BlazorPlus

Installation

add BlazorPlus.dll via https://www.nuget.org/packages/BlazorPlus

Or use the default template https://github.com/BlazorPlus/BlazorPlus

Installation server-side :

1 - Startup.cs

in ConfigureServices :
    services.AddHttpContextAccessor();
    services.AddScoped<BlazorPlus.BlazorSession>();
in app.UseEndpoints : (before Fallback)
    endpoints.Map("/_blazorplus_handler", BlazorPlus.BlazorSession.ProcessRequestAsync);

2 - _Host.cshtml

in <head> :
    <script src="/_blazorplus_handler?action=script" type="text/javascript"></script>

3 - _Imports.razor

    @using BlazorPlus

4 - App.razor

at the front:
    <BlazorContainer IsShared="true" />

Now test it in Index.razor:

    <button @onclick="ShowHelloWorld">Hello World</button>
    @code{
        void ShowHelloWorld()
        {
            BlazorSession.Current.Alert("Greeting", "Hello World");
        }
    }

Installation WebAssembly

1 - Program.cs

    BlazorPlus.BlazorSession.InitForWasm(builder.Services);
    builder.Services.AddScoped<BlazorPlus.BlazorSession>();

2 - _Imports.razor

    @using BlazorPlus

3 - MainLayout.razor

at the front:
    @inject BlazorSession bses
    <BlazorContainer IsShared="true"/>

Now test it in Index.razor:

    <button @onclick="ShowHelloWorld">Hello World</button>
    @code{
        void ShowHelloWorld()
        {
            BlazorSession.Current.Alert("Greeting", "Hello World");
        }
    }