How to get the full url for an asset in Controller?

Question

I need to generate some JSON content in controller and I need to get the full URL to an uploaded image situated here : /web/uploads/myimage.jpg.

How can

Answer 1

Method app.request.uriForPath() gives an absolute URL from a path. Helper asset() gives the path of an asset.

{{ app.request.uriForPath(asset('bundles/mybundle/images/name.png')) }}

It's important to have both for the case where the application is not at the root of the domain, for eg:

http://mydomain.com/myapp/app.php

Answer 2

This solution doesn't require adding any variable or parameter on config and is the same function that is used by Twig for {{ absolute_url() }}

public function yourAction(AssetsHelper $assetsHelper, HttpFoundationExtension $httpExtension)
{
    $assetsPath = $assetsHelper->getUrl('/img/test.jpg');
    $assetFullUrl = $httpExtension->generateAbsoluteUrl($assetPath);
}

The complete url of your asset will be on $assetFullUrl

Answer 3

This one works for me

$baseurl = $this->getRequest()->getScheme() . '://' . $this->getRequest()->getHttpHost() . $this->getRequest()->getBasePath();

Answer 4

You can use the templating.helper.assets service.

First define your assets base URL :

# app/config/config.yml
framework:
    templating:
        assets_base_url: "http://www.mywebsite.com/"

Then just call the service from within your controller, command or wherever you are :

<?php

// src/Acme/Bundle/DemoBundle/Controller/DemoController.php

namespace Acme\Bundle\DemoBundle\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\Controller;

class DemoController extends Controller
{
    public function indexAction()
    {
        $myAssetUrl = $this
            ->get('templating.helper.assets')
            ->getUrl('bundles/acmedemo/js/main.js', $packageName = null)
        ;

        // $myAssetUrl is "http://www.mywebsite.com/bundles/acmedemo/js/main.js"

        return array();
    }
}

Answer 5

The best solution would be IMHO to look at Twig's implementation of asset, which you can find in:

\Symfony\Bundle\TwigBundle\Extension\AssetsExtension

in the method:

public function getAssetUrl($path, $packageName = null, $absolute = false, $version = null)

which basically uses the templating.helper.assets service similar to @iamdto's answer:

$url = $this->container->get('templating.helper.assets')->getUrl($path, $packageName, $version);

Or directly use the AssetsExtension service or class respectively.

Answer 6

For CDNs, you can also inject the Packages directly into your service.

First the asset base url in config.yml:

framework:
    assets:
        base_url:
            - 'http://cdn.mysite.com'

Then the fun part:

namespace App\Service;

use Symfony\Component\Asset\Packages;

class SomeClass
{
    private $packages;

    public function __construct(Packages $packages)
    {
        $this->packages = $packages;
    }

    public function proxyToAssetUrl(string $path): string
    {
        return $this->packages->getUrl($path);
    }
}

If you have autowiring enabled then you won't need to configure anything in your services.yml, otherwise something like:

services:
    App\Service\SomeClass:
        class: App\Service\SomeClass
        arguments: ['@assets.packages']