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

By Keyvan Nayyeri

ASP.NET SignalR is the recent technique to real-time verbal exchange among servers and consumers in .NET. Use it to push new info to an internet web page or cellular equipment once it turns into on hand, even if it’s a notification, reside chat, up to the moment monetary info, or a number of different fascinating purposes. techniques like Google dwell seek and dwell fb and Twitter updates are pushing clients’ expectancies of the real-time internet. With Pro ASP.NET SignalR, you could sign up for this revolution and research talents that might be precious for years to come.

Pro ASP.NET SignalR starts off with an advent to the real-time net. know about the applied sciences underlying the SignalR library, equivalent to WebSockets and long-polling, and the way SignalR elegantly flips among them looking on the features of the buyer. subsequent, meet the ideas of hubs and chronic connections and the way to take advantage of them to construct the elements of an ASP.NET SignalR program. the best way to expand, attempt, debug, configure, scale, and host your functions, and the way to focus on a number of consumers, together with home windows and iOS.

The publication rounds off with case studies—a inventory marketplace fee updater, and a collaborative drawing application—so you will get to grips with SignalR in a pragmatic situation, utilizing a extensive diversity of the suggestions lined in past chapters.

As real-time updates to internet and cellular apps develop into the norm, Pro ASP.NET SignalR could 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 take advantage of them to construct SignalR functions speedy and simply
  • The inspiration of continual connections and the way to exploit them to construct extra complex SignalR functions
  • Debugging SignalR purposes
  • Configuring and scaling SignalR purposes
  • Hosting SignalR functions on home windows Azure
  • How to use some of these techniques to a true ASP.NET or home windows shop app

Who this ebook is for

This ebook will go well with specialist ASP.NET builders conversant in C#, IIS and JavaScript.

Table of Contents

Chapter 1: advent to the Real-Time net and ASP.NET SignalR

Chapter 2: evaluate of SignalR

Chapter three: constructing SignalR functions utilizing Hubs

Chapter four: operating with power Connections

Chapter five: Debugging and Testing

Chapter 6: SignalR Clients

Chapter 7: Extending SignalR

Chapter eight: Configuration and Security

Chapter nine: development a inventory industry fee Updater

Chapter 10: construction a Collaborative Drawing Application

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Because of the nice abstraction and independence of elements in ASP. internet SignalR, hubs could be discovered completely independently from power connections; you don't want to understand power connections to construct real-world ASP. web SignalR functions. knowing hubs suffices for many universal situations, while power connections can be utilized for more-advanced situations. This bankruptcy discusses the next issues: • the concept that of hubs and the way they paintings generally • the way to configure routing to exploit hubs • how one can enforce hubs • Client-side implementation of hubs • the concept that of teams and the way to exploit them • How the JavaScript proxy for hubs is generated and works • Connection lifetime and the way to manage it • nation administration among server and shopper with hubs • the basis of the hubs environment and the way HubDispatcher and HubPipelineModule paintings. 39 Chapter three ■ constructing SignalR purposes utilizing Hubs review of Hubs construction a real–time internet improvement platform from scratch might be an intimidating job, particularly in case you plan to construct a radical framework. ASP. internet SignalR is outfitted to supply an entire set of APIs for internet builders to simplify this activity. ASP. internet SignalR offers those APIs in a really fresh and layered constitution, so that you have a suite of easy-to-use, high-level APIs in addition to a collection of lower-level extensible ones. these high-level APIs look below the identify hubs and supply an abstraction on best of the lower-level APIs referred to as chronic connections (see bankruptcy 4). Hubs offer a collection of 2 teams of libraries that disclose easy-to-use APIs for programmers: • Server-side libraries: those ASP. internet libraries offer a mechanism to enforce serverside tools that may be referred to as through consumers in addition to mechanisms to name a few equipment outlined at the consumers from the server part. • Client-side libraries: those libraries (written in JavaScript, . internet, Objective-C, Java, and different structures) supply a mechanism to enforce client-side equipment that may be referred to as via server in addition to mechanisms to name server-side tools. ■■Note As mentioned in bankruptcy 1, an ASP. internet SignalR software often has a unmarried server part (although this software program part should be disbursed between numerous actual servers), and there might be a variety of consumers connecting to this server part. The server-side part is applied within the . web Framework (or Mono), however the client(s) will be carried out in a variety of languages and applied sciences. the commonest client-side implementations are with JavaScript, yet there are . internet computing device consumers in addition to iOS, Android, and home windows mobilephone implementations. the foundation of the hubs environment on server and purchaser is the distant technique name (RPC), which has a large which means in laptop technology. mostly, an RPC is a mechanism that allows tools on a system/computer/component to be known as via an exterior or self sufficient system/computer/component. in relation to ASP. internet SignalR, as the structure is a client-server structure, and those aspects are autonomous, RPCs are made of the sort of elements to the opposite one.

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