ASP.NET Core: The best of the new bits
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These slides provide an overview of .NET Core and also the changes to ASP.NET Core after the RC2 release. There is also some demos and source code. This talk was given at the Let's Dev This Roadshow in London, ON on May 26, 2016.
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ASP.NET Core: The best of the new bits
- 1. ASP.NET Core: The best of the new bits Ken Cenerelli
- 2. About Me Twitter: @KenCenerelli Email: Ken_Cenerelli@Outlook.com Blog: kencenerelli.wordpress.com LinkedIn: linkedin.com/in/kencenerelli Bio: Programmer Writer / Content Developer Microsoft MVP - Visual Studio and Development Technologies Microsoft TechNet Wiki Guru Co-Organizer of CTTDNUG Technical reviewer of multiple books CTTDNUG Ken Cenerelli
- 3. .NET Core First things first…
- 4. .NET 2016 – 10K foot view Next gen JIT (RyuJIT) SIMD Runtime Components Compilers .NET Compiler Platform (Roslyn) Languages innovation .NET Core 1.0 Libraries .NET Framework 4.6 Libraries NuGet packages .NET Framework 4.6 .NET Core 1.0 Full .NET Framework for any scenario and library support on Windows Modular libraries & runtime optimized for server and cloud workloads
- 5. About .NET Core • .NET Core is a subset of the .NET Framework • Many .NET Framework components are not in .NET Core • .NET Core is completely modularized. Each component is distributed via NuGet • Apps can be updated independently and do not rely on major framework releases • Deployment package includes everything needed to run • .NET Core will run on Linux, Windows, and OSX 5
- 6. Two parts of .NET Core •Runtime/Libraries: • CLR, libraries, compilers, etc. • Won’t change before RTM •Tooling: • Supports .NET Core and ASP.NET Core, including the new command line tools and bits that plug into Visual Studio & Visual Studio Code • Will change before RTM 6
- 7. Differences 7 Feature .NET Framework .NET Core Library Installation Centralised Distributed with each app Updates One big update. You better get your app ready Updates to framework are independent of app. Update NuGet packages when you are ready Platforms Windows is the only one for me I love everyone! Windows, OSX, Linux Base Class Library All the things! You get the entire BCL All the things! You get the entire BCL Credit: https://gooroo.io/GoorooTHINK/Article/16732/Introduction-to-NET-Core/22177
- 10. Visual Studio 2015 and ASP.NET Core: Support for npm, bower, gulp, grunt, etc. npm bower grunt gulp
- 11. Responsive and plug-in free http://bradfrost.com/blog/post/this-is-the-web/
- 12. Responsive and plug-in free http://bradfrost.com/blog/post/this-is-the-web/
- 13. Responsive and plug-in free http://bradfrost.com/blog/post/this-is-the-web/
- 14. ASP.NET Core
- 15. What about ASP.NET 5? • ASP.NET Core 1.0 was previously called ASP.NET 5 • It was renamed in January 2016 • You may still see it referred to as ASP.NET 5 in Visual Studio and in some docs • Was updated in latest ASP.NET Core Release Candidate 2
- 16. ASP.NET 4.6 and ASP.NET Core 1.0
- 17. ASP.NET Core 1.0 Roadmap https://github.com/aspnet/home/wiki/roadmap Milestone Release week Beta6 27 Jul 2015 Beta7 2 Sep 2015 Beta8 15 Oct 2015 RC1 Nov 2015 RC2 mid-May 2016 1.0.0 late-June 2016
- 18. .NET 2016 – 10K foot view Next gen JIT (RyuJIT) SIMD Runtime Components Compilers .NET Compiler Platform (Roslyn) Languages innovation .NET Core 1.0 Libraries .NET Framework 4.6 Libraries NuGet packages .NET Framework 4.6 .NET Core 1.0 Full .NET Framework for any scenario and library support on Windows Modular libraries & runtime optimized for server and cloud workloads
- 19. ASP.NET 2016 in a Nutshell .NET Framework 4.6 .NET Core 1.0 Full .NET Framework for any scenario and library support on Windows Modular libraries & runtime optimized for server and cloud workloads
- 20. ASP.NET Core 1.0 – Key Values Choose your Editors and Tools Open Source with Contributions Cross-PlatformOSS Seamless transition from on-premises to cloud Faster Development CycleTotally Modular Fast
