MVC 6 - the new unified Web programming model
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Presentation for Dutch Microsoft TechDays 2015: With ASP.NET 5 comes MVC 6 with a programming model that unifies Web Pages, MVC and Web API. Each of these has been rebuilt to reflect Microsoft's vision of lean and composable web applications. In this session you will see the changes that have been made to the programming model. We will cover topics such as the new POCO controllers, View Components, dependency injection and much more. Plus, you are going to see the significant changes to the ASP.NET runtime on which MVC 6 is built.
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MVC 6 - the new unified Web programming model
- 2. Alex Thissen Lead Consultant Xpirit ASP.NET MVC 6 A new unified programming model for the web
- 3. Agenda • Short overview ASP.NET 5 • A unified programming model • Controllers • Dependency Injection • Routing • Summary • Questions and Answers
- 4. An overview Viewing from 10.000 feet
- 5. ASP.NET components MVC 6 Unified Web Stack
- 6. Characteristics of MVC 6 •One set of concepts – remove duplication •Web UI and APIs combined •Smooth transition from Web Pages to MVC Unified •Run on IIS or self-host or cross-platform •Based on new request pipeline in ASP.NET 5 •Runs in cloud-optimized Core CLR Built on top of ASP.NET 5 •Pay as you use •Middleware •Built with Dependency Injection first Modular Getting familiar
- 7. .NET Framework vNext Full .NET CLR • Entire API set in machine wide install at 200 MB • Updated with OS • Ecosystem of existing packages • Backward compatibility • Default for Visual Studio 2015 projects Cloud Optimized CLR • Lean and modular runtime • Optimized for server • Small memory footprint • Libraries in NuGet packages • Framework deployed with app • Different versions can run side-by-side • 11 MB Mono • Cross-Platform runtime for Linux and Mac OS X • Together with Mono community Standing on the shoulders of a new giant ASP.NET 5.0 ASP.NET 5.0 ASP.NET 5.0
- 8. Getting started • Middleware model introduced by OWIN Ready, set, start – a lap around MVC 6
- 9. Middleware conceptually • Middleware stack • Static files • Security, authentication, CORS • Diagnostics, logging • Other cross-cutting concerns Host process and server Application and framework RequestDelegate delegate Task RequestDelegate(HttpContext context);
- 10. public void Configure(IApplicationBuilder app) { app.Map("/Nancy", builder => { builder.UseRuntimeInfo(); builder.RunNancyFx(); }); app.UseCors(); app.UseMvc(cfg); Use, Map and Run app.UseErrorPage(); Application FX Middleware
- 11. Controllers • Single base class for MVC and Web API • Not required • POCO Controllers • No base class • Combine Web API and MVC in 1 class • UI and REST endpoints at one base URI Not your typical gaming gear
- 12. Dependency Injection It all depends
- 13. Dependency Injection • DI is core part of runtime • Built-in DI for configuration and services – Default lightweight version available • Wire up your own favorite IoC container ... – Autofac, Ninject, StructureMap, Unity, Castle Windsor public void ConfigureServices(IServiceCollection services) { // Add EF services to the services container. services.AddEntityFramework(Configuration) .AddSqlServer() .AddDbContext<ApplicationDbContext>();
- 14. Built-in DI Container • Register mappings in ConfigureServices of Startup • Default registrations • Lifetimes – Transient – Scoped – Singleton – Instance • Rules for registering mapping – First one wins – Allows you to get ahead off default mappings Sometimes better is worse than good enough
- 15. Activation Activation method Example Constructor on classes MyController(ILog logger) Attribute on field or property [Activate] ILog Logger { get;set; } Attribute in action [FromServices] ILog logger Directive in Razor page ILog logger Inject those objects @inject
- 16. Tag Helpers • Allow server-side code to participate in rendering of HTML elements in Razor files • Target HTML elements based on element and attribute names • Reduce explicit transitions between HTML and C# • Take advantage of composition and tooling benefits in Visual Studio Code and 2015 Getting some help in Razor
- 17. Custom Tag Helpers namespace TechDays.TagHelpers { [TargetElement("datumtijd")] public class DateTimeTagHelper : TagHelper { public override void Process(TagHelperContext context, TagHelperOutput output) { output.Content.SetContent(DateTime.Now.ToString()); } } } // Inside Razor .cshtml file @addTagHelper "*, TechDays.TagHelpers"
- 18. Routing • Familiar MVC 5 attribute based routing • Enabled by default • Special tokens: [controller] and [action] Show me the way [Route("api/Hello")] public class HelloController : Controller { [Route] public string Get() { return "hello"; } } [Route("api/[controller]")] public class HelloController : Controller { [Route] public string Get() { return "hello"; } }
- 19. View components • Comparable to Web Forms’ UserControls • Different from Partial Views • Combines code and view as logical unit User controls in MVC style
- 20. Logging • Pluggable logging infrastructure provided • ILoggerFactory • Logging levels – from Debug up to Criticial
- 21. Summary • Unified programming model • Built on ASP.NET 5 • Learn Dependency Injection • Command-line vs. Visual Studio Key takeaways from ASP.NET MVC 6
- 22. Your feedback is important! Scan the QR Code and let us know via the TechDays App. Laat ons weten wat u van de sessie vindt! Scan the QR Code via de TechDays App. Bent u al lid van de Microsot Virtual Academy?! Op MVA kunt u altijd iets nieuws leren over de laatste technologie van Microsoft. Meld u vandaag aan op de MVA Stand. MVA biedt 7/24 gratis online training on-demand voor IT- Professionals en Ontwikkelaars.
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