Alberto Corrales Garcia

Introduction to Event Sourcing and CQRS The fundamental idea of Event Sourcing is ensuring that every change to the state of an application is captured in an event object, and that these event objects are themselves stored in the sequence they were applied for the same lifetime as the application state itself. (For more information about Event Sourcing I recommend this post written by Martin Fowler ). Based on my experience working with Event Sourcing, having the sequence of events allows you to perform awesome functionalities, like time travelling or replaying your events into multiple storage technologies. However, it can be tricky for some scenarios. To explain this better, I need to introduce Event Sourcing working together with Command Query Responsibility Segregation (CQRS). If you are not familiar with CQRS, the idea behind it is splitting commands (write operations) from queries (read operations), so they can work independently. (more info about CQRS in this post ). CQRS an...

  Introduction If you are working with Microservices, you might have noticed that you are repeating over and over the scaffolding for your new microservices. In order to make easier the creation of new microservices, you can build your own custom dotnet core template . Apart from saving time, building a custom template will help to promote good practices, a proper architecture, right dependencies, etc. With this purpose, I have built my custom template, so it can help us to create easily new microservices based on CQRS and DDD, without having to build the same scaffolding each time we have to create a new service. Microservice architecture In microservices architecture, each service can be different, according to the problem it has to solve. However, it is likely that you have a reference architecture that will provide some consistency and it will promote good practices. In our case, the main patterns that drive our microservice architecture are Domain Driven Design (DDD) and Comma...