nodejs for .net web developers

Ugo Lattanzi

NodeJs for .NET Web developers and Viceversa:

Meet the Dark Side of development

Head of Technologies at Gaia (http://gaia.is.it)@[email protected] http://tostring.it

MILAN november 28th/29th 2014 - @imperugo

http://gaia.is.it

mailto:[email protected]

MILAN november 28th/29th 2014 – Ugo Lattanzi

What is node?

Node.js® is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-

driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across

distributed devices.


What can I do with Node?

Http, Networking, Websocket but also an helpful tool for developers


Why is so cool?is javascript

is fast

optimised (low resources)

runs everywhere


…but is also for nerd!


everybody love it …

Ted Dziuba defined “Node Js a cancer”

http://teddziuba.com/2011/10/node-js-is-cancer.html

(post removed)

http://teddziuba.com/2011/10/node-js-is-cancer.html


Node vs .NETIIS => Node.exe

C# / VB => Javascript

NuGet => npm

ASP.NET WebForm => Express + EJS

ASP.NET MVC => Express + Vash

ASP.NET WebAPI => Express

SignalR => Socket.io

http://ASP.NET

http://ASP.NET

http://ASP.NET


Visual Studio addicted?

don’t worry, there is a free and open source plugin (NTVS) that turns Visual Studio into a Node.js IDE

http://nodejstools.codeplex.com/

NTVS supports Editing, Intellisense, Profiling, npm, TypeScript, Debugging locally and remotely (Windows/MacOS/Linux), as well Azure

Web Sites and Cloud Service.

http://nodejstools.codeplex.com/


Async


Async

http://www.toptal.com/nodejs/why-the-hell-would-i-use-node-js

http://www.toptal.com/nodejs/why-the-hell-would-i-use-node-js


Async


Let’s start


npm init

npm install express —save

npm install vash —save

express.js


package.json is the same thing of packages.config in nuget and npm install restore the missing packages

express.js


express.js


express.js / aspnetControllers

Model

Views

public ??


express.js


vash (@razor)

Vash is a template engine that offers a swift flow between code and content using Razor Syntax

it supports master pages, partial, helpers and so on

it isn’t a porting of Razor View Engine but is very similar

the file extension for the views is .vash


vash (@razor)


vash (@razor)

partials are simple html files into the view folder

to include a partial into your view is enough to use

@html.include(‘name_of_the_partial’)


vash (@razor)


How to manage 404 and 500?

add your view to the end of routing :-)

express.js


express.js


It’s very similar to render view but without the render command :)

express.js (API)


express.js (API)


there aren’t data annotation so the validation is “impractical” than .net

express-validator is a cool middleware for Express.Js that helps you to validate input data

npm install express-validator —save

express.js (validation)


express.js (validation)


express middleware

npm install body-parser —save

npm install compression —save

npm install cookie-parser —save

npm install express-mailer —save

npm install express-session —save


database

of course you can use MS Sql Server (npm install mssql —save)

but

MongoDb “could be better” with Node (npm install mongoldb —save)


database


edge.js

An edge connects two nodes. This edge connects Node.js and .NET. V8 and CLR/Mono - in process. On Windows, MacOS, and Linux.


edge.js


Node vs .NET

C# => NodeJs

F# => NodeJs

Python => NodeJs

TSQL => NodeJs

Powershell => NodeJs


slide and demo

http://tostring.it (next days)


Q/A

nodejs for .net web developers

Technology