Alex Thissen

Building intuitive command-line interfaces in .NET

The cross-platform story for .NET continues. More and more tooling uses a command-line interface to make it easy to execute complex tasks from a script or console. Microsoft has invested in this area for their own tooling, such as the dotnet CLI or project Tye. You can benefit from their efforts by using System.CommandLine to build your own CLI or parametrize your application startup with arguments and options.
The Microsoft .NET libraries hold a number of great packages to create intuitive CLIs, with commands that have features such as suggestions with tab-completion and typocorrections.
In this session you will learn how to implement commands, with arguments and options, and leverage the build-in functionality such as binding, validation, middle-ware, command-hierarchies, parsing and much more. We are going to cover practical examples and use-cases, plus tips and tricks for efficient development and debugging.
After this session you can are ready to go and build CLIs for your own .NET applications and tooling with minimal effort.

Alex Thissen

Cloud buster

Alex is an application development enthusiast since the late nineties and works as an architect, lead developer and mentor at large enterprises and small companies. He spends his time teaching other developers the details of the Microsoft development platform and frameworks, and coaches architects to design and build modern distributed applications at cloud scale. He has received the Microsoft Most Valuable Professional award for Visual Studio and Development Technologies 15 times. In his spare time Alex likes to participate in all kinds of sport, and loves playing and programming new and retro video games.

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