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From Laravel to Nexy

In Nexy a Laravel route and its controller method become one file under src/routes/: a Blade view becomes a .nexy page, $request->validate a Pydantic model, and Eloquent an ORM you pick, such as SQLModel.

Each section below shows a Laravel habit, then the same thing in Nexy.

A route

routes/api.php
use Illuminate\Support\Facades\Route; Route::get('/hello', fn () => ['message' => 'Hello']);

There is no routes file: the file path is the URL, and the function name is the method.

src/routes/api/hello.py
async def GET():    return {"message": "Hello"}

Route parameters and where

routes/api.php
Route::get('/users/{id}', fn (int $id) => ['id' => $id])->whereNumber('id');

{id} is a [id] segment, and the int annotation is the constraint: /api/users/abc answers 404.

src/routes/api/users/[id].py
async def GET(id: int):    return {"id": id}

An optional {slug?} or a {path} matching slashes (->where('path', '.*')) is a [...path].py catch-all.

Controllers

app/Http/Controllers/NoteController.php
class NoteController extends Controller{    public function show(int $id) { return ['id' => $id]; }     public function destroy(int $id) { return ['deleted' => $id]; }}
routes/api.php
Route::get('/notes/{id}', [NoteController::class, 'show']);Route::delete('/notes/{id}', [NoteController::class, 'destroy']);

The controller methods are the functions of the file, named after the verb:

src/routes/api/notes/[id].py
async def GET(id: int):    return {"id": id}  async def DELETE(id: int):    return {"deleted": id}

For classes with injected services, as in a Laravel controller, see the modular router.

Query strings

app/Http/Controllers/SearchController.php
public function __invoke(Request $request){    return ['q' => $request->query('q', ''), 'page' => (int) $request->query('page', 1)];}
src/routes/api/search.py
async def GET(q: str = "", page: int = 1):    return {"q": q, "page": page}

Validation and Form Requests

app/Http/Controllers/ItemController.php
public function store(Request $request){    $data = $request->validate([        'name' => 'required|string|max:100',        'price' => 'required|numeric|gt:0',    ]);     return response()->json($data, 201);}

The rules are a Pydantic model. A body that breaks one answers 422 with the field and the rule, as Laravel does:

src/routes/api/items.py
from pydantic import BaseModel, Field from nexy.http import JSONResponse  class NewItem(BaseModel):    name: str = Field(max_length=100)    price: float = Field(gt=0)  async def POST(item: NewItem):    return JSONResponse(item.model_dump(), status_code=201)

Route groups with a prefix and middleware

routes/api.php
Route::prefix('admin')->middleware('admin')->group(function () {    Route::get('/stats', fn () => ['users' => 3]);});
app/Http/Middleware/EnsureAdmin.php
public function handle(Request $request, Closure $next){    abort_unless($request->header('X-Role') === 'admin', 403, 'Admins only');     return $next($request);}

The folder is the prefix, and its dependencies.py is the middleware of the group:

src/routes/admin/stats.py
async def GET():    return {"users": 3}
src/routes/admin/dependencies.py
from nexy.http import Header, HTTPException  def require_admin(x_role: str = Header("")) -> None:    if x_role != "admin":        raise HTTPException(status_code=403, detail="Admins only")  dependencies = [require_admin]

Global middleware

app/Http/Middleware/AddAppHeader.php
public function handle(Request $request, Closure $next){    $response = $next($request);    $response->headers->set('X-App', 'demo');     return $response;}

A middleware.py at the routes root wraps every request:

src/routes/middleware.py
from nexy.http import Request  async def middleware(request: Request, call_next):    response = await call_next(request)    response.headers["x-app"] = "demo"    return response

Blade views

routes/web.php
Route::get('/users', fn () => view('users', ['users' => [['name' => 'Ada'], ['name' => 'Alan']]]));
resources/views/users.blade.php
@extends('layouts.app') @section('content')<ul>  @foreach ($users as $user)  <li>{{ $user['name'] }}</li>  @endforeach</ul>@endsection

The route and the view are one .nexy file:

src/routes/users.nexy
---users = [{"name": "Ada"}, {"name": "Alan"}]---<ul>  {% for user in users %}  <li>{{ user.name }}</li>  {% endfor %}</ul>
Blade Jinja2 in .nexy
{{ $name }} (escaped) {{ name | e }}: .nexy does not escape by default
{!! $html !!} {{ html | safe }}
@if ($user) ... @endif {% if user %} ... {% endif %}
@foreach ($items as $item) {% for item in items %}
@php ... @endphp Python in the frontmatter

Layouts and @yield

resources/views/layouts/app.blade.php
<!DOCTYPE html><html>  <body>@yield('content')</body></html>

A layout.nexy wraps every page of its folder, with no @extends in the pages:

src/routes/layout.nexy
---children: prop[NexyElement]---<!DOCTYPE html><html>  <body>{{ children | safe }}</body></html>

Blade components

resources/views/components/card.blade.php
@props(['title'])<article>  <h2>{{ $title }}</h2>  {{ $slot }}</article>
<x-card title="Latest"><p>This week</p></x-card>
src/components/Card.nexy
---title: prop[str]---<article>  <h2>{{ title }}</h2>  <Slot /></article>
src/routes/index.nexy
---from "@/components/Card.nexy" import Card---<Card title="Latest">  <p>This week</p></Card>

@ is src/: nx new writes useAliases = {"@": "src"} in nexyconfig.py.

