Laravel integration for htmx.
Supported Laravel Versions >= v8.80.0.
You can install the package via composer:
composer require mauricius/laravel-htmx
You can publish the config file with:
php artisan vendor:publish --tag="laravel-htmx"
This is the contents of the published config file:
return [
];
To install htmx please browse their documentation
You can resolve an instance of the HtmxRequest
from the container which provides shortcuts for reading the htmx-specific request headers.
use Mauricius\LaravelHtmx\Http\HtmxRequest;
Route::get('/', function (HtmxRequest $request)
{
// always true if the request is performed by Htmx
$request->isHtmxRequest();
// indicates that the request is via an element using hx-boost
$request->isBoosted();
// the current URL of the browser
$request->getCurrentUrl();
// true if the request is for history restoration after a miss in the local history cache
$request->isHistoryRestoreRequest()
// the user response to an hx-prompt
$request->getPromptResponse();
// the id of the target element if it exists
$request->getTarget();
// the name of the triggered element if it exists
$request->getTriggerName();
// the id of the triggered element if it exists
$request->getTriggerId();
});
HtmxResponseClientRedirect
htmx can trigger a client side redirect when it receives a response with the HX-Redirect
header. The HtmxResponseClientRedirect
makes it easy to trigger such redirects.
use Mauricius\LaravelHtmx\Http\HtmxResponseClientRedirect;
Route::get('/', function (HtmxRequest $request)
{
return new HtmxResponseClientRedirect('/somewhere-else');
});
HtmxResponseClientRefresh
htmx will trigger a page reload when it receives a response with the HX-Refresh
header. HtmxResponseClientRefresh
is a custom response class that allows you to send such a response. It takes no arguments, since htmx ignores any content.
use Mauricius\LaravelHtmx\Http\HtmxResponseClientRefresh;
Route::get('/', function (HtmxRequest $request)
{
return new HtmxResponseClientRefresh();
});
HtmxResponseStopPolling
When using a polling trigger, htmx will stop polling when it encounters a response with the special HTTP status code 286. HtmxResponseStopPolling
is a custom response class with that status code.
use Mauricius\LaravelHtmx\Http\HtmxResponseStopPolling;
Route::get('/', function (HtmxRequest $request)
{
return new HtmxResponseStopPolling();
});
For all the remaining available headers you can use the HtmxResponse
class.
use Mauricius\LaravelHtmx\Http\HtmxResponse;
Route::get('/', function (HtmxRequest $request)
{
return with(new HtmxResponse())
->location($location) // Allows you to do a client-side redirect that does not do a full page reload
->pushUrl($url) // pushes a new url into the history stack
->replaceUrl($url) // replaces the current URL in the location bar
->reswap($option) // Allows you to specify how the response will be swapped
->retarget($selector); // A CSS selector that updates the target of the content update to a different element on the page
});
Additionally, you can trigger client-side events using the addTrigger
methods.
use Mauricius\LaravelHtmx\Http\HtmxResponse;
Route::get('/', function (HtmxRequest $request)
{
return with(new HtmxResponse())
->addTrigger("myEvent")
->addTriggerAfterSettle("myEventAfterSettle")
->addTriggerAfterSwap("myEventAfterSwap");
});
If you want to pass details along with the event you can use the second argument to send a body. It supports strings or arrays.
use Mauricius\LaravelHtmx\Http\HtmxResponse;
Route::get('/', function (HtmxRequest $request)
{
return with(new HtmxResponse())
->addTrigger("showMessage", "Here Is A Message")
->addTriggerAfterSettle("showAnotherMessage", [
"level" => "info",
"message" => "Here Is A Message"
]);
});
You can call those methods multiple times if you want to trigger multiple events.
use Mauricius\LaravelHtmx\Http\HtmxResponse;
Route::get('/', function (HtmxRequest $request)
{
return with(new HtmxResponse())
->addTrigger("event1", "A Message")
->addTrigger("event2", "Another message");
});
This library also provides a basic Blade extension to render template fragments.
The library provides two new Blade directives: @fragment
and @endfragment
. You can use these directives to specify a block of content within a template and render just that bit of content. For instance:
{{-- /contacts/detail.blade.php --}}
<html>
<body>
<div hx-target="this">
@fragment("archive-ui")
@if($contact->archived)
<button hx-patch="/contacts/{{ $contact->id }}/unarchive">Unarchive</button>
@else
<button hx-delete="/contacts/{{ $contact->id }}">Archive</button>
@endif
@endfragment
</div>
<h3>Contact</h3>
<p>{{ $contact->email }}</p>
</body>
</html>
With this fragment defined in our template, we can now render either the entire template:
Route::get('/', function ($id) {
$contact = Contact::find($id);
return View::make('contacts.detail', compact('contact'));
});
Or we can render only the archive-ui
fragment of the template by using the renderFragment
macro defined in the \Illuminate\View\View
class:
Route::patch('/contacts/{id}/unarchive', function ($id) {
$contact = Contact::find($id);
// The following approaches are equivalent
// Using the View Facade
return \Illuminate\Support\Facades\View::renderFragment('contacts.detail', 'archive-ui', compact('contact'));
// Using the view() helper
return view()->renderFragment('contacts.detail', 'archive-ui', compact('contact'));
// Using the HtmxResponse Facade
return \Mauricius\LaravelHtmx\Facades\HtmxResponse::renderFragment('contacts.detail', 'archive-ui', compact('contact'));
// Using the HtmxResponse class
return with(new \Mauricius\LaravelHtmx\Http\HtmxResponse())
->renderFragment('contacts.detail', 'archive-ui', compact('contact'));
});
htmx supports updating multiple targets by returning multiple partial responses with hx-swap-oop
. With this library you can return multiple fragments by using the HtmxResponse
as a return type.
For instance, let's say that we want to mark a todo as completed using a PATCH request to /todos/{id}
. With the same request, we also want to update in the footer how many todos are left:
{{-- /todos.blade.php --}}
<html>
<body>
<main hx-target="this">
<section>
<ul class="todo-list">
@fragment("todo")
<li id="todo-{{ $todo->id }}" @class(['completed' => $todo->done])>
<input
type="checkbox"
class="toggle"
hx-patch="/todos/{{ $todo->id }}"
@checked($todo->done)
hx-target="#todo-{{ $todo->id }}"
hx-swap="outerHTML"
/>
{{ $todo->name }}
</li>
@endfragment
</ul>
</section>
<footer>
@fragment("todo-count")
<span id="todo-count" hx-swap-oob="true">
<strong>{{ $left }} items left</strong>
</span>
@endfragment
</footer>
</main>
</body>
</html>
We can use the HtmxResponse
to return multiple fragments:
Route::patch('/todos/{id}', function ($id) {
$todo = Todo::find($id);
$todo->done = !$todo->done;
$todo->save();
$left = Todo::where('done', 0)->count();
return HtmxResponse::addFragment('todomvc', 'todo', compact('todo'))
->addFragment('todomvc', 'todo-count', compact('left'));
});
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