Top 23 F# Fsharp Projects
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VisualFSharp
The F# compiler, F# core library, F# language service, and F# tooling integration for Visual Studio
] toggle in F# https://github.com/fsharp/fslang-suggestions/issues/919#issuecomment-905013334 which can guarantee AOT/linker compatibility - Reference assembly output https://github.com/dotnet/fsharp/pull/12334
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There is also F# via Fable: https://fable.io
Business logic can be shared with .NET and it has lots of ways to interoperate with JS. There's even a TypeScript converter though of course it's not as pleasant as "yarn add" and YMMV : https://fable.io/ts2fable/
Here's a demo of building some React components in F#: https://www.youtube.com/watch?v=a6Ct3CM_lj4&t=860s
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Scout APM
Less time debugging, more time building. Scout APM allows you to find and fix performance issues with no hassle. Now with error monitoring and external services monitoring, Scout is a developer's best friend when it comes to application development.
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Check out https://fsprojects.github.io/Paket/ and https://fake.build/ and https://docs.microsoft.com/en-us/dotnet/fsharp/get-started/get-started-vscode for playing with F#.
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By default Giraffe, the framework which I use as a web server, uses Newtonsoft.Json to serialize results to JSON. However, for discriminated union, it generates quite a lot of JSON so I've switched to System.Text.Json which is built into newer versions of .Net Core. In combination with FSharp.SystemTextJson package allows serializing discriminated unions more gracefully. All we need is to decorate Branch type with JsonFSharpConverter(JsonUnionEncoding.BareFieldlessTags) attribute.
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NBomber
Modern and flexible load testing framework for Pull and Push scenarios, designed to test any system regardless a protocol (HTTP/WebSockets/AMQP etc) or a semantic model (Pull/Push).
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Suave.IO
Suave is a simple web development F# library providing a lightweight web server and a set of combinators to manipulate route flow and task composition.
This shouldn't be that hard, I just needed a server that well... served the HTML/CSS/JS files right? I went to my desktop, created an F# script added a couple of libraries like Suave and CliWrap so I could call the dotnet fable command from my F# code and make it compile my Fable files.
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Project mention: Does anyone know of a good place to learn and practice some F# preferably F# 6 to be able to use Task. | reddit.com/r/fsharp | 2021-12-10
Try using F# for tests. It has some great libraries like FsCheck (https://fscheck.github.io/FsCheck/).
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OPS
OPS - Build and Run Open Source Unikernels. Quickly and easily build and deploy open source unikernels in tens of seconds. Deploy in any language to any cloud.
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Bolero
Bolero brings Blazor to F# developers with an easy to use Model-View-Update architecture, HTML combinators, hot reloaded templates, type-safe endpoints, advanced routing and remoting capabilities, and more.
If anyone's feeling adventurous, I just learned that Bolero components can be used in Blazor (and vice versa).
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Project mention: Perf Avore: A Rule Based CrossPlatform Performance Based Monitoring and Analysis Tool | dev.to | 2021-12-20
Perf Avore was developed on VSCode using the ionide plugin and dotnet cli.
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Comet promotes a variation of the Model-View-Update pattern popularized by The Elm Architecture, Elmish, Fabulous and others. The major parts of MVU are:
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2 - Any form of Statically Typed, Compile Time-Safe Raw SQL.
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Saturn
Opinionated, web development framework for F# which implements the server-side, functional MVC pattern
Project mention: Why did you (any .NET pro) either choose or switch to using F#? | reddit.com/r/dotnet | 2021-12-22The "S" stands for Saturn. Suave is not very popular.
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Project mention: Perfect F# React Dev Setup in F# Fable with VS Code, Formatting/Linting | dev.to | 2021-09-08
Fantomas: the code formatter
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SQLProvider
A general F# SQL database erasing type provider, supporting LINQ queries, schema exploration, individuals, CRUD operations and much more besides.
One of the more popular Type Providers I used is the SQL Provider, but even it has severe limitations when it comes to .NET Core.
