Laravel Azure Blob Storage Cache Images - php

Question

this is my scenario:
I have a Laravel 6.x application and I'm using the FlySystemAzureBlobStorage package to store images on Azure Blob Storage.
Then I want to use the InterventionImageCache package to get and cache the images for faster client's downloads in different sizes.
I've already done it in this way:
public static function getImageResponseForApi($storageDiskName, $imagePath, $width = null, $height = null)
{
//check if the image exists on disk
$exists = empty($storageDiskName) ?
Storage::exists($imagePath) :
Storage::disk($storageDiskName)->exists($imagePath);
if ($exists) {
$image = empty($storageDiskName) ?
Storage::get($imagePath) :
Storage::disk($storageDiskName)->get($imagePath);
if (!empty($width) || !empty($height)) {
//use the image cache function to get the cached image if exists
$image = \Image::cache(function ($ima) use ($image, $width, $height) {
//check if height and with are higher than original or not
$ima->make($image)->resize($width, $height, function ($constraint) {
$constraint->aspectRatio();
$constraint->upsize();
});
});
}
$sizes = getimagesizefromstring($image);
$headers = [
'Content-Length' => strlen($image),
'Content-Type' => $sizes["mime"]
];
return \Response::make($image, 200, $headers);
} else {
return null;
}
}
There is a problem working in this way: I must download the image from azure blob storage before the system can check if a resized cached version of it exists.
The Azure package i'm using doesn't provide the possibility to get the image paths, so I can't find another solution to my problem.
So, is there a way to achieve the image caching without I have to download the file every time?

Answer 1

I use a separate route for showing/caching the image in my blade.
I store the image as BLOB in MYSQL PRODUCT table identified by product_id
BLADE:
<img src="/dbimage/{{$product->id}}.png" >
ROUTE:
Route::get('/dbimage/{id}',[ProductImageController::class, 'getImage']);
CONTROLLER:
class ProductImageController extends Controller
{
public function getImage($prodcutImageID){
$productID=explode(".",$prodcutImageID);
$rendered_buffer= Product::all()->find($productID[0])->image;
$response = Response::make($rendered_buffer);
$response->header('Content-Type', 'image/png');
$response->header('Cache-Control','max-age=2592000');
return $response;
}
}
This makes the browsers cache the images