Forms, @csrf and redirects

resources/views/notes.blade.php
<form method="POST" action="{{ route('notes.store') }}">  @csrf  <input name="title">  <button type="submit">Add</button></form>
app/Http/Controllers/NoteController.php
public function store(Request $request){    Note::create($request->validate(['title' => 'required']));     return back();}

An action is the controller method the form posts to. Its parameters are the fields, and the visitor goes back() with a 303 on success:

src/actions/notes.py
from nexy.decorators import Action NOTES: list[str] = []  @Actionasync def add_note(title: str) -> None:    NOTES.append(title)
src/routes/notes.nexy
---from src.actions.notes import NOTES---<form method="post" action="{{ __actions_path['add_note'] }}">  <input name="title">  <button type="submit">Add</button></form><ul>  {% for note in NOTES %}  <li>{{ note }}</li>  {% endfor %}</ul>

Eloquent and migrations

app/Models/Post.php
class Post extends Model{    protected $fillable = ['title', 'published'];} $posts = Post::where('published', true)->get();

Nexy has no ORM of its own. nx new can scaffold SQLModel, SQLAlchemy or Tortoise-ORM; with SQLModel:

src/models/post_model.py
from sqlmodel import Field, SQLModel  class Post(SQLModel, table=True):    id: int | None = Field(default=None, primary_key=True)    title: str    published: bool = False
src/routes/api/posts/published.py
from sqlmodel import Session, select from src.configs.db import enginefrom src.models.post_model import Post  async def GET():    with Session(engine) as session:        posts = session.exec(select(Post).where(Post.published)).all()    return {"titles": [post.title for post in posts]}
Artisan Nexy
php artisan make:migration nx migrate -m "add posts"
php artisan migrate nx migrate --upgrade

See Databases.

abort(404) and error views

routes/web.php
Route::get('/posts/{slug}', function (string $slug) {    abort_unless(isset(POSTS[$slug]), 404);    return view('post', ['post' => POSTS[$slug]]);});

notFound() is abort(404), and notfound.nexy is resources/views/errors/404.blade.php:

src/routes/posts/[slug].nexy
---from nexy import notFound POSTS = {"hello": "Hello, world"} slug: prop[str]if slug not in POSTS:    notFound()---<h1>{{ POSTS[slug] }}</h1>
src/routes/notfound.nexy
<h1>Not found</h1>

Sessions

app/Http/Controllers/LoginController.php
public function store(Request $request){    session(['user' => $request->input('name')]);     return ['user' => session('user')];}
nexyconfig.py
from nexy.core.models import NexyConfigModel  class NexyConfig(NexyConfigModel):    useAliases = {"@": "src"}    useSession = {"secret_key": "change-me"}
src/routes/api/login.py
from pydantic import BaseModel from nexy.http import Request  class Login(BaseModel):    name: str  async def POST(request: Request, body: Login):    request.session["user"] = body.name    return {"user": body.name}

A page reads the session with useSession().

Queues and dispatch

app/Http/Controllers/SignupController.php
SendWelcomeEmail::dispatch($user); return response()->json(['queued' => true], 202);

For work that can run after the answer, FastAPI's background tasks are enough:

src/routes/api/signup.py
from nexy.http import BackgroundTasks, JSONResponse SENT: list[str] = []  def send_welcome_email(email: str) -> None:    SENT.append(email)  async def POST(email: str, tasks: BackgroundTasks):    tasks.add_task(send_welcome_email, email)    return JSONResponse({"queued": True}, status_code=202)

For retries and workers on other machines, use a Python queue such as Celery, RQ or arq.

Caching a page

Route::get('/blog', BlogController::class)->middleware('cache.headers:public;max_age=60');
src/routes/blog/index.nexy
---revalidate = 60---<h1>Blog</h1>

The page is cached per URL and rendered again in the background after 60 seconds.

.env and config/

Laravel Nexy
.env + config/database.php .env with DATABASE_URL, read by src/configs/db.py
config/cors.php useCORS in nexyconfig.py
APP_KEY for sessions useSession = {"secret_key": ...}
public/ public/, served at /

Livewire and Inertia

Livewire's server-driven components map to actions called from a page. Inertia's React or Vue pages map to .tsx or .vue routes, or to islands inside a .nexy page. See Actions and Islands.

Tests

tests/Feature/HelloTest.php
public function test_hello(): void{    $this->getJson('/api/hello')->assertExactJson(['message' => 'Hello']);}
tests/test_hello.py
from fastapi.testclient import TestClient from nexy.app import app  def test_hello():    assert TestClient(app).get("/api/hello").json() == {"message": "Hello"}

Running

Laravel Nexy
laravel new nx new
php artisan serve nx dev
php artisan route:list /docs
php artisan test nx test
npm run build nx build

Next steps

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