Learn more ➡️ https://learn.microsoft.com/training/paths/aspnet-core-web-app/ ASP.NET uses a technique called "dependency injection" that's built right in. That lets us make classes called "services" that we can make available to any other classes in our website. Let's add a service now! Follow Scott Hanselman: https://twitter.com/shanselman Follow Leslie Richardson: https://twitter.com/lyrichardson01 Watch the entire series here: https://aka.ms/dotnet3-aspnet Download Visual Studio 2019 here: https://aka.ms/VisualStudio-dotnetconf19 Download .NET Core 3.0 here: https://aka.ms/Dotnet3 Learn more about ASP.NET: Create a ASP.NET Core Website: https://docs.microsoft.com/en-us/aspnet/core/tutorials/razor-pages/?view=aspnetcore-2.2&WT.mc_id=Educationaspnet-c9-niner What is ASP.NET? https://dotnet.microsoft.com/learn/aspnet/what-is-aspnet?&WT.mc_id=Educationaspnet-c9-niner Getting started with ASP.NET? https://dotnet.microsoft.com/learn/aspnet/hello-world-tutorial/intro?&WT.mc_id=Educationaspnet-c9-niner GitHub Repo ASP.NET: https://github.com/aspnet ContosoCrafts Repo: https://github.com/dotnet-presentations/ContosoCrafts JsonFileProductService code snippet: https://gist.github.com/bradygaster/3d1fcf43d1d1e73ea5d6c1b5aab40130#file-jsonfileproductservice-cs Startup.cs ConfigureServices() code snippet: https://gist.github.com/bradygaster/3d1fcf43d1d1e73ea5d6c1b5aab40130#file-configureservices-01-cs Follow us: Twitter: https://twitter.com/dotnet Facebook: https://www.facebook.com/Dotnet/ Blogs: https://devblogs.microsoft.com/dotnet/?WT.mc_id=Educationaspnet-c9-niner Shows and Podcasts: https://channel9.msdn.com/Shows/On-NET/?WT.mc_id=Educationaspnet-c9-niner Useful Links: Get your questions answered on the Microsoft Q&A for .NET - http://aka.ms/dotnet-qa​ Learn .NET with free self-guided learning from Microsoft Learn: http://aka.ms/learndotnet Learn .NET: https://dotnet.microsoft.com/learn?WT.mc_id=Educationaspnet-c9-niner .NET Community: https://dotnet.microsoft.com/platform/community?WT.mc_id=Educationaspnet-c9-niner .NET Documentation: https://docs.microsoft.com/en-us/dotnet/?WT.mc_id=Educationaspnet-c9-niner