Pro ASP.NET SignalR: Real-Time Communication in .NET with SignalR 2.1

By Keyvan Nayyeri

ASP.NET SignalR is the recent option to real-time communique among servers and consumers in .NET. Use it to push new info to an internet web page or cellular gadget once it turns into to be had, no matter if it’s a notification, dwell chat, up to date monetary info, or a number of different intriguing functions. techniques like Google dwell seek and reside fb and Twitter updates are pushing clients’ expectancies of the real-time net. With Pro ASP.NET SignalR, you could subscribe to this revolution and study talents that might be useful for years to come.

Pro ASP.NET SignalR begins with an advent to the real-time internet. know about the applied sciences underlying the SignalR library, comparable to WebSockets and long-polling, and the way SignalR elegantly flips among them counting on the features of the buyer. subsequent, meet the suggestions of hubs and protracted connections and the way to exploit them to construct the parts of an ASP.NET SignalR software. the right way to expand, try out, debug, configure, scale, and host your functions, and the way to focus on a number consumers, together with home windows and iOS.

The e-book rounds off with case studies—a inventory industry rate updater, and a collaborative drawing application—so you will get to grips with SignalR in a pragmatic state of affairs, utilizing a extensive diversity of the strategies lined in previous chapters.

As real-time updates to internet and cellular apps develop into the norm, Pro ASP.NET SignalR should be your in-depth, one-stop spouse to this new and intriguing technology.

What you’ll learn

  • The proposal of hubs and hub proxies, and the way to exploit them to construct SignalR functions quick and simply
  • The thought of power connections and the way to exploit them to construct extra complex SignalR functions
  • Debugging SignalR functions
  • Configuring and scaling SignalR purposes
  • Hosting SignalR purposes on home windows Azure
  • How to use a majority of these options to a true ASP.NET or home windows shop app

Who this e-book is for

This booklet will swimsuit specialist ASP.NET builders conversant in C#, IIS and JavaScript.

Table of Contents

Chapter 1: creation to the Real-Time internet and ASP.NET SignalR

Chapter 2: review of SignalR

Chapter three: constructing SignalR functions utilizing Hubs

Chapter four: operating with chronic Connections

Chapter five: Debugging and Testing

Chapter 6: SignalR Clients

Chapter 7: Extending SignalR

Chapter eight: Configuration and Security

Chapter nine: construction a inventory marketplace fee Updater

Chapter 10: construction a Collaborative Drawing Application

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Inheriting from the TransportManager type doesn't give you the performance for exchanging the default transports. So for this substitute implementation, enforce the ITransportManager interface and supply the good judgment for choosing the right kind delivery in response to the client sort. For a concrete instance, we enforce the IUserIdProvider interface with a customized type. The default implementation is the PrincipalUserIdProvider category, which supplies a person identity from the identify estate of the user’s id supplied within the request.

Four. Open the Startup. cs dossier that was once further via the NuGet command. five. upload app. MapSignalR(); to the category, as proven in directory 6-13. directory 6-13. Startup category that Configures the SignalR Server [assembly: OwinStartupAttribute(typeof(Chapter6. HubServer. Startup))] namespace Chapter6. HubServer { public partial category Startup { public void Configuration(IAppBuilder app) { ConfigureAuth(app); app. MapSignalR(); } } }   6. Create a brand new folder for the hubs. 7. Create the 3 periods indexed in directory 6-14. 114 Chapter 6 ■ an summary of the consumers that aid SignalR directory 6-14.

Web, you could learn Apress professional Asynchronous Programming in . internet (ISBN 978-1430259206). the single attainable sequences of those occasions are OnConnected -> OnReconnected -> OnDisconnected or OnConnected -> OnDisconnected, and it truly is most unlikely to have OnConnected -> OnDisconnected -> OnReconnected for a shopper. observe that below specific conditions, OnDisconnected may not be called—when the applying is recycled, for instance. Context ASP. internet SignalR must supply a few information regarding the context of software execution (similar to the HttpContext item in ASP.

Web C# PersistentConnection Registration in Configuration Code app. MapSignalR("/SamplePC");   6. Create a PersistentConnections folder. 7. upload a brand new category to the PersistentConnections folder known as SamplePersistentConnection. eight. replace the category to appear like directory 6-12. 113 Chapter 6 ■ an outline of the consumers that help SignalR directory 6-12. . web C# PersistentConnection pattern Code public type SamplePersistentConnection : PersistentConnection { protected override approach.

Web SignalR to familiarize yourself with primary techniques and the advance technique. thirteen Chapter 2 assessment of SignalR whilst studying a brand-new code library, chances are you'll before everything imagine that it's nice and you'll use it for each venture going ahead. even supposing occasionally the hot library will paintings on your most up-to-date undertaking, it's not really the easiest answer. This bankruptcy discusses the applied sciences on which ASP. web SignalR is equipped. those are the applied sciences that allow SignalR to aid quite a lot of server and purchaser structures.

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