Nim has two famous web frameworks for frontend and backend development - Jester and Karax, but this post not about them.
This post about HappyX web framework.
In HappyX a lot of things runs at compile-time due to metaprogramming (macro-oriented). It's mean that your web application will be faster than more other apps created in other web frameworks.
In HappyX you can write both server-side and client-side applications with the same code. This allows developers spend less time to development.
Here also a LOT of syntax sugar due to DSL (Domain-specific language), ex:
# Server-side application example
import happyx
# declare server at http://127.0.0.1:5000
serve "127.0.0.1", 5000:
# Will match /user/id100, /user/id0, /user/id25, etc.
# Don't match /user/idSomeId
get "/user/id$id:int":
# Respond JSON
# `id` is immutable variable
return {"response": fmt"Hello, user[{id}]"}
# Will match /post/c0ffe, /post/babe, /post/cafe, etc.
# Don't match /post/SomeId
get "/post/$postId:/[a-fA-F0-9]+/":
# Respond JSON
# `postId` is immutable variable
return {"response": postId}
There are also CLI for creating, building and serving your projects!
hpx create --name my_project --kind SPA --use-tailwind
cd my_project
hpx build
hpx dev --reload
You can also convert HTML files into HappyX files with html2tag command:
hpx html2tag source.html --output output
Frontend Example
import happyx
# Declare our application and set target element with id="app"
appRoutes "app":
# Will be at example.com/#/home
"/home":
tDiv(class = "someClass"): # equal to <div class="someClass">
"Hello, world!" # equal to Hello, world!
Backend Example
import happyx
# Declare our application
serve "127.0.0.1", 5000:
# will be at http://127.0.0.1:5000/
get "/":
# plain/text
return "Hello, world!
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