keera-hails-reactive-htmldom
reflex-platform
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keera-hails-reactive-htmldom | reflex-platform | |
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2 | 10 | |
187 | 713 | |
0.0% | 0.7% | |
0.0 | 8.3 | |
almost 2 years ago | 2 months ago | |
Haskell | Nix | |
BSD 3-clause "New" or "Revised" License | BSD 3-clause "New" or "Revised" License |
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keera-hails-reactive-htmldom
- Resurrection/modernization of an old Haskell+Haste project (boardgame Yinsh)
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Any News On Haskell For Android ?
To my knowledge, Keera Studios has done the most work on building Haskell dev tools for Android (and iOS) with their "Hails" platform (like Ruby's "Rails", but for Haskell). Their blog has been a bit quiet lately, with not much new since 2020, but their GitHub is still fairly up-to-date.
reflex-platform
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The Haskell job market has been growing steaily since 2008
We used reflex-frp, so our app was a webview that worked on localhost and Android. The docs say it also works on iOS but we don't have an iPhone.
The process was learning Functional Reactive Programming, then learning reflex-frp, then getting a contract with obsidian (creators of reflex) for one hour a week where we could ask questions.
( https://github.com/reflex-frp/reflex-platform )
We had a grant requirement to create a phone client for Tahoe-LAFS, a Python application with a bunch of dependencies, including ZFEC, a forward error correction library.
( https://tahoe-lafs.readthedocs.io/ )
( https://github.com/tahoe-lafs/zfec/ )
We needed bug for bug compatibility with the Python codebase, so I ran Tahoe on localhost and tested the Haskell client against the Python server. We used servant to build the API, since it builds both client and server side from the same description.
- Resurrection/modernization of an old Haskell+Haste project (boardgame Yinsh)
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Exploring ideas in Haskell
The type classes do take a toll on performance, but in reflex-platform we change GHC's default flags to make the situation a lot better. It's still not ideal, but our performance winds up being OK for real applications. The most important part is that the performance scales reasonably well as the application grows. It might probably be good at some point to use backpack instead of a typeclass so that specialization can be enforced - though I'd prefer if GHC gave a way to just force specialization more effectively.
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Any News On Haskell For Android ?
Obelisk / reflex-platform contain nix-based solutions to building Haskell code for mobile, so you might be interested in checking out how they do it (or just using them).
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Creating a Haskell Application Using Reflex. Part 1
In this series of posts, we will describe how a Haskell web application can be developed using reflex-platform. reflex-platform offers reflex and reflex-dom packages. reflex package is the Haskell implementation of Functional reactive programming (FRP). reflex-dom library contains a large number of functions, classes, and types used when dealing with DOM. The packages are separated as it is possible to use the FRP approach not only for web-development. We will develop theTodo List application that allows carrying out various manipulations on the task list.
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[JOBS] Obsidian Systems is Hiring
reflex-platform
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Setting up Reflex with VS Code in WSL
To clarify the situation, the canonical way to develop reflex-dom projects is to start from the reflex-platform. See here: https://github.com/reflex-frp/reflex-platform/blob/develop/docs/project-development.rst
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Nix - WSL - no C compiler provided for this platform
This might also be coming from the tests of the library (even if they can run in the browser, their tests might not). You can disabled tests using an overrides attribute in project.nix (if using reflex-stone). You can see what it should look like here : https://github.com/reflex-frp/reflex-platform/blob/develop/project/default.nix#L79. You should add this attribute at the same level where "useWarp = true;" is. This should then have lines like "diagrams = pkgs.haskell.lib.dontCheck super.diagrams;" for example if you want to disable the tests for the diagrams package.
What are some alternatives?
obelisk - Functional reactive web and mobile applications, with batteries included.
swagger-petstore - swagger-codegen contains a template-driven engine to generate documentation, API clients and server stubs in different languages by parsing your OpenAPI / Swagger definition.
Yampa - Functional Reactive Programming domain-specific language for efficient hybrid systems
ogmarkup - A lightweight markup language for story writers
servant - Main repository for the servant libraries — DSL for describing, serving, querying, mocking, documenting web applications and more!
googleplus - Pure Haskell implementation of the Google+ API
hackcell - Apecs + SDL2 roguelike
vscode-ghc-simple - Simple GHC (Haskell) integration for VSCode
android-lint-summary - Prettier display of Android Lint issues
nixkell - A simple Nix-Haskell skeleton
scalp-webhooks - Locally QA remote webhooks
duplo - A opinionated, framework-less build tool for web applications