In this first step implementing event-driven integration between services, we’ll hook-up into EF Core’s infrastructure, namely when saving changes, to infer if any event should be raised based on the information provided by the change tracker.

April 20, 2020

As we start implementing event-driven integration, the first thing we need to do is publish the events. Although it might seem straightforward, there are some important things to consider in order to make it work reliably. In this episode, we discuss the challenges and introduce the transactional outbox pattern to help us facing these challenges.

April 13, 2020

In this episode, we take a look at the integration problem we have between services right now, go through some options to avoid or fix it, then have a quick overview of the solution we’ll be implementing in the coming episodes.

April 5, 2020

Following up on the last episode about the Optional type, we continue taking inspiration from functional languages and introduce Either and Error types, as a way to make the possible business logic outcomes more explicit and minimize using exceptions in non-exceptional situations.

March 2, 2020

In this post, we’ll make use of a concept most commonly associated with functional programming, the Optional type (aka Option or Maybe), in order to make our code safer and more explicit when expressing a lack of value, instead of leaning on the null reference, something that I’m sure has burned us many times in the past.

February 17, 2020

In this episode, we’ll make things more object oriented, by moving some logic that’s present in the request handlers, which in fact should be present in the domain entities, that currently are just bags of data with public getters and setters.

February 6, 2020

This past week I had the opportunity to attend Building the Future 2020, an event focused on digital transformation, so I thought about sharing some of the main topics that stuck with me.

February 4, 2020

In this episode, we’ll take a look at (yet) another approach to organizing data access code, very likely overkill.

January 20, 2020

In this episode, we’ll take a look at segregating our application use cases in dedicated classes instead of shoving everything into the same service class.

January 10, 2020

In this episode, we’ll take a look at redesigning an API that has been developed in a traditional layered way, moving to a more interesting onion/hexagonal/ports and adapters architecture (which is apparently very fashionable right now in .NET land).

December 20, 2019