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Event Sourcing in .NET - Dealing with projection exceptions
Transient vs non-transient exceptions If I have to name the single biggest flaw in adopting Event Sourcing, it must be our decision to rely on the synchronous dispatching pipeline of NEventStore. It is based on the idea that every event will be processed by all projectors in a synchronous manner....
Event Sourcing in .NET - Using an OR/M as a projection library
I thought we didn’t need OR/Ms anymore? A common advantage of adopting Event Sourcing is that it solves the impedance mismatch between object oriented code and the relation database model. And because of that, Object/Relational Mappers (OR/Ms) have become obsolete. While I agree with the first st...
Event Sourcing in .NET - Building fast autonomous projections
The characteristics of a great projection implementation Over the course of the last two years I’ve written numerous articles on the good, the bad and the ugly of Event Sourcing as well as on our experiences building and maintaining a distributed enterprise-class based on this increasingly popula...
Don’t blame the dependency injection framework
Over the last couple of months I’ve heard and read quite a few statements that say that Dependency Injection frameworks are bad things that you should avoid like the plague. In my opinion that’s just a result of rejecting something because it has been misused too long. Don’t get me wrong. I’ve be...
The Red Hot Developer - A model for removing distractions from your teams
When your project, product or component gets sufficiently big that it has a large impact on the rest of the organization, you’ll automatically get faced with lots of internal and external distractions. Other teams might want to get that pull request merged as soon as possible, all kinds of questi...
Fluent Assertions 5.0: The best unit test assertion library in the .NET realm just got better
It has been almost a year since version 4.19, the last functional release of Fluent Assertions was shipped. Not because of a lack of feature requests, but simply because this new version has cost me all the private time I had. My main goal of this release was to repair some of the design mistakes...