As
a server-side software system, SignalR is used widely by ASP.NET
developers to add real-time web functionality to their applications. The
term real-time web functionality refers to the ability to push content
from the server to connected clients as soon as the data becomes
available. The functionality does not require the web server to wait
till the client requests new data. Thus, ASP.NET SignalR used
effectively to reduce the client’s waiting period.
Often
users refresh web pages with the intention of seeing new and updated
data. Each time a web page is refreshed or try to retrieve updated data
by implementing long polling, the developers can use Signal R to reduce
the waiting time. SignalR further makes it easier for programmers to
build applications that need high frequency updates from the server,
including collaborative applications, dashboards, real-time forms and
real-time games.
Features that Make ASP.NET SignalR Effective in Reducing Client's Waiting Period
Selects the Best Available Transport Automatically
ASP.NET
SignalR reduces the client’s waiting time by taking advantage of
multiple transportations. It evaluates the best available transport of
both server and client, and chooses the best one. At the same time, it
also avails the benefits of WebSockets to enable bidirectional
communication between the browser and server. However, SignalR relies on
the HTML5 API only when it is available. If WebSockets is not
available, it uses techniques to facilitate bidirectional communication.
The programmers are not required to write specific or additional code
to choose the best transportation.
Provides a High-Level API to Create Server-to-Client RPCs
The
users can further create server-to-client remote procedure calls (RPC)
by using the high-level API provided by SignalR. It uses ASP.NET code
from server-side, and calls JavaScript functions in the web browser or
any other platform of the client. At the same time, SignalR also allows
programmers to smoothly manage connections by adding a variety of hooks,
including grouping connections, authorization, and connect or
disconnect events.
Facilitates Long and Consistent Polling
Normally,
polling consists of making periodic connections from the client to
server with the intention of checking if any relevant update to the
server content. Some applications like chat programs frequently poll the
server to deliver updated data to users. Some application requiring
high frequency data often open a connection and keep it open. SignalR
uses WebSockets to facilitate long and consistent polling. So the
programmers are not required to write complex code to keep the
connection open.
Pushes Data Effectively to a Variety of Clients
Often
developers have to explore ways to reduce the overhead on server. Some
programmers even add capabilities to the server to reduce the overhead
by notifying the clients about any updates. They also use a variety of
technologies to reduce the server overhead including WebSockets, long
polling and Server Sent Events (SSE). But these techniques are not
supported by all clients and web browsers. On the other hand, SignalR is
designed as an ASP.NET library that uses the existing and available
transport technologies. So it is effective in pushing data to a variety
of clients including web pages, web applications and Window Phone Apps.
Helps in Building Asynchronous Applications
SignalR
is used widely by programmers as a framework to create asynchronous
applications. The framework makes it easier for them to build ASP.NET
applications by overcoming the limitations of the response and request
cycle of internet communication. They can further move to conventional
one-on-one connection offered by the conventional client server
architectures to push the content quickly from the web server to the
client.
Despite
being effective in reducing client’s waiting period, ASP.NET SignalR is
simple and easy to implement. That is why; many developers rely on the
efficient library to rapidly build applications that poll the server
constantly to provide updated information to users. You can get in touch
with a custom .net development company who can help you develop web apps that are stable, scalable and secure.
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