Development with ASP.NET Core SignalR

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Category: ASP.NET Core

Selection of compelling tool for building the gaming and similar real time application is a daunting task, and in most cases, developers get stuck in that selection. The reason is; gamers, social networkers, weather updates and travel agencies want a fast and hassle-free platform for their applications. Real-time applications, monitoring applications, social networking websites, online chatting and voting bots demand high-frequency and regular responses. With SignalR, programmers can add instant functionality in their applications; its real-time feature enables fast communication between the client and server. In this way, the server can simultaneously send packets to its client while handling the incoming traffic.

Characteristics of ASP.NET Core SignalR

ASP.NET, a native cross-platform and open source, is a framework for developing modern internet-based applications, whereas, ASP.NET Core, the latest version, certifies a compatible and precise framework for building advanced web applications according to today’s trends and requirements. The Core SignalR empowers a high-quality real-time web functionality that ensures robust and efficient client-server connectivity with its unique socket-based programming.

Simplified and Faster Connectivity

An API at the server side use Remote Procedure Call (RPC), which is sent by SignalR from the server side of the .Net Core to call JavaScript functions of the client side. Similarly, an API provided on the client side stimulates the systems on the client side to create a simplified and faster real-time communication. It streamlines the live processing of real-time chats, games and job-updates without simulating any bugs and delays and at a lightning speed.

Effectual Handling of Incoming Traffic

The amount of data that is processed successfully between client and server has grown exponentially adding to the internet traffic. Controlling traffic with older web application was difficult and time-consuming as it functions under the “PULL Technology”. In Stark contrast, the Core SignalR employs the “PUSH Technology” that pushes a call to server code and establishes a steady and stable connection on an update request from the client side. The three main technologies reinforced by Core SignalR for handling online traffic are;

  • Use of Web-sockets technology (provides instant communication with low latency rate).
  • Long-polling technology (requests sent by the client to the server for regular updates).
  • SSE technology (provides programmed updates to the browser from the server).

Boosting Bi-directional Communication

SignalR supports full duplex communication that allows the client and server to transfer data back and forth. Core SignalR acts as an open-ended pipeline between client and server, which maintains the constant flow of information from both sides without any delay. It plays this role by using Hubs and built-in protocols; text protocol and binary protocol. Hubs knock the door of the client by sending messages that have the name and parameter of the client. On receiving the method call, the client finds its counterpart, after detecting the equivalent; the client calls that counterpart and performs a deserialization process.


Up till now, you’ve read the importance of ASP.NET Core SignalR for real-time applications. Mostly, game developers and programmer of mobile application follow this approach. Thanks to its perfect structure that automatically establishes the full-duplex path between client and server. The push technology of SignalR maintains traffic, whereas its inevitable nature selects the desired transport technology according to client-server compatibility.

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