Best and Cheap ASP.NET SignalR Hosting Recommendation – Easy to Push Data from Server to Client Using ASP.NET SignalR

Push Data from Server to Client Using ASP.NET SignalR

In this article, we will talk about ASP.NET SignalR and how to push data from server to client using ASP.NET SignalR. As you know that ASP.NET SignalR is a new library for ASP.NET developers that make developing real-time web functionality easy. SignalR allows bi-directional communication between server and client. Servers can now push content to connected clients instantly as it becomes available. SignalR supports Web Sockets, and falls back to other compatible techniques for older browsers. SignalR includes APIs for connection management (for instance, connect and disconnect events), grouping connections, and authorization.

SignalR is an ASP.NET library, which is designed to use the existing transport technologies underneath based on the client nature and the support it offers. SignalR is capable of pushing the data to a wide variety of clients such as a Web page, Window application, Window Phone App, etc. The onus is now removed from the developers of worrying about which server push transport to use and deciding on the fallbacks in case of unsupported scenarios.


Creating an Asp.Net SignalR Hub

Open Visual Studio and create an empty MVC application named MyChatApplicationServer. Now open the NuGet packages, search and include Microsoft ASP.NET SignalR.

Now right click on the project, add the SignalR Hub class and name it as MyChatHub.  Add the following code to the class.

The HUB class also provides the properties Clients, Groups, Context and events like OnConnected, etc.

Finally you should also add Owin startup class to map the available hubs as shown below.

Pushing Data to a Web Form Client

Now create a web form client project named WebClient and add a simple HTML file ChatWebClient.html with the following code. Add the references to the required script files.

There are two ways of implementing the client function one with proxy and other without. The above example is the one without a proxy.

In the connection start you may also mention which transport SignalR should use.

Pushing Data to a Windows Application Client

Let us add a windows app and subscribe to the SignalR host. Create a new windows application named WinFormClient and from the nugget packages install Microsoft ASP.NET SignalR .NET client package. In the Program.cs add the following code.

Once done go ahead and run both the web and Windows client. Enter the messages and look at how the message is getting pushed across both the clients though they are of a different nature. SignalR is capable of serving multiple connected clients irrespective of the client platform or technology.

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Anjali Punjab

Anjali Punjab is a freelance writer, blogger, and ghostwriter who develops high-quality content for businesses. She is also a HubSpot Inbound Marketing Certified and Google Analytics Qualified Professional.