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Project mention: Why did you (any .NET pro) either choose or switch to using F#? | reddit.com/r/dotnet | 2021-12-22
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fslang-design
RFCs and docs related to the F# language design process, see https://github.com/fsharp/fslang-suggestions to submit ideas
Project mention: F# Weekly #42, 2021 – .NET 6 RC2 and What’s new in F# 6.0 | reddit.com/r/fsharp | 2021-10-18Add insert/remove/update functions for collections, also Keys/Values for Map
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Feliz
A fresh retake of the React API in Fable and a collection of high-quality components to build React applications in F#, optimized for happiness
Project mention: Fable is a compiler that brings F# into the JavaScript ecosystem | news.ycombinator.com | 2021-10-17Along with Fable highly recommend a look at Feliz. A joy to work with and its ViewEngine can also be separately used w/ Giraffe if you enjoy the syntax:
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Project mention: Are there actually better alternatives than Apollo server? | reddit.com/r/graphql | 2022-01-16
If you are willing to consider other langs, F# is pretty dope https://github.com/fsprojects/FSharp.Data.GraphQL
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equinox
.NET Event Sourcing library with CosmosDB, EventStoreDB, SqlStreamStore and integration test backends. Focused at stream level; see https://github.com/jet/propulsion for cross-stream projections/subscriptions/reactions
F# works really well with event-driven architectures. Event sourcing and MVU/Elmish both work well with immutable data (you can't change an event after it's happened!). Discriminated unions are fantastic, and F# event sourcing/MVU libraries make liberal usage of them. Elmish is a frontend agnostic MVU library that has WPF/Javascript/WebAssembly implementations. On the event sourcing side there's Akka (though this is more actor model) and Equinox whose maintainer is incredibly friendly.
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Project mention: Binary Analysis Framework B2R2 v0.5.0 released. | reddit.com/r/ReverseEngineering | 2021-10-22
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Project mention: I'm having a hard time with Haskell. What other functional programming languages is a few steps below it regarding accessibility (for a OO programmer)? I'm thinking about Elm... | reddit.com/r/functionalprogramming | 2021-11-29
The SAFE dojo is a tutorial repo for getting started with fullstack F# apps using the F# "framework" (although it's more of an unopinionated template/collection of libraries for writing fullstack apps). I'd suggest starting with Fable/Elmish before diving into a full SAFE stack app though.
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F# Fsharp related posts
- Anyone interested in collaborating on building an F# to Dart compiler?
- Progressively Adding Fable to JS Projects
- What are you working on? (2022-01)
- Bleeter - UI for GTA V's microblogging site built using F#, React and Tailwind CSS
- Bleeter - UI for GTA V's microblogging site built using F# and Tailwind CSS
- Bleeter - UI for GTA V's microblogging site built using F# and Fable
- Bleeter - UI for GTA V's microblogging site built using F# and Fable
Index
What are some of the best open-source Fsharp projects in F#? This list will help you:
| Project | Stars | |
|---|---|---|
| 1 | VisualFSharp | 2,996 |
| 2 | Fable: F# |> BABEL | 2,321 |
| 3 | Paket | 1,796 |
| 4 | Giraffe | 1,719 |
| 5 | NBomber | 1,247 |
| 6 | Suave.IO | 1,225 |
| 7 | FsCheck | 945 |
| 8 | Bolero | 780 |
| 9 | ionide-vscode-fsharp | 727 |
| 10 | F# Data | 698 |
| 11 | elmish | 652 |
| 12 | Rezoom.SQL | 638 |
| 13 | Saturn | 622 |
| 14 | fantomas | 568 |
| 15 | SQLProvider | 467 |
| 16 | Avalonia.FuncUI | 456 |
| 17 | fslang-design | 397 |
| 18 | Feliz | 380 |
| 19 | FSharp.Data.GraphQL | 351 |
| 20 | equinox | 340 |
| 21 | B2R2 | 333 |
| 22 | SAFE-Dojo | 330 |
| 23 | FsPickler | 308 |
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