- 21. ASP.NET Core ~ What is it? 21 • ASP.NET Core 1.0 is a console app • In RC1, an ASP.NET application was a class library that contained a Startup.cs class • As of RC2, an ASP.NET Core application is a .NET Core Console application that calls into ASP.NET specific libraries • So code that used to live in the ASP.NET Hosting libraries and automatically runs your Startup.cs now lives inside a Program.cs
- 22. ASP.NET Core ~ The features • Hosting • Kestrel, Startup • Middleware • Routing, authentication, static files, diagnostics, error handling, session, CORS, localization, custom • Dependency Injection • Configuration • Logging • Identity 22
- 23. ASP.NET Core ~ Which editors & IDEs? •Visual Studio 2015 Update 2 including Community •Visual Studio Code with C# extension •An OmniSharp-enabled editor: 23 • Atom • Emacs • Brackets • Sublime Text • Yeoman • Vim
- 24. ASP.NET Core ~ What can you do? •ASP.NET • MVC Web Apps in C# • Web API apps • Console apps • .NET Core compatible class library •Signal R and Web Pages are coming after RTM 24
- 26. ASP.NET Core MVC •One set of concepts – remove duplication •Web UI and Web APIs •Built on ASP.NET Core •Supports .NET Core •Runs on IIS or self-hosted •Deep integration with DI 26
- 27. OWIN (Open Web Interface for .NET) • OWIN in an open, community owned specification • OWIN defines pluggable middleware and hosting • ASP.NET 4.5 and ASP.NET Core 1.0 both support OWIN
- 28. Deployment portability •Two main models: • Portable Apps • Self-contained Apps 28
- 29. Portable Apps •Default application type in .NET Core •Require .NET Core to be installed on the target machine •Your application is portable between installations of .NET Core •No need to decide upfront which OSes your app will run on 29
- 30. Self-contained Apps •All app dependencies, including the .NET Core runtime, is part of the application •The app is larger, but also capable of running on any .NET Core supported platforms with the correct native dependencies •Need to make an explicit choice which platforms your application needs to run on during dev 30
- 31. Setting Portability • Portable: • Self Contained: • Target .NET Core libraries in project.json • Remove any "type": "platform" properties • Add a runtimes node in your project.json • • 31
- 32. Tooling Changes
- 33. What’s new in ASP.NET Core RC2? •.NET CLI (SDK) and IDE updates •Tag Helpers •IIS support baked in •Host RC2 apps in Azure App Service •Docker support with a new version of Docker Tools for Visual Studio 2015 33
- 34. ASP.NET Core SDK 34 •The .NET Core SDK includes enough software to build an app •The SDK gives you both the .NET Core Tools and a copy of .NET Core •https://www.microsoft.com/net/core#windows
- 35. Demo ASP.NET Core 1.0 from the SDK
- 36. ASP.NET Core IDE •The best way to develop with .NET Core on Windows is to download the Visual Studio official MSI Installer and the latest NuGet Manager extension for Visual Studio •https://www.microsoft.com/net/core#windows 36
- 37. Demo ASP.NET Core 1.0 from the IDE
- 38. TagHelpers: Evolution of HTML Forms • HTML helpers expressed as tags Ex. Instead of: @Html.LabelFor(m => m.UserName, new { @class = "col-md-2 control-label" }) Write this: <label asp-for="UserName" class="col-md-2 control-label"></label> • Easier to customize with more attributes • Work seamlessly with the HTML editor • Markup now looks like HTML and it comes with full IntelliSense
- 39. TagHelpers
- 40. Demo TagHelpers
- 41. What about Entity Framework? •EF6.x most current and runs on .NET Framework 4.6 •Entity Framework 7 renamed to Entity Framework Core 1.0 •EF Core is a new code base that does not inherit all the features and API surface of EF6.x •EF6.x will continue to be a supported for some time 41
