Falco 5.0.0-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There is a newer version of this package available.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 5.0.0-beta4
                    
NuGet\Install-Package Falco -Version 5.0.0-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="5.0.0-beta4" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="Falco" Version="5.0.0-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 5.0.0-beta4
                    
#r "nuget: Falco, 5.0.0-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@5.0.0-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=5.0.0-beta4&prerelease
                    
Install as a Cake Addin
#tool nuget:?package=Falco&version=5.0.0-beta4&prerelease
                    
Install as a Cake Tool

Falco

NuGet Version build

open Falco
open Falco.Routing
open Microsoft.AspNetCore.Builder

let wapp = WebApplication.Create()

let endpoints =
    // associate GET / to plain text HttpHandler
    [ 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 full-stack web applications quickly.
  • Seamlessly integrates with existing .NET Core middleware and libraries.

Key Features

Design Goals

  • Provide a toolset to build 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 is compatible.  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.Bulma

Package Description

Falco.Datastar

Datastar Bindings for the Falco web toolkit.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
5.0.2 384 6/26/2025
5.0.1 153 6/26/2025
5.0.0 2,690 1/29/2025
5.0.0-rc2 121 1/25/2025
5.0.0-rc1 192 12/17/2024
5.0.0-beta5 111 12/9/2024
5.0.0-beta4 104 11/25/2024
5.0.0-beta3 98 11/24/2024
5.0.0-beta2 114 11/18/2024
5.0.0-beta1 128 11/1/2024
5.0.0-alpha5 214 10/21/2024
5.0.0-alpha4 143 10/18/2024
5.0.0-alpha3 106 10/17/2024
5.0.0-alpha2 110 9/29/2024
5.0.0-alpha1 86 9/22/2024
4.0.6 4,180 12/12/2023
4.0.5 477 11/16/2023
4.0.4 4,332 3/13/2023
4.0.3 934 1/1/2023
4.0.2 484 11/30/2022
4.0.1 406 11/23/2022
4.0.0 679 11/7/2022
4.0.0-rc1 191 11/2/2022
4.0.0-beta4 205 10/26/2022
4.0.0-beta3 199 10/25/2022
4.0.0-beta2 637 9/23/2022
4.0.0-beta1 193 9/13/2022
4.0.0-alpha2 190 9/11/2022
4.0.0-alpha1 228 8/29/2022
3.1.14 1,965 8/29/2022
3.1.13 734 8/11/2022
3.1.12 1,996 5/20/2022
3.1.11 1,214 2/8/2022
3.1.10 878 12/14/2021
3.1.9 501 12/6/2021
3.1.8 470 12/3/2021
3.1.7 869 9/24/2021
3.1.6 441 9/24/2021
3.1.5 449 9/24/2021
3.1.4 572 8/24/2021
3.1.3 607 8/4/2021
3.1.2 538 7/30/2021
3.1.1 521 7/27/2021
3.1.0 501 7/27/2021
3.1.0-beta8 322 7/7/2021
3.1.0-beta7 322 7/6/2021
3.1.0-beta6 343 7/6/2021
3.1.0-beta5 330 7/5/2021
3.1.0-beta4 290 7/5/2021
3.1.0-beta3 374 7/1/2021
3.1.0-beta2 322 7/1/2021
3.1.0-beta1 315 6/15/2021
3.0.5 1,637 6/14/2021
3.0.4 631 5/5/2021
3.0.3 643 4/10/2021
3.0.2 905 12/8/2020
3.0.1 607 12/1/2020
3.0.0 650 11/27/2020
3.0.0-alpha9 375 11/26/2020
3.0.0-alpha8 375 11/25/2020
3.0.0-alpha7 392 11/25/2020
3.0.0-alpha6 386 11/22/2020
3.0.0-alpha5 347 11/20/2020
3.0.0-alpha4 370 11/20/2020
3.0.0-alpha3 358 11/20/2020
3.0.0-alpha2 986 11/11/2020
3.0.0-alpha1 351 11/11/2020
2.1.0 824 11/11/2020
2.0.4 1,991 11/9/2020
2.0.3 671 10/31/2020
2.0.2 1,095 7/31/2020
2.0.1 631 7/20/2020
2.0.0 810 7/12/2020
2.0.0-alpha 415 7/7/2020
1.2.3 643 7/2/2020
1.2.2 612 6/29/2020
1.2.1 683 6/28/2020
1.2.0 686 6/23/2020
1.1.0 857 6/6/2020
1.0.10-alpha 425 5/13/2020
1.0.9-alpha 477 4/29/2020
1.0.8-alpha 423 4/29/2020
1.0.7-alpha 407 4/27/2020
1.0.6-alpha 414 4/24/2020
1.0.5-alpha 415 4/23/2020
1.0.4-alpha 424 4/22/2020
1.0.3-alpha 435 4/19/2020
1.0.2-alpha 435 4/19/2020
1.0.1-alpha 436 4/7/2020
1.0.0-alpha 428 4/6/2020