Falco 5.0.0-alpha3

This is a prerelease version of Falco.
There is a newer version of this package available.
See the version list below for details.
dotnet add package Falco --version 5.0.0-alpha3
                    
NuGet\Install-Package Falco -Version 5.0.0-alpha3
                    
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="Falco" Version="5.0.0-alpha3" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="Falco" Version="5.0.0-alpha3" />
                    
Directory.Packages.props
<PackageReference Include="Falco" />
                    
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 Falco --version 5.0.0-alpha3
                    
#r "nuget: Falco, 5.0.0-alpha3"
                    
#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 Falco@5.0.0-alpha3
                    
#: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=Falco&version=5.0.0-alpha3&prerelease
                    
Install as a Cake Addin
#tool nuget:?package=Falco&version=5.0.0-alpha3&prerelease
                    
Install as a Cake Tool

Falco

NuGet Version build

open Falco
open Microsoft.AspNetCore.Builder

let wapp = WebApplication.Create()

let endpoints =
    // associate GET / to plain text HttpHandler
    [ Routing.get "/" (Response.ofPlainText "Hello World!") ]

// activate Falco endpoint source
wapp.UseFalco(endpoints)
    .Run()

Falco is a toolkit for building fast and functional-first web applications using F#. You can think of it as minimal API on steroids.

  • Built upon the high-performance components of ASP.NET Core.
  • Optimized for building HTTP applications quickly.
  • Seamlessly integrates with existing .NET Core middleware and libraries.

Key Features

Design Goals

  • Provide a toolset to build a working full-stack web application in F#.
  • Should be simple, extensible and integrate with existing .NET libraries.
  • Can be easily learned.

Learn

The best way to get started is by visiting the documentation. For questions and support please use discussions. The issue list of this repo is exclusively for bug reports and feature requests. For chronological updates refer to the changelog is the best place to find chronological updates.

If you want to stay in touch, feel free to reach out on Twitter.

Have an article or video that you want to share? We'd love to hear from you! To add your content, visit this discussion.

Community Projects

Articles

Videos

Contribute

Thank you for considering contributing to Falco, and to those who have already contributed! We appreciate (and actively resolve) PRs of all shapes and sizes.

We kindly ask that before submitting a pull request, you first submit an issue or open a discussion.

If functionality is added to the API, or changed, please kindly update the relevant document. Unit tests must also be added and/or updated before a pull request can be successfully merged.

Only pull requests which pass all build checks and comply with the general coding guidelines can be approved.

If you have any further questions, submit an issue or open a discussion or reach out on Twitter.

Why "Falco"?

Kestrel has been a game changer for the .NET web stack. In the animal kingdom, "Kestrel" is a name given to several members of the falcon genus. Also known as "Falco".

Find a bug?

There's an issue for that.

License

Built with ♥ by Pim Brouwers in Toronto, ON. Licensed under Apache License 2.0.

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  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.

NuGet packages (4)

Showing the top 4 NuGet packages that depend on Falco:

Package Downloads
Falco.Htmx

HTMX Bindings for the Falco web toolkit.

Falco.OpenApi

OpenAPI integration that provides a set of utilities for generating OpenAPI documentation from Falco routes.

Falco.Datastar

Datastar Bindings for the Falco web toolkit.

Falco.Bulma

Package Description

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
5.1.0 337 9/10/2025
5.0.3 176 9/9/2025
5.0.2 978 6/26/2025
5.0.1 307 6/26/2025
5.0.0 3,198 1/29/2025
5.0.0-rc2 148 1/25/2025
5.0.0-rc1 215 12/17/2024
5.0.0-beta5 131 12/9/2024
5.0.0-beta4 113 11/25/2024
5.0.0-beta3 117 11/24/2024
5.0.0-beta2 133 11/18/2024
5.0.0-beta1 146 11/1/2024
5.0.0-alpha5 238 10/21/2024
5.0.0-alpha4 162 10/18/2024
5.0.0-alpha3 124 10/17/2024
5.0.0-alpha2 117 9/29/2024
5.0.0-alpha1 92 9/22/2024
4.0.6 4,293 12/12/2023
4.0.5 502 11/16/2023
4.0.4 4,368 3/13/2023
4.0.3 965 1/1/2023
4.0.2 511 11/30/2022
4.0.1 427 11/23/2022
4.0.0 715 11/7/2022
4.0.0-rc1 225 11/2/2022
4.0.0-beta4 238 10/26/2022
4.0.0-beta3 233 10/25/2022
4.0.0-beta2 669 9/23/2022
4.0.0-beta1 228 9/13/2022
4.0.0-alpha2 223 9/11/2022
4.0.0-alpha1 263 8/29/2022
3.1.14 2,006 8/29/2022
3.1.13 767 8/11/2022
3.1.12 2,042 5/20/2022
3.1.11 1,246 2/8/2022
3.1.10 914 12/14/2021
3.1.9 534 12/6/2021
3.1.8 495 12/3/2021
3.1.7 907 9/24/2021
3.1.6 475 9/24/2021
3.1.5 483 9/24/2021
3.1.4 607 8/24/2021
3.1.3 640 8/4/2021
3.1.2 562 7/30/2021
3.1.1 554 7/27/2021
3.1.0 539 7/27/2021
3.1.0-beta8 357 7/7/2021
3.1.0-beta7 357 7/6/2021
3.1.0-beta6 376 7/6/2021
3.1.0-beta5 375 7/5/2021
3.1.0-beta4 323 7/5/2021
3.1.0-beta3 398 7/1/2021
3.1.0-beta2 356 7/1/2021
3.1.0-beta1 340 6/15/2021
3.0.5 1,671 6/14/2021
3.0.4 666 5/5/2021
3.0.3 678 4/10/2021
3.0.2 950 12/8/2020
3.0.1 643 12/1/2020
3.0.0 676 11/27/2020
3.0.0-alpha9 401 11/26/2020
3.0.0-alpha8 423 11/25/2020
3.0.0-alpha7 430 11/25/2020
3.0.0-alpha6 419 11/22/2020
3.0.0-alpha5 383 11/20/2020
3.0.0-alpha4 406 11/20/2020
3.0.0-alpha3 384 11/20/2020
3.0.0-alpha2 1,033 11/11/2020
3.0.0-alpha1 388 11/11/2020
2.1.0 868 11/11/2020
2.0.4 2,027 11/9/2020
2.0.3 703 10/31/2020
2.0.2 1,131 7/31/2020
2.0.1 669 7/20/2020
2.0.0 837 7/12/2020
2.0.0-alpha 460 7/7/2020
1.2.3 681 7/2/2020
1.2.2 638 6/29/2020
1.2.1 720 6/28/2020
1.2.0 724 6/23/2020
1.1.0 900 6/6/2020
1.0.10-alpha 464 5/13/2020
1.0.9-alpha 503 4/29/2020
1.0.8-alpha 450 4/29/2020
1.0.7-alpha 456 4/27/2020
1.0.6-alpha 453 4/24/2020
1.0.5-alpha 451 4/23/2020
1.0.4-alpha 451 4/22/2020
1.0.3-alpha 473 4/19/2020
1.0.2-alpha 474 4/19/2020
1.0.1-alpha 473 4/7/2020
1.0.0-alpha 465 4/6/2020