic implementation of Event Sourcing and CQRS can look like. We will be using Axon framework for doing some of the heavy-lifting. In other words, to make our life easier. So let’s dive in. The Read more…
Event Sourcing and CQRS are two of the most important patterns for data management in a Microservices architecture. We talked about the various data management patterns for microservices in this post. In the next couple of posts, we will implement Event Sourcing and CQRS with Axon and Spring Boot. Here’s Read more…
In the previous post, we came pretty far in implementing Event Sourcing with Axon and Spring Boot. However, we still didn’t have a proper way of testing our application. In this post, we will take care of that. To do so, we would expose certain REST interfaces from our application. Read more…