- 42. When to use EF Core? •EF6.x will still be the most suitable choice for most applications •EF Core recommended for: • New applications that do not need features that are not yet implemented in EF Core • Applications that target .NET Core, such as Universal Windows Platform (UWP) and ASP.NET Core apps 42
- 43. Web APIs
- 44. In ASP.NET 4.6 – Separate Stack
- 45. In ASP.NET Core: API services are an ASP.NET Core feature
- 46. Microsoft /web® Sample Read-only Model and Controller
- 47. Microsoft /web® Read-only Controller Actions to return data
- 48. Routing a Web API
Notas del editor
- Session goals: Explain what will be covered for the day Explain four foundational topics everyone needs to be familiar with to get started Visual Studio 2015 ASP.NET Core (previously know as ASP.NET 5) Package Managers – what they are, how they fit in with ASP.NET Azure – easy to sign up, activate MSDN benefits
- NuGet is similar to Maven .NET Core RC2 is supported on the following platforms. Red Hat Enterprise Linux 7.2 Centos 7.1 Debian 8.2+ Ubuntu 14.04 (16.04 support is coming at RTM) Linux Mint 17+ OS X 10.11 Windows 7+ / Windows Server 2012 R2+ Windows Nano Server TP5
- - The .NET Foundation includes representatives from, among others, Microsoft, GitHub, and Xamarin.
- npm is the default package manager for the JavaScript runtime environment Node.js. Bower is a package management system for client-side programming. Grunt is a JavaScript Task Runner. Gulp is a JavaScript automation tool. If you are using VS 2015 and ASP.NET 5, Visual Studio will install npm and gulp for you automatically.
- Source: http://bradfrost.com/blog/post/this-is-the-web/ Images are under Creative Commons Attribution License
- Source: http://bradfrost.com/blog/post/this-is-the-web/
- Source: http://bradfrost.com/blog/post/this-is-the-web/
- Key message: Differentiate the purpose and scenarios between .NET Framework and .NET Core. They Key point on .NET Core is that it’s self-contained and specialized on specific workloads. Make sure that we make the point that BOTH are valid. There is no decrease in investment on the .NET Framework side. Transition. There is a common shared layer to these 2 pieces ASP.NET Core is a new open-source and cross-platform framework for building modern cloud-based Web applications using .NET. ASP.NET 4.6 is the more mature platform. It's battle-tested and released and available today.
- Totally Modular – opt into the files you want Faster Development Cycles – no more compilation needed, just save and refresh Cloud – Seamless to the cloud Cross Platform for Windows, OS, and Linux Tools – Cross platform editing with VS Code Open Source – Totally OSS and open for contributions Fast – One of the fastest frameworks on planet
- This alignment means that a single .NET toolchain can be used for both .NET Core Console applications and ASP.NET Core applications. It also means that customers have more obvious control over the code that hosts and runs their ASP.NET Core app.
- Kestrel is a managed web server Startup defines what you want in your pipeline Middleware is asynchronous; Can write your own DI is built-in but can use Auto-Fac or Ninject Configuration: No web.config; can read from other sources like JSON or XML Identity for OAuth
- OmniSharp is a family of Open Source projects, each with one goal: To enable a great .NET experience in YOUR editor of choice VSCode is also an OmniSharp enabled editor
- - Unified web stack
- This slide introduces these features at a high level. The demo for these features is included in the next section.
- Anything bolded is a tag helper Uses HTML attributes instead of C#
- 1. We’ve seen how ASP.NET provides a common core which supports several different toolsets. 2. [click for first animation] On the left side, we have tools which produce HTML, which will be viewed in browsers by people. 3. [click for second animation] On the right, we have Web API, which produces other formats which are consumed by machines (represented by this happy robot) – JSON, XML, and other custom formats which are read by JavaScript code, other programs, other servers, etc.