SignalR is a

free and open-source Free and open-source software (FOSS) is a term used to refer to groups of software consisting of both free software and open-source software where anyone is freely licensed to use, copy, study, and change the software in any way, and the source ...

software library In computer science, a library is a collection of non-volatile resources used by computer programs, often for software development. These may include configuration data, documentation, help data, message templates, pre-written code and sub ...

for

Microsoft Microsoft Corporation is an American multinational corporation, multinational technology company, technology corporation producing Software, computer software, consumer electronics, personal computers, and related services headquartered at th ...

ASP.NET that allows server code to send asynchronous notifications to client-side

web application A web application (or web app) is application software that is accessed using a web browser. Web applications are delivered on the World Wide Web to users with an active network connection. History In earlier computing models like client-serve ...

s. The library includes server-side and client-side

JavaScript JavaScript (), often abbreviated as JS, is a programming language that is one of the core technologies of the World Wide Web, alongside HTML and CSS. As of 2022, 98% of Website, websites use JavaScript on the Client (computing), client side ...

components.

Details

ASP.NET SignalR is a library for ASP.NET developers to add real-time web functionality to their applications. Real-time web functionality is the ability to have server-side code push content to the connected clients as it happens, in real-time. SignalR takes advantage of several transports, automatically selecting the best available transport given the client's and server's capabilities. SignalR takes advantage of

WebSocket WebSocket is a computer communications protocol, providing full-duplex communication channels over a single Transmission Control Protocol, TCP connection. The WebSocket protocol was standardized by the Internet Engineering Task Force, IETF as in ...

, an

HTML5 HTML5 is a markup language used for structuring and presenting content on the World Wide Web. It is the fifth and final major HTML version that is a World Wide Web Consortium (W3C) recommendation. The current specification is known as the HT ...

API that enables bi-directional communication between the browser and server. SignalR will use WebSockets under the covers when it's available, and gracefully fall back to other techniques and technologies when it isn't, while the application code remains the same. SignalR also provides a simple, high-level API for doing server-to-client

RPC RPC may refer to: Science and technology * Rational polynomial coefficient * Reactive Plastic Curtain, a carbon-dioxide-absorbing device used in some rebreather breathing sets * Regional Playback Control, a regional lockout technology for DVDs * ...

(call JavaScript functions in a client's browser from server-side .NET code) in an ASP.NET application, as well as adding useful hooks for connection management, such as connect/disconnect events, grouping connections, authorization.

References

External links

* *
Azure SignalR Service
ASP.NET C Sharp libraries Microsoft application programming interfaces Microsoft free software Servers (computing) Software using the Apache license Web frameworks 2013 software Windows-only free software {{network-software-stub

Details

See also

References

Further reading

External links