laravel-livewire

<objective> Covers Livewire 4 on Laravel 13: reactive class-based components with Blade views, wire:model two-way binding and its modifiers (.blur, .live, .debounce), actions, component lifecycle hooks, forms/validation, events (dispatch/listen), Alpine.js integration ($wire, @entangle), file uploads, component nesting, loading states, SPA navigation, testing, security (auth/rate limiting), and the Volt (single-file components) and Folio (file-based routing) sub-features, including Precognition live validation and Reverb WebSocket integration. </objective>

Laravel Livewire

Agent Workflow (MANDATORY)

Before ANY implementation, spawn 3 agents in parallel, one Agent call each with a name:

1. fuse-ai-pilot:explore-codebase - Check existing Livewire components
2. fuse-ai-pilot:research-expert - Verify Livewire 4 patterns via Context7
3. mcp__context7__query-docs - Check specific Livewire features

After implementation, run fuse-ai-pilot:sniper for validation.

---

Overview

Feature	Description
Components	Reactive PHP classes with Blade views
wire:model	Two-way data binding
Actions	Call PHP methods from frontend
Events	Component communication
Volt	Single-file components
Folio	File-based routing

---

Critical Rules

1. Always use wire:key in loops
2. Use wire:model.live.blur for live validation (Livewire 4.1+: plain .blur only syncs client state), not .live everywhere
3. Debounce search inputs with .debounce.300ms
4. #[Locked] for sensitive IDs
5. authorize() in destructive actions
6. protected methods for internal logic

---

Decision Guide

Component Type

Component choice?
├── Complex logic → Class-based component
├── Simple page → Volt functional API
├── Medium complexity → Volt class-based
├── Quick embed → @volt inline
└── File-based route → Folio + Volt

Data Binding

Binding type?
├── Form fields (live validation) → wire:model.live.blur
├── Search input → wire:model.live.debounce.300ms
├── Checkbox/toggle → wire:model.live
├── Select → wire:model
└── No sync → Local Alpine x-data

---

Reference Guide

Core Concepts (WHY & Architecture)

Topic	Reference	When to Consult
Components	components.md	Creating components
Wire Directives	wire-directives.md	Data binding, events
Lifecycle	lifecycle.md	Hooks, mount, hydrate
Forms	forms-validation.md	Validation, form objects
Events	events.md	Dispatch, listen
Alpine	alpine-integration.md	$wire, @entangle
File Uploads	file-uploads.md	Upload handling
Nesting	nesting.md	Parent-child
Loading	loading-states.md	wire:loading, lazy
Navigation	navigation.md	SPA mode
Testing	testing.md	Component tests
Security	security.md	Auth, rate limit
Volt	volt.md	Single-file components

Advanced Features

Topic	Reference	When to Consult
Folio	folio.md	File-based routing
Precognition	precognition.md	Live validation
Reverb	reverb.md	WebSockets

Templates (Complete Code)

Template	When to Use
BasicComponent.php.md	Standard component
FormComponent.php.md	Form with validation
VoltComponent.blade.md	Volt patterns
DataTableComponent.php.md	Table with search/sort
FileUploadComponent.php.md	File uploads
NestedComponents.php.md	Parent-child
ComponentTest.php.md	Testing patterns

---

Quick Reference

Basic Component

class Counter extends Component
{
    public int $count = 0;

    public function increment(): void
    {
        $this->count++;
    }

    public function render()
    {
        return view('livewire.counter');
    }
}

Volt Functional

<?php
use function Livewire\Volt\{state};

state(['count' => 0]);

$increment = fn() => $this->count++;
?>

<button wire:click="increment">{{ $count }}</button>

Wire Directives

<input wire:model.live.blur="email">
<input wire:model.live.debounce.300ms="search">
<button wire:click="save" wire:loading.attr="disabled">Save</button>

---

Best Practices

DO

• Use wire:key in @foreach loops
• Debounce search/filter inputs
• Use Form Objects for reusable logic
• Test with Livewire::test()
• #[Locked] for IDs, #[Computed] for derived data

DON'T

• wire:model.live on every field
• Query in render() method
• Forget authorization in actions
• Skip wire:key in loops
• Store sensitive data in public properties

---

Laravel 13 Notes

Livewire 4 on Laravel 13

Livewire 4 (current 4.4) is the current major, used by the L13 Livewire starter kit. Key points:

• Livewire 4 requirements: PHP 8.1+ / Laravel 10+ (Laravel 13 requires PHP 8.3 anyway)
• #[Locked], #[Computed], #[On] still supported
• Native single-file / multi-file components (make_command.type = sfc by default); Volt stays on 1.x (current 1.11), Folio on 1.x (current 1.2)
• Pages: Route::livewire('/dashboard', Dashboard::class) is now the recommended method (mandatory for single/multi-file components)
• Hashed endpoints: /livewire-{hash}/update (derived from APP_KEY) instead of /livewire/update — update firewall/CDN/middleware rules that target /livewire/
• wire:model.live: parallel requests; wire:poll is non-blocking

Migrating from Livewire 3

• composer require livewire/livewire:^4.0 then php artisan optimize:clear
• Renamed config: layout → component_layout (layouts::app), lazy_placeholder → component_placeholder; smart_wire_keys = true by default
• 4.1+: .blur / .change also control client-side sync → for the old behavior (network request on blur) write wire:model.live.blur
• wire:model ignores events from children (add .deep if needed); <livewire:x /> tags must be closed
• wire:transition uses the View Transitions API (modifiers removed); wire:scroll → wire:navigate:scroll
• $this->stream(): to: renamed el:; $wire.$js('name', fn) deprecated → $wire.$js.name = fn
• wire:poll.5s, $this->dispatch('event'), Form Objects (#[\Livewire\Attributes\Validate]) → unchanged