Web APIs with Node.js for .NET developers

JavaScript - for a lot of developers it's the typical jQuery syntax "$(...)" creating spaghetti code. And then use JavaScript for some serious backend development? Node.js changed that a lot. The client-only view of JavaScript has ended. Node.js can be used to develop modern and lightweight web APIs using runtime advantages like asynchronous I/O and performance, without having to quit token authentication or database access.

GitHub: https://github.com/thinktecture/nodejs-aspnetcore-webapi/

Transcript

1. WEB APIS WITH JAVASCRIPT & NODE.JS FOR .NET DEVELOPERS Manuel Rauber thinktecture.com
2. INTRODUCTION Manuel Rauber manuel.rauber@thinktecture.com @manuelrauber https://manuel-rauber.com
3. TALKING POINTS Web APIs Node.js Restify Token Authentication Databases Examples
4. WEB APIS
5. WEB APIS - OVERVIEW
6. WEB APIS - OVERVIEW REST APIs, HTTP APIs, whatever APIs Model functional services with dedicated interfaces Can use several other services for data aggregation Secured by tokens Consumable by every client which can speak HTTP(S)
7. NODE.JS
8. NODE.JS IS NOT JQUERY IN COOL ;-)
9. NODE.JS - INTRO Server-side JavaScript powered by Chrome's V8 JavaScript Engine Asynchronous, event-driven I/O API NuGet-like package manager: Node Package Manager (npm) Cross platform: OS X, Windows, Linux Upcoming: alternative runtime Microsoft's ChakraCore
10. NODE.JS - FEATURE SUPPORT ECMAScript 6 Experimental ECMAScript 7 Classes Typed arrays Fat Arrow/Lambda Expressions Templated Strings
11. NODE.JS - ASP.NET CORE 1.0 Node.js ASP.NET Core 1.0 JS, TS, CS, ... Node Package Manager Dynamic types Single threaded Event Loop but async I/O threads C# NuGet Static types Multi threaded
12. NODE.JS - SERVER
13. NODE.JS - PROS Full stack JS development Universal JavaScript Same code on client and server Built-in streaming Open Source loving community Enterprise proven Paypal, Netflix, Groupon
14. NODE.JS - WATCH OUT Single threaded Event Loop Avoid heavy CPU usage via JS Utilizes one CPU only Scale via clustering Relational databases can be strange Code is documentation
15. RESTIFY
16. RESTIFY - OVERVIEW Node.js module to build Web APIs Middleware support (OWIN like) Client and server components Routing
17. RESTIFY - MIDDLEWARE c o n s t s e r v e r = r e s t i f y . c r e a t e S e r v e r ( ) ; / / R u n s b e f o r e . u s e h a n d l e r s s e r v e r . p r e ( ( r e q , r e s , n e x t ) = > { / * D o s o m e t h i n g * / } ) ; / / R u n s a f t e r . p r e h a n d l e r s s e r v e r . u s e ( ( r e q , r e s , n e x t ) = > { / * D o s o m e t h i n g * / } ) ; / / S a m p l e : U s i n g a p r e d e f i n e d m i d d l e w a r e s e r v e r . u s e ( r e s t i f y . b o d y P a r s e r ( ) ) ;
18. ASP.NET CORE 1.0 - MIDDLEWARE p u b l i c v o i d C o n f i g u r e S e r v i c e s ( I S e r v i c e C o l l e c t i o n s e r v i c e s ) { / / A d d a p r e d e f i n e d m i d d l e w a r e s e r v i c e s . A d d M v c ( ) ; } p u b l i c v o i d C o n f i g u r e ( I A p p l i c a t i o n B u i l d e r a p p , I H o s t i n g E n v i r o n m e n t e n v , I L o g g e r F a c t o r y l o g g e r F a c t o r y ) { / / U s e a p r e d e f i n e d m i d d l e w a r e a p p . U s e M v c ( ) ; }
19. RESTIFY - ROUTING / / H T T P G E T s e r v e r . g e t ( ' / h e l l o ' , ( r e q , r e s ) = > r e s . s e n d ( 2 0 0 , ' H e l l o W o r l d ' ) ) ; / / H T T P P O S T s e r v e r . p o s t ( ' / u p l o a d ' , s o m e M i d d l e w a r e ) ; / / H T T P P U T s e r v e r . p u t ( ' / c u s t o m e r / : i d ' , m i d d l e w a r e 1 , m i d d l e w a r e 2 ) ; / / H T T P D E L E T E s e r v e r . d e l ( ' / c u s t o m e r / : i d ' , a n o t h e r M i d d l e w a r e ) ;
20. ASP.NET CORE 1.0 - ROUTING [ H t t p G e t ( " h e l l o " ) ] p u b l i c I A c t i o n R e s u l t G e t ( ) { r e t u r n O k ( " H e l l o W o r l d " ) ; } [ H t t p P o s t ( " u p l o a d " ) ] p u b l i c I A c t i o n R e s u l t P o s t ( ) { } [ H t t p P u t ( " c u s t o m e r / { i d } " ) ] p u b l i c I A c t i o n R e s u l t P u t ( i n t i d ) { } [ H t t p D e l e t e ( " c u s t o m e r / { i d } " ) ] p u b l i c I A c t i o n R e s u l t D e l e t e ( ) { }
21. TOKEN AUTHENTICATION
22. TOKEN AUTH - OVERVIEW Securing resources (APIs) OAuth2 Protocol Simple & standard method for web, mobile and desktop applications OpenId Connect Identity Layer on top of OAuth2
23. TOKEN AUTH - NODE.JS Several node packages oauth2-server, oauth2orize, OpenIdConnect, node-oauth2-provider Currently no state-of-the-art package Implementation depends on the used package
24. TOKEN AUTH - ASP.NET CORE 1.0 State-of-the-art package IdentityServer4
25. DATABASES
26. DATABASES - NODE.JS Adapters for lots of databases NoSQL databases MongoDB, CouchDB Relational databases MSSQL, PostgreSQL, MySQL, Sqlite ORM: SequelizeJS Multiple databases, transactions, migrations, replication, query API
27. DATABASES - ASP.NET CORE 1.0 Entity Framework 7 Supports multiple databases MSSQL, Sqlite, InMemory, PostgreSQL Code First, Database First Migrations
28. LIVE DEMO
29. THANK YOU! GitHub repository https://github.com/thinktecture/nodejs-aspnetcore-webapi thinktecture.com
30. RESOURCES GitHub repository: Node.js: Node.js at Paypal: Node.js at Netflix: Node.js at Walmart: Restify: SequelizeJS: ASP.NET Core 1.0: Entity Framework 7: IdentityServer4: Angular 2: https://github.com/thinktecture/nodejs-aspnetcore-webapi https://nodejs.org/ https://www.paypal-engineering.com/?s=node http://techblog.netflix.com/search/label/node.js https://www.joyent.com/developers/videos/node-js-at-walmart- introduction http://restify.com/ http://sequelizejs.com/ https://docs.asp.net/ http://docs.efproject.net/ https://github.com/IdentityServer/IdentityServer4 https://angular.io/