![]() ![]() The connection between the client and server is persistent, unlike a classic HTTP connection, which is re-established for each communication. You can also send messages to specific clients. SignalR handles connection management automatically, and lets you broadcast messages to all connected clients simultaneously, like a chat room. SignalR also includes API for connection management (for instance, connect and disconnect events), and grouping connections. SignalR provides a simple API for creating server-to-client remote procedure calls (RPC) that call JavaScript functions in client browsers (and other client platforms) from server-side. SignalR also enables completely new types of web applications that require high frequency updates from the server, for example, real-time gaming. Examples include dashboards and monitoring applications, collaborative applications (such as simultaneous editing of documents), job progress updates, and real-time forms. Any time a user refreshes a web page to see new data, or the page implements long polling to retrieve new data, it is a candidate for using SignalR. While chat is often used as an example, you can do a whole lot more. SignalR can be used to add any sort of "real-time" web functionality to your ASP.NET application. Real-time web functionality is the ability to have server code push content to connected clients instantly as it becomes available, rather than having the server wait for a client to request new data. What is SignalR?ĪSP.NET SignalR is a library for ASP.NET developers that simplifies the process of adding real-time web functionality to applications. If you have questions that are not directly related to the tutorial, you can post them to the ASP.NET SignalR forum or. ![]() ![]() ![]() Please leave feedback on how you liked this tutorial and what we could improve in the comments at the bottom of the page. This article describes what SignalR is, and some of the solutions it was designed to create. This documentation isn't for the latest version of SignalR. ![]()
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