Lets assume we are designing a type that defines some lower and upper bounds. To keep this post simple, we define one rule: "You shall not be able to create an instance of it, with a lower bound exceeding the upper bound." Records & factory functions For this post we are OK with the fa…
Daniel Wertheim
Being event-driven and using event sourcing with an event store has become the new "factory, repository, entity, value object" which has put the wrong focus on DDD for years. What do I mean about this? Well, DDD has been around us for a while and I do believe one big issue with it is the a…
Daniel Wertheim
I started looking into F# last year and the switch from C# was easier than expected. In my case, I didn't just fire up Visual Studio (Code or Pro) to start fiddling. I started reading. And I thought I would share a list of resources I've appreciated during this journey.This post will be updated cont…
Daniel Wertheim
I just introduced my first F# based open source project dotnet-sqldb. It's a DotNet Global Tool, distributed via NuGet. It uses DbUp and Command Line Parser to offer a simple CLI for applying migration scripts etc. against a SQL-Server database. It started out as a C# project that I've been using in…
Daniel Wertheim
Being a developer today most likely means you have one or more accounts at different Git service providers, like: GitHub, Bitbucket, GitLab or Microsoft Azure DevOps. Personally, I have an account at several of these providers. And I'm also working as a contractor where, I sometimes have clients tha…
Daniel Wertheim