The Mercure ComponentEdit this page
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Mercure is an open protocol allowing to push data updates to web browsers and other HTTP clients in a convenient, fast, reliable and battery-friendly way. It is especially useful to publish real-time updates of resources served through web APIs, to reactive web and mobile applications.
The Mercure Component implements the "publisher" part of the Mercure Protocol.
$ composer require symfony/mercure
If you install this component outside of a Symfony application, you must
vendor/autoload.php file in your code to enable the class
autoloading mechanism provided by Composer. Read
this article for more details.
The following example shows the component in action:
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// change these values accordingly to your hub installation define('HUB_URL', 'https://demo.mercure.rocks/.well-known/mercure'); define('JWT', 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJtZXJjdXJlIjp7InN1YnNjcmliZSI6WyJmb28iLCJiYXIiXSwicHVibGlzaCI6WyJmb28iXX19.LRLvirgONK13JgacQ_VbcjySbVhkSmHy3IznH3tA9PM'); use Symfony\Component\Mercure\Jwt\StaticJwtProvider; use Symfony\Component\Mercure\Publisher; use Symfony\Component\Mercure\Update; $publisher = new Publisher(HUB_URL, new StaticJwtProvider(JWT)); // Serialize the update, and dispatch it to the hub, that will broadcast it to the clients $id = $publisher(new Update('https://example.com/books/1.jsonld', 'Hi from Symfony!', ['target1', 'target2']));
Read the full Mercure integration documentation to learn about all the features of this component and its integration with the Symfony framework.