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There is a newer version of this package available.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
5.1.0 659 9/10/2025
5.0.3 215 9/9/2025
5.0.2 1,083 6/26/2025
5.0.1 424 6/26/2025
5.0.0 3,395 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 125 11/25/2024
5.0.0-beta3 129 11/24/2024
5.0.0-beta2 156 11/18/2024
5.0.0-beta1 174 11/1/2024
5.0.0-alpha5 263 10/21/2024
5.0.0-alpha4 179 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 4,330 12/12/2023
4.0.5 520 11/16/2023
4.0.4 4,399 3/13/2023
4.0.3 989 1/1/2023
4.0.2 545 11/30/2022
4.0.1 448 11/23/2022
4.0.0 756 11/7/2022
4.0.0-rc1 249 11/2/2022
4.0.0-beta4 258 10/26/2022
4.0.0-beta3 257 10/25/2022
4.0.0-beta2 693 9/23/2022
4.0.0-beta1 250 9/13/2022
4.0.0-alpha2 247 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 2,079 5/20/2022
3.1.11 1,271 2/8/2022
3.1.10 940 12/14/2021
3.1.9 558 12/6/2021
3.1.8 519 12/3/2021
3.1.7 932 9/24/2021
3.1.6 500 9/24/2021
3.1.5 512 9/24/2021
3.1.4 637 8/24/2021
3.1.3 664 8/4/2021
3.1.2 583 7/30/2021
3.1.1 579 7/27/2021
3.1.0 562 7/27/2021
3.1.0-beta8 383 7/7/2021
3.1.0-beta7 381 7/6/2021
3.1.0-beta6 401 7/6/2021
3.1.0-beta5 402 7/5/2021
3.1.0-beta4 350 7/5/2021
3.1.0-beta3 420 7/1/2021
3.1.0-beta2 378 7/1/2021
3.1.0-beta1 366 6/15/2021
3.0.5 1,701 6/14/2021
3.0.4 681 5/5/2021
3.0.3 705 4/10/2021
3.0.2 986 12/8/2020
3.0.1 668 12/1/2020
3.0.0 691 11/27/2020
3.0.0-alpha9 424 11/26/2020
3.0.0-alpha8 460 11/25/2020
3.0.0-alpha7 458 11/25/2020
3.0.0-alpha6 445 11/22/2020
3.0.0-alpha5 418 11/20/2020
3.0.0-alpha4 429 11/20/2020
3.0.0-alpha3 407 11/20/2020
3.0.0-alpha2 1,069 11/11/2020
3.0.0-alpha1 414 11/11/2020
2.1.0 902 11/11/2020
2.0.4 2,051 11/9/2020
2.0.3 735 10/31/2020
2.0.2 1,156 7/31/2020
2.0.1 693 7/20/2020
2.0.0 863 7/12/2020
2.0.0-alpha 497 7/7/2020
1.2.3 705 7/2/2020
1.2.2 663 6/29/2020
1.2.1 746 6/28/2020
1.2.0 751 6/23/2020
1.1.0 925 6/6/2020
1.0.10-alpha 485 5/13/2020
1.0.9-alpha 526 4/29/2020
1.0.8-alpha 487 4/29/2020
1.0.7-alpha 489 4/27/2020
1.0.6-alpha 480 4/24/2020
1.0.5-alpha 478 4/23/2020
1.0.4-alpha 475 4/22/2020
1.0.3-alpha 499 4/19/2020
1.0.2-alpha 498 4/19/2020
1.0.1-alpha 497 4/7/2020
1.0.0-alpha 497 4/6/2020