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Asset (CDN) invalidation should also get triggered on asset alteration (rotate, resize, etc). #4379

nateiler opened this issue Jun 6, 2019 · 1 comment


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commented Jun 6, 2019

I noticed that asset invalidation is only triggered when an asset is deleted. However, if you edit an asset (ex: rotate it via the editor), this should also trigger invalidation.

Furthermore, in order to invalidate transforms it's probably wise to support wildcard invalidation; though this may be specific to the provider.

As an example, via AWS S3 / Cloudfront we'll need to invalidate:
path/to/asset/file.jpg and path/to/asset/*/file.jpg The /*/ catches all the image transforms


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commented Jun 6, 2019

To add to this, here's what we are doing to hook-in via element afterSave (which targets aws/cloudfront assets specifically).

       /** @var Asset $asset */
        $asset = $event->sender;
        if (! $asset instanceof Asset) {

        /** @var Volume $volume */
        $volume = $asset->getVolume();
        if (! $volume instanceof Volume) {

        $subfolder = $volume->subfolder ? '/' . $volume->subfolder : '';
        $path = $subfolder .
            '/' . $asset->getPath($asset->getFilename());
        $transformerPath = $subfolder . '/' .
            //remove the filename from the path
            str_replace($asset->getFilename(), '', $asset->getPath()) .
            '*/' . $asset->getFilename();

        // using instance profile
        $client = new CloudFrontClient([
            'region' => static::AWS_DEFAULT_REGION,
            'version' => 'latest',

        $result = $client->createInvalidation([
            'DistributionId' => $volume->cfDistributionId,
            'InvalidationBatch' => [
                'CallerReference' => 'Craft-' . StringHelper::randomString(24),
                'Paths' => [
                    'Items' => [
                    'Quantity' => 2,

I've tried to following the logic here \craft\awss3\Volume::invalidateCdnPath and I think the path might be missing subfolder (see my above code). Just a heads up (I'm not 100% sure though).

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