TauriKit.Sidecar.Loopback 0.8.0

.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package TauriKit.Sidecar.Loopback --version 0.8.0
                    


                    

                
NuGet\Install-Package TauriKit.Sidecar.Loopback -Version 0.8.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="TauriKit.Sidecar.Loopback" Version="0.8.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="TauriKit.Sidecar.Loopback" Version="0.8.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="TauriKit.Sidecar.Loopback" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add TauriKit.Sidecar.Loopback --version 0.8.0
                    


                    

                
#r "nuget: TauriKit.Sidecar.Loopback, 0.8.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package TauriKit.Sidecar.Loopback@0.8.0
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=TauriKit.Sidecar.Loopback&version=0.8.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=TauriKit.Sidecar.Loopback&version=0.8.0
                    


                            Install as a Cake Tool

TauriKit.Sidecar.Loopback

The .NET host side of a desktop app's loopback sidecar — the counterpart of the tauri-kit-sidecar crate's loopback feature, released under the same version.

The app starts the sidecar with a fresh random token in an environment variable. The sidecar:

  • listens on 127.0.0.1 only, on a port the system picks;
  • announces that port as a line on standard output, which the app waits for;
  • answers only requests carrying the token as Authorization: Bearer <token>, compared in constant time;
  • reports an unexpected failure as its exception type and the innermost frame in the app's own code — never the message, which can quote the data the request was about.

The variable's name and the line's prefix are the app's, and must match what the Rust side is given.

using TauriKit.Sidecar.Loopback;

var token = LoopbackHost.ReadToken("HELPER_TOKEN");
if (token is null)
{
    Console.Error.WriteLine("HELPER_TOKEN (32+ characters) is required");
    return 2;
}

var app = LoopbackHost.CreateSlimBuilder(args).Build();
app.UseBearerToken(token);
app.UseFaults(new FaultOptions
{
    OwnNamespaces = ["MyCompany."],
    StatusFor = e => e is KeyNotFoundException ? StatusCodes.Status404NotFound : null,
});
app.MapGet("/health", () => "ok");
await app.RunAnnouncingAsync("helper ready port=");
return 0;

The library is ahead-of-time compilation compatible: a sidecar published with PublishAot can use it. Tests can host the same pipeline with CreateSlimBuilder(args) and StartAsync, and reach it over HttpClient at app.Urls.

License

MIT

Product Compatible and additional computed target framework versions.
.NET net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

  • net10.0

    • No dependencies.

NuGet packages (1)

Showing the top 1 NuGet packages that depend on TauriKit.Sidecar.Loopback:

Package Downloads
TauriKit.Sidecar.Loopback.AspNetCore

The ASP.NET Core host of a desktop app's loopback backend: listen on 127.0.0.1 only, announce the port the system picked or publish it in an owner-only discovery file, answer only registered callers (open routes by name), refuse non-loopback Host names, report unexpected failures without their messages, take a request to quit, and quit when the app that started it is gone. Pairs with the tauri-kit-sidecar crate's loopback feature.

GitHub repositories

This package is not used by any popular GitHub repositories.

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0.24.0 0 10/20/2026
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0.9.1 94 10/1/2026
0.9.0 88 10/1/2026
0.8.0 92 10/1/2026