Delve into real-time web development with SignalR in ASP.NET Core. Gain insights into building interactive applications, configuring SignalR clients, ensuring security, and scaling with Azure SignalR Service.

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Dive into the world of real-time web development with SignalR in ASP.NET Core through this comprehensive guide. This course will equip you with all the necessary skills to develop interactive applications capable of real-time communication without excessive calls.

You'll start by getting to know what SignalR is and how to get it ready for use. Next, you'll learn about different kinds of SignalR clients, like JavaScript, Blazor, WebAssembly, .Net, Java, and even raw WebSocket clients. You'll also learn to send messages, use streaming, and keep your applications safe. Plus, you'll get the low-down on scaling your applications both on-site and in the cloud, especially using Azure SignalR Service.

By the time you finish this course, you'll know your way around building real-time applications using SignalR. You'll be able to set up different SignalR clients, protect your applications, and make them bigger or smaller as needed. These handy skills will boost your standing as a web developer.

The Ultimate Guide for SignalR in ASP.NET Core



After clicking on the terminal given below, perform the following steps:

## Step 1: Create a folder
Create a folder having the name `LearningSignalR` by executing the given command.

```Shell
 mkdir LearningSignalR
```
## Step 2: Navigate to the folder
Navigate to this newly created folder using the following command:
```shell
cd LearningSignalR
```
## Step 3: Generate the solution
Now, execute the following command inside the `LearningSignalR` folder:
```shell
dotnet new sln
```
This command is expected to generate a solution file with the same name as the folder. So, in our case, to ensure that the command has worked, we need to check whether our folder contains
`LearningSignalR.sln` file.

## Step 4: Generate the SignalR project
Now, we'll instantiate a project based on the `ASP.NET` Core MVC template. To do so, while having the terminal open in the solution folder, we'll execute the following command:
```shell
dotnet new mvc  -o SignalRServer
```
This command will generate the `SignalRServer` folder inside the solution folder with the default code setup for the ASP.NET Core MVC project. 

## Step 5: Add the project 
We'll now need to add the project to the solution. And to do so, this is the command we'll need to execute:

```shell
dotnet sln add SignalRServer/SignalRServer.csproj
```
The right-most argument of this command is the relative path to the C# project file, which has the `csproj` extension.

That’s it. We now have a solution with an MVC project in it. So, we can use the `nano` command to open the `sln` file.
Now, we're ready to add SignalR components to our project.

>**Note:** Since the environment is pre-established on the Educative platform, you don't need to do any installation. We'll work on Ubuntu 20.04.4 LTS throughout the course.



Getting Started with SignalR

Introduction

Introduction to SignalR

Setting up Your Project

In-browser SignalR Clients

External SignalR Clients

Sending Messages to Individual Clients or Groups of Clients

Streaming in SignalR

Advanced SignalR Configuration

Securing your SignalR Applications

Scaling Out SignalR Application

Introduction to Azure SignalR Service

Appendix

Getting Started with SignalR

Setting up the SignalR server