Parija Rangnekar Author

Reasons to upload files to AWS S3

Unlimited Storage

Reliability & Scalability

Laravel Integration

Versioning

High-grade Security

Cost-efficiency

We can use following way to implement AWS S3 upload in Laravel:

• Install following package-
composer require aws/aws-sdk-php-laravel “~3.0”
composer require league/flysystem-aws-S3-v3l “^1.0”
composer require league/flysystem-cached-adapter “~1.0
• Create new library for AWS connection.

\app\LibrariesAwsUtility.php

• ENV variables-

#Client info

AWS_ACCESS_KEY_ID=AKIAQQP246GMXXHSNV5I

AWS_SECRET_ACCESS_KEY=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

AWS_DEFAULT_REGION=us-west-2

AWS_BUCKET=dynafios-development-app-storage

END_POINT=https://dynafios-development-app-storage.S3.us-west-2.amazonaws.com

AWS_USE_PATH_STYLE_ENDPOINT=false

• To upload report –

//For AWS File Upload-need to include

use App\Libraries\AwsUtility;

//Start S3 bucket url change aws – nvn

$storage_path_file_path=$report_path.’/’.$report_filename;

$awsObj_result = AwsUtility::awsUploadSubmit($storage_path_file_path);

$effectiveUri=$awsObj_result->getData()->effectiveUri;

//End S3 bucket url change aws – nvn

//To save URL path in DB-

$hospital_report->awsfilename = $effectiveUri;

a- We have created temp folder in

storage\temp

b- When report is generated the name is saved in the database and file is saved in temp folder. Now for uploading to AWS bucket we use temp path and after uploading we remove the temp path.

As per requirement.

For download, we use function from LibrariesAwsUtility.php and download on the fly temporary url that does not exist after download.

//S3 file download from bucket–nvn

$awsObj_result_down = awsUtility::awsDownloadTempUrl($filename);

$effectiveUri_arr = $awsObj_result_down->getData()->effectiveUri;

$onlyfilename = $awsObj_result_down->getData()->onlyfilename;

if ($effectiveUri_arr == “Failed”) {

//In case URL not saved or link break

$S3fileDownlaod = “Failed”;

return Redirect::back()->with([

//”error” => Lang::get(“hospital.S3_filenot_found_uploaded”),

“error” => “File Not Found!!”,

]);

//REDIRECT WITH MESSAGE

}

$filename = $onlyfilename;

$tempfile = tempnam(sys_get_temp_dir(), $filename);

//COPY SIGNED URL TO TEMP FOLDER

copy($effectiveUri_arr, $tempfile);

return response()->download($tempfile, $filename);

For delete we use function from LibrariesAwsUtility.php which delete file from aws but not from db. As per requirment.

// aws S3 file delete

$awsObj_result_del = awsUtility::awsDeleteFile($filename);

if (isset($awsObj_result_del)) {

// Log::Info(‘Deleted S3 File!HospitalController-getDeleteReport() ‘);

return Redirect::back()->with([

“success” => Lang::get(“hospitals.delete_report_success”),

]);

} else {

return Redirect::back()->with([

“error” => Lang::get(“hospital.delete_report_error”),

]);

}

return Redirect::back()->with([

“success” => Lang::get(“hospitals.delete_report_success”),

]);

File can be uploaded to AWS S3 in Core PHP as below:

• Install AWS S3 PHP SDK
composer require aws/aws-sdk-php
• Create File Upload Form
• upload-to-S3.php file

require ‘vendor/autoload.php’;

use Aws\S3\S3Client;

// Instantiate an Amazon S3 client.

$S3Client = new S3Client([

‘version’ => ‘latest’,

‘region’ => ‘YOUR_AWS_REGION’,

‘credentials’ => [

‘key’ => ‘ACCESS_KEY_ID’,

‘secret’ => ‘SECRET_ACCESS_KEY’

]

]);

// Check whether file exists before uploading it

if(move_uploaded_file($_FILES[“anyfile”][“tmp_name”], “upload/” . $filename)){

$bucket = ‘YOUR_BUCKET_NAME’;

$file_Path = __DIR__ . ‘/upload/’. $filename;

$key = basename($file_Path);

try {

$result = $S3Client->putObject([

‘Bucket’ => $bucket,

‘Key’ => $key,

‘Body’ => fopen($file_Path, ‘r’),

‘ACL’ => ‘public-read’, // make file ‘public’

]);

echo “Image uploaded successfully. Image path is: “. $result->get(‘ObjectURL’);

} catch (Aws\S3\Exception\S3Exception $e) {

echo “There was an error uploading file.\n”;

echo $e->getMessage();

}

echo “Your file was uploaded successfully.”;

}else{

echo “File is not uploaded”;

}

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In Conclusion