Falco 4.0.0-beta4

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There is a newer version of this package available.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 4.0.0-beta4
                    
NuGet\Install-Package Falco -Version 4.0.0-beta4
                    
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="4.0.0-beta4" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="Falco" Version="4.0.0-beta4" />
                    
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 4.0.0-beta4
                    
#r "nuget: Falco, 4.0.0-beta4"
                    
#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@4.0.0-beta4
                    
#: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=4.0.0-beta4&prerelease
                    
Install as a Cake Addin
#tool nuget:?package=Falco&version=4.0.0-beta4&prerelease
                    
Install as a Cake Tool

Falco

NuGet Version build

open Falco
open Falco.Routing
open Falco.HostBuilder

webHost [||] {
    endpoints [
        get "/" (Response.ofPlainText "Hello World")
    ]
}

Falco is a toolkit for building fast, functional-first and fault-tolerant web applications using F#.

  • 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.
  • 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.

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.

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 relevent document. Unit tests must also be added and/or updated before a pull request can be successfully merged.

All pull requests should originate from the develop branch. A merge into this branch means that your changes are scheduled to go into production with the very next release, which could happen any time from the same day up to a couple weeks (depending on priorities and urgency).

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 net6.0 is compatible.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  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
5.1.0 729 9/10/2025
5.0.3 221 9/9/2025
5.0.2 1,130 6/26/2025
5.0.1 452 6/26/2025
5.0.0 3,420 1/29/2025
5.0.0-rc2 177 1/25/2025
5.0.0-rc1 236 12/17/2024
5.0.0-beta5 154 12/9/2024
5.0.0-beta4 126 11/25/2024
5.0.0-beta3 130 11/24/2024
5.0.0-beta2 156 11/18/2024
5.0.0-beta1 175 11/1/2024
5.0.0-alpha5 266 10/21/2024
5.0.0-alpha4 180 10/18/2024
5.0.0-alpha3 142 10/17/2024
5.0.0-alpha2 132 9/29/2024
5.0.0-alpha1 109 9/22/2024
4.0.6 4,340 12/12/2023
4.0.5 521 11/16/2023
4.0.4 4,399 3/13/2023
4.0.3 989 1/1/2023
4.0.2 547 11/30/2022
4.0.1 448 11/23/2022
4.0.0 756 11/7/2022
4.0.0-rc1 250 11/2/2022
4.0.0-beta4 259 10/26/2022
4.0.0-beta3 258 10/25/2022
4.0.0-beta2 694 9/23/2022
4.0.0-beta1 250 9/13/2022
4.0.0-alpha2 248 9/11/2022
4.0.0-alpha1 288 8/29/2022
3.1.14 2,038 8/29/2022
3.1.13 793 8/11/2022
3.1.12 2,101 5/20/2022
3.1.11 1,272 2/8/2022
3.1.10 941 12/14/2021
3.1.9 559 12/6/2021
3.1.8 520 12/3/2021
3.1.7 935 9/24/2021
3.1.6 504 9/24/2021
3.1.5 515 9/24/2021
3.1.4 641 8/24/2021
3.1.3 667 8/4/2021
3.1.2 586 7/30/2021
3.1.1 582 7/27/2021
3.1.0 565 7/27/2021
3.1.0-beta8 386 7/7/2021
3.1.0-beta7 385 7/6/2021
3.1.0-beta6 404 7/6/2021
3.1.0-beta5 405 7/5/2021
3.1.0-beta4 353 7/5/2021
3.1.0-beta3 423 7/1/2021
3.1.0-beta2 381 7/1/2021
3.1.0-beta1 369 6/15/2021
3.0.5 1,710 6/14/2021
3.0.4 684 5/5/2021
3.0.3 708 4/10/2021
3.0.2 991 12/8/2020
3.0.1 672 12/1/2020
3.0.0 695 11/27/2020
3.0.0-alpha9 428 11/26/2020
3.0.0-alpha8 464 11/25/2020
3.0.0-alpha7 462 11/25/2020
3.0.0-alpha6 449 11/22/2020
3.0.0-alpha5 422 11/20/2020
3.0.0-alpha4 433 11/20/2020
3.0.0-alpha3 411 11/20/2020
3.0.0-alpha2 1,073 11/11/2020
3.0.0-alpha1 419 11/11/2020
2.1.0 906 11/11/2020
2.0.4 2,055 11/9/2020
2.0.3 739 10/31/2020
2.0.2 1,160 7/31/2020
2.0.1 698 7/20/2020
2.0.0 868 7/12/2020
2.0.0-alpha 501 7/7/2020
1.2.3 709 7/2/2020
1.2.2 667 6/29/2020
1.2.1 750 6/28/2020
1.2.0 755 6/23/2020
1.1.0 929 6/6/2020
1.0.10-alpha 489 5/13/2020
1.0.9-alpha 530 4/29/2020
1.0.8-alpha 491 4/29/2020
1.0.7-alpha 498 4/27/2020
1.0.6-alpha 485 4/24/2020
1.0.5-alpha 484 4/23/2020
1.0.4-alpha 481 4/22/2020
1.0.3-alpha 503 4/19/2020
1.0.2-alpha 502 4/19/2020
1.0.1-alpha 501 4/7/2020
1.0.0-alpha 501 4/6/2020