How to upload files to S3 bucket from url directly

I am getting some MMS messages from my users. Those MMS are coming via twilio. So twilio storing those files into their server and I can visit those files from twilio. But in my case, I need to store those files into S3 and show into our system from S3. I can store those files into my local folder or my server. But I am not finding any way to store file into the S3 directly from the url. This is what I have done to store into the local directory from url.

// url of my file. Mostly it will be image.
$url = 'urlofmyfile';
// Path where I am saving. Keeping for jpg for now
$img = 'file/sms/file.jpg';
// saving the file into the folder
file_put_contents($img, file_get_contents($url));

And this is how I am saving my files into S3 if anyone want to upload it directly into my system. For example if any user want to upload their profile picture.

public function saveToS3Bucket($uploadFileName, $imageTmpName) {
    $s3Client = new AwsS3S3Client([
        'version' => env('S3_BUCKET_VERSION'),
        'region'  => env('S3_BUCKET_REGION'),
        'credentials' => array(
            'key'    => env('S3_BUCKET_KEY'),
            'secret' => env('S3_BUCKET_SECRET'),
        )
    ]);
    try {
        $s3Client->putObject([
            'Bucket' => env('S3_BUCKET_NAME'),
            'Key'    => $uploadFileName,
            'SourceFile' => $imageTmpName,
            'StorageClass' => 'REDUCED_REDUNDANCY',
            'ACL' => 'public-read'
        ]);
        return true;
    } catch (S3Exception $e) {
        echo $e->getMessage() . PHP_EOL;
        return false;
    }
}

Those above codes are working fine. But I am not finding any way to store into S3 from url. Please note I am writing code in CakePHP.

Answer

Have a look at the Twilio Function below, it should point you in the right direction.

It was derived from this Twilio Blog:

Encrypting and Storing Twilio Flex Recordings Off-site

const axios = require('axios');
let AWS = require('aws-sdk');
const S3UploadStream = require('s3-upload-stream');

exports.handler = async function(context, event, callback) {

// Set the region
AWS.config.update({region: 'us-west-2'});
AWS.config.update({ accessKeyId: context.AWSaccessKeyId, secretAccessKey: context.AWSsecretAccessKey });

// The name of the bucket that you have created
const BUCKET_NAME = 'winston';

const fileUrl = "https://a.b.twil.io/assets/KittehWinston.jpg";
const fileName = "winston.jpg";

const s3Stream = S3UploadStream(new AWS.S3());

// call S3 to retrieve upload file to specified bucket
let upload = s3Stream.upload({Bucket: BUCKET_NAME, Key: fileName, ContentType: 'image/jpeg', ACL: 'public-read'   });

const fileUpload = await uploadFile(fileUrl, upload)
.then(result => callback(null, `success: ${JSON.stringify(result)}`))
.catch(err => callback(err.message));

async function uploadFile (url, upload) {

    const response = await axios({
      url,
      method: 'GET',
      responseType: 'stream'
    })
  
    response.data.pipe(upload);
  
    return new Promise((resolve, reject) => {
      upload.on('uploaded', resolve)
      upload.on('error', reject)
    })
  }
};