Visug session 3/9/2014 - ServiceStack & Nancy
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IT IS ABOUT PEOPLE! ServiceStack & Nancy Can they be of service? #VISUG
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Transcript of Visug session 3/9/2014 - ServiceStack & Nancy
IT IS ABOUT PEOPLE!
ServiceStack & NancyCan they be of service?
#VISUG
IT IS ABOUT PEOPLE!
Overview
IntroServiceStack
The philosophyThe frameworkDemo: A ServiceStack example
NancyThe philosophyThe frameworkDemo: A similar Nancy service
Comparison & ConclusionQuestions
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Who is this Hannes Lowette guy?
.Net consultant @ AxxesLives in Mol – For you city folk: this is not Limburg
Born in Hasselt – This is Limburg
25 years old – Or 00010000
Father of 1,75 kids
Likes: Duplo, Poker, Absinthe, Whisky & Guitars(amongst other things)
[email protected]/in/hanneslowette/
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A history of service frameworks in .NET
ASMXActive Server Method FileHeeft IIS nodigEnkel HTTP (SOAP 1.1 & 1.2)Vanaf .Net 1.1
WSEWeb service extensionsWS-* standaarden in ASMXSOAP en RESTSecurity
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A history of service frameworks in .NET
WCF (introduced in .Net 3.0)WCF = “Services done right”
Volledig uitbreidbaar en aanpasbaar
CompatibiliteitVeel WS-* standaarden reeds geïmplementeerd
FlexibelTransport (HTTP, TCP, MSMQ, …)
Format (SOAP, REST, JSON, …)
Onafhankelijk van IIS
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A history of service frameworks in .NET
ADO.Net Data Services (Astoria)AtompubRESTLater Odata
WebAPIRESTDecent content negotiationMVC-like ControllersStill depends on IIS
ServiceStack & Nancy tried to fill the gap
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SERVICESTACK
Simplicity at Speed.
One framework to power them all
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What is ServiceStack? – The Service
“One size fits all” service framework:
SOAP, REST & MQ type services
Multi-format: XML, JSON, CSV, JSV, …
Razor view engine
An alternative to WCF, WebAPI and MVC
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What is ServiceStack? – The Stack
ORMSerializersFiltersLoggingClient FrameworkCachingAuthenticationRedis Client…
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The philosophy
1 operation = 1 Request DTO (philosophically)
SimplicityPOCO (Code First) approachConvention basedFocus on core logicMinimize configuration
Let the developer think about the logic, not the transport
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The philosophy (2)
Speed
Every part is written or chosen for speed
Use of conventions to increase performance
Simplify things for added speed
Every part of the stack is important,from the ORM to the serializers
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Server Architecture
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Client Architecture
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Client Architecture (2)
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Demo time
Remember this?
“Plug & play”
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NANCY
A lightweight, low-ceremony, framework for building HTTP based services
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.Net port of Sinatra
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The Philosophy
The Super-Duper-Happy-Path (SDHP):
It just works
Easily customizable
Low ceremony
Low friction
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The Framework
100% route-based
Choice of serializers:
Nancy, Newtonsoft, ServiceStack, …
Choice of View Engines:
Razor, Handlebars, Spark, …
Choice of hosting environments:
ASP.NET, OWIN, Self-hosted, Mono, …
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Nancy app in a tweet
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Demo time
Think they learned?
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Url Patterns (1/2)
Literal segment (10000)/some/literal/segments exact match
Capture segment (1000)/{name} catures a portion of the route
Optional capture segment (1000)/{name?}
Optional capture segment with default (1000)/{name?unnamed} what comes after the ? is the default
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Url Patterns (2/2)
RegEx segment (1000)/(?<age>[\d]{1,2}) named group capture, if needed
Greedy Segment (0)/{name*} matches everything from this / forward
Greedy RegEx Segment (100) /^(?<name>[a-z]{3,10}(?:/{1})(?<action>[a-z]{5,10}))$ Always starts with ^ and ends with $
Multiple Captures Segment (100)/{file}.{extension} (2 captures)/{file}.ext (capture & literals)
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Action return valuesReturn value Interpreted as …
int HTTP status code
HttpStatusCode (enum) HTTP status code (duh!)
string Response body
Action<Stream> Stream writes the response body
Anything else Content negotiation
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Route conditions
Func<NancyContext, bool>Post["/login", (ctx) => ctx.Request.Form.remember] = _ => {
return "Handling code when remember is true!";}
Post["/login", (ctx) => !ctx.Request.Form.remember] = _ => {
return "Handling code when remember is false!";}
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Route segment constraints
Get["/intConstraint/{value:int}"]int, decimal, guid, boolalpha (only alphabetical chars)datetime, datetime(format)min(minimum), max(maximum), range(minimum, maximum) (integer values only)minlength(length), maxlength(length), length(minimum, maximum)Custom …
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Locating Views
ViewName (from returned type)Tournament Tournament.cshtmlTournamentModel Tournament.cshtml
Locations://Views/Views/ModulePath/ModulePath/ModuleName/Views/ModuleName
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WRAPPING THINGS UP
Because we’d like to get to the beer…
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Comparison
ServiceStack Nancy+ Multiple protocols+ Focus on DTO objects+ Focus on speed+ Queue support+ Client packages
- From v.4: €€€- Lots of DTO objects
Components easily interchangeable +Focus on developer happiness +
Does REST extremely well +Different View Engines +
Focus on routes +
Nancy attributes in Data -Route discipline -
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Conclusion
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The End … or nearly so
First … Questions
Then … Drinks next door @ De Kaai
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