Whats next with .net

Not vNext :

DNX .net X platform

Goals

What is vNext?
Why we need it
How it matters to you.
Example...

What is vNext

Its a new project alias for the next gen of .net.
Optimised for cloud web development
All open source
New CLR and compilers;
- Roslyn
- .NET Native
- Next Gen JIT

https://github.com/aspnet/Home

Why we need it

Because its new and its MSFT
Any questions?

No really why...

Severing ties with System.Web! :)
Moving to OWIN hosting model
Faster startup, lower memory / Higher throughput
No more DLL Hell
Modularising .NET
New CLR and Roslyn compiler brings performance improvements
Hosting on linux
...

OWIN - Open Web Interface for .NET

OWIN defines a standard interface between .NET web servers and web applications. The goal of the OWIN interface is to decouple server and application, encourage the development of simple modules for .NET web development, and, by being an open standard, stimulate the open source ecosystem of .NET web development tools.

owin.org

The goal is to decouple the web server and web application
Encourages the practice of adding only required modules to your application.

public void Configure(IApplicationBuilder app) {
            app.UseStaticFiles();
            app.UseWelcomePage();
            app.UseMvc();
            ...

No more DLL Hell! :)

Dependency versioning pain is the developers responsibility.

http://ripgac.net/




{
    "dependencies": {
        "Microsoft.AspNet.Mvc": "6.0.*",
        "Microsoft.AspNet.StaticFiles": "1.0.0-beta4"
    }
}

No shared assembly, simply reference the version you need and run $DNU restore

Seamless transition from on-prem to cloud

The same dependencies that are used on a developers machine will be references in a production environment.

Dependencies and frameworks are referenced via nuget packages.

How this helps you

No longer tied to MSFT.
- use your favorite IDE
- omnisharp.net
Grunt/ Gulp integration
- DNX gulp task
- VS file templates will scaffold
Portability
Open source brings a clear roadmap
Faster webdev with browser/ compiler hooks

var gulp = require('gulp'),
    aspnetk = require("gulp-aspnet-k");

gulp.task('default', function(cb) {
    return gulp.start('aspnet-run');
});

gulp.task('aspnet-run', aspnetk());

Frameworks?

MVC 5+, Web API 2, Web Pages 3, SignalR 2, EF 6
- Fully supported with Roslyn compiler
Breaking changes
- New Project layout
- No web.config
- MVC and Web API merge
- No System.web and a new lightweight HttpContext
- Identity Membership Provider
  - Its suggested you use oAuth or 3rd party credentials

{example}

DNU

The DNX Utility (dnu) tool is responsible for all operations involved with packages in your application.

{code}

dnu restore
dnu install <packagename>
dnu pack
dnu build
dnu list

Its effectively a nuget wrapper

You may recognise this

Node

npm install
npm uninstall
npm pack
npm update
npm rebuild
npm list

DNX

dnx . web
dnx . run

dnvm install
dnvm list
...

DNVM

.NET Execution

.NET Version Manager

Libuv - cross platform async IO Server

Kastro is the .NET webserver that was ported from Libuv