Recently I solved a problem with a POST request that failed with a 405 error (Method Not Allowed), even though there was only a POST endpoint at the requested URL. After solving the problem, I found it interesting enough to reproduce it and wrote a post about it.
Posts about .NET
Mocks can be a helpful tool for replacing external dependencies in unit tests. However, caution is required when you embark on that route or you could end up with tests that don't really test your code under test.
ASP.NET Core applications are already set up with support for reading configuration files and switching between different environments. You get none of that when you create a new .NET console application. Fortunately, you can still take advantage of the same NuGet packages add similar support with minimum amount of setup code.
With the new System.Text.Json built into .NET Core, JSON serialization can now be performed without the Json.NET library. However, there are differences between the two libraries once you go beyond the basics. For example, support for serializing and deserializing polymorphic objects is limited in the new library.
Since the release of Roslyn, the complete C# compiler pipeline is available as a NuGet package and we can include it in our own application. I was wondering how difficult it would be to use it to compile some C# source code into an executable and run it.
Yesterday the NT Conference 2019 concluded in Portorož. This year I had three sessions there. On Tuesday, I talked about the new language features in C# 8. On Wednesday, I repeated my session about application architecture from this year's Global Azure Bootcamp. My final session on Thursday was about global tools in .NET Core.
Since this week, The Absolutely Awesome Book on C# and .NET is finally available for order in its final form: in all eBook formats and with the accompanying source code.
Tuples, as added to C# 7, can be a nice alternative to anonymous types in LINQ when you only want to return a subset of values from the queried type. Before tuples, this was only possible by creating an anonymous type in the Select method. Now you can create a tuple instead. However, if you try to do that with EF Core, the code won't compile. How come?
Cyclomatic complexity is a simple code metric, commonly used to identify complex methods which are difficult to maintain and therefore good candidates for refactoring. It is one of the five code metrics built into Visual Studio 2017, but it isn't available for .NET Core and .NET Standard projects. Let's look at third party extensions which you can use instead.
It's the week of NT Conference 2018. I had two sessions this year. On Tuesday, I talked about a selection of common C# gotchas which can surprise even an experienced C# developer. In my second session, I explained the benefits of continuous testing and showed how to configure it for a .NET Core project in Visual Studio 2017 and Visual Studio Code.
It's April again and last Saturday it was time for the annual Global Azure Bootcamp event. The Slovenian one was taking place at the local Microsoft offices. In my session, I explained how to configure Visual Studio Code to improve the experience of .NET Core development as much as possible.
The last Slovenian Developers User Group meeting before the summer break consisted of the two most popular sessions from Microsoft NT Conference, as voted by the user group members.
At the beginning of this week the traditional NT Conference was taking place in Portorož. I had my only session this year on Monday, where I talked about .NET Core and .NET Standard.
This week the second community organized Cancel conference was taking place in Ljubljana. It spanned over two days. Thursday was the main conference day with 20 sessions grouped in 4 tracks. On Wednesday afternoon preconf was organized at the premises of Microsoft Slovenia. I had my sessions on both days.