MAXIME LEMAITRE – 11/12/2014

asp.net vNextThe future of the Server

Agenda

• Before to start

• Let’s – create a new MVC project..

– open the project file …

– add a reference …

– add a nuget package …

– build a class library…

– build & publish the project…

– edit source code…

– add some configuration …

– add a web api …

– play with bower/gulp/grunt …

• asp.net core & project K

• Questions

Based on latest asp.net vNext version (Nov. 2014)

Let’s create a new MVC project …

What’s different ?• New sections

– wwwroot

– Dependencies

• New Solution structure– Src, artefacts, …

• New files– project.json

– global.json

– (package.json)

– (grunfile.js)

– (bower.json)

• Missing files/folders– MVC Content/Scripts/AppStart

– Web.config

– global.asax

Let’s open the project file …

What’s different ?

• K Project file is smaller– Where are references ?

– Where are source code files ?

– Where are X & Y ?

• A new project.json file– Project settings

– Dependencies & Frameworks

– Commands

– (but still no files)

Let’s add a reference …

What’s different ?

• No more direct dependencies

• No more GAC dependencies

• NuGet everything, even the runtime itself.

Dependencies are now defined in project.json

Let’s add a nuget package …

Let’s add a nuget package …• Brand New UI

• Version Selection

• Combined Installed/Online/Updates Workflows

• Version Consolidation

• Operation Previews

• Installation Options (Dep behavior & conflict action)

• Infinite Scrolling

• …

Let’s build a class library …

• New project type• Nuget packages “All the way”• Cross compiling (net40, net45,

aspnet, aspnetcore, …)• Can be built via command line

or VS

Let’s build & publish the project …

• What about the deployable package ?– the assemblies never exist on the disk

– the compiler do all the work in memory

Tip : > SET KRE_TRACE=1

• Same experience between command prompt and VS

• Cross-platform

Let’s edit source code …

vNext uses the Rosyln compiler to compile code dynamically. You will be able to edit a code file, refresh the browser, and see the changes without rebuilding the project.

No-compiledeveloperexperience !

Let’s add some configuration …

• No more .config file ! But a new lightweight model– Configuartion that works everywhere (Core & Full CLR)

– Configuration can be instantiated and initialized by the application

Tip : ConfigR may help… Program.cs

Project.json

Config.ini

Config.xmlConfig.json

Supports also command line arguments & environement variables !

Let’s add a web api …

• MVC, Web API, and Web Pages will be merged into one framework, called MVC 6– removes a lot of overlap between

the existing MVC and Web API frameworks

– uses a common set of abstractions for routing, action selection, filters, model binding, and so on

– use the framework to create both UI (HTML) and web APIs.

• No dependency to System.Web– leaner framework, with faster

startup time and lower memory consumption

Let’s play with bower/gulp/grunt …• VS 2015 Preview has built-in support for popular

package managers – Bower. Described as a “package manager for the

web,” Bower lets you install and restore client-side packages, include JavaScript and CSS libraries.

– Grunt and Gulp. Grunt and Gulp are JavaScript-based task runners.

– npm : npm is a package manager that was originally created for Node.js. Bower, Grunt, and Gulp all use npm.

• wwwroot folder– All of the static files (generated or not) in your

project go into this folder

Microsoft’s Special K

• KRE – K Runtime Environment is the code required to bootstrap and run an ASP.NET vNext application. This includes things like the compilation system, SDK tools, and the native CLR hosts.

• KVM – K Version Manager is for updating and installing different versions of KRE. KVM is also used to set default KRE version.

• KPM – K Package Manager manages packages needed by applications to run. Packages in this context are NuGet packages.

Read more here

Levels of abstractions

• The host application – in the past this was ALWAYS Microsoft Internet Information Server (IIS). This could be IIS, IIS with Helios, Katana, or some other OWIN capable host.

• The CLR framework – previously you would choose which version of the Microsoft.NET framework you wanted to use. This may be .NET 4.5.2, K runtime, or Mono.

• The Application Host – previously, this would be the W3C executable. Now, this can be a host for the Visual Studio designer, or the new Microsoft.Host.Runtime.

• Your Application – Your application now loads the former ASP.NET frameworks (MVC, WebAPI, or SignalR) as part of its dependencies.

Read more here

• New flexible and cross-platform runtime• New modular HTTP request pipeline• Cloud-ready environment configuration• Unified programming model that combines MVC, Web API,

and Web Pages• Ability to see changes without re-building the project• Side-by-side versioning of the .NET Framework• Ability to self-host or host on IIS• New tools in Visual Studio 2015• Open source in GitHub

Asp.net vNext Features

Read more here

Questions

Continue reading …

• http://www.asp.net/vnext/overview/aspnet-vnext

• http://channel9.msdn.com/Events/Visual-Studio/Connect-event-2014/011

• http://www.tugberkugurlu.com/archive/exciting-things-about-asp-net-vnext-series-the-ultimate-guide

• https://github.com/aspnet/Home/wiki

• https://github.com/aspnet/Home/wiki/KRuntime-structure

• http://www.hanselman.com/blog/IntroducingASPNETVNext.aspx

• http://stackoverflow.com/questions/25431750/asp-net-vnext-is-host-agnostic-what-does-it-deeply-mean

• http://channel9.msdn.com/Events/dotnetConf/2014/ASP-NET-vNext-101

• http://channel9.msdn.com/Events/Visual-Studio/Connect-event-2014/023

• http://jeremydmiller.com/2014/12/02/some-thoughts-on-the-new-net/?utm_source=twitterfeed&utm_medium=twitter

• http://gunnarpeipman.com/aspnet/

• http://www.omnisharp.net/

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