Save Twilio Video Compositions to AWS S3 bucket | PHP Script

save-twilio-compositions-to-s3-bucket.php

<?php
//
// You'll need to install the following composer packages:
// "twilio/sdk": "^6.20",
// "aws/aws-sdk-php": "~3.0",
// "guzzlehttp/guzzle": "^7.0"

ini_set( 'memory_limit', '-1' );
set_time_limit(0);

require 'vendor/autoload.php';

use Aws\S3\Exception\S3Exception;
use Aws\S3\S3Client;
use Twilio\Rest\Client;

class App {

    const TWILIO_BASE_VIDEO_URL = 'https://video.twilio.com';
    const TWILIO_API_KEY = 'X';
    const TWILIO_API_SECRET = 'X';
    const TWILIO_COMPOSITION_MEDIA_PATH = '/v1/Compositions/%CompositionSid%/Media';

    const AWS_ACCESS_KEY_ID = 'X';
    const AWS_SECRET_ACCESS_KEY = 'X';
    const AWS_BUCKET = 'X';
    const AWS_DEFAULT_REGION = 'eu-central-1';

    public function __construct()
    {
        $this->saveCompositionMedia();
    }

    function saveCompositionMedia()
    {
        $compositionSid = $_POST['CompositionSid'];

        $client = new Client(self::TWILIO_API_KEY, self::TWILIO_API_SECRET);
        $compositionPath = str_replace("%CompositionSid%", $compositionSid, self::TWILIO_COMPOSITION_MEDIA_PATH);
        $requestUrl = sprintf("%s%s", self::TWILIO_BASE_VIDEO_URL, $compositionPath);
        $response = $client->request('GET', $requestUrl);

        $responseContent = $response->getContent();
        if (!empty($responseContent) && isset($responseContent['redirect_to'])) {
            $redirectUri = $responseContent['redirect_to'];
            $fileContent = file_get_contents($redirectUri);

            $fileUrl = $this->uploadToS3($fileContent);
            return $fileUrl;
        }
    }

    function uploadToS3($fileContent): string {
        $env = $_GET['env'];

        $fileName = 'filename.mp4';
        $filePath = $env . '/' . $fileName;

        $s3 = new S3Client([
            'version' => 'latest',
            'region'  => self::AWS_DEFAULT_REGION,
            'credentials' => [
                'key'    => self::AWS_ACCESS_KEY_ID,
                'secret' => self::AWS_SECRET_ACCESS_KEY,
            ]
        ]);

        try {
            // Upload data.
            $result = $s3->putObject([
                'Bucket' => self::AWS_BUCKET,
                'Key'    => $filePath,
                'Body'   => $fileContent,
            ]);

            return $result['ObjectURL'] . PHP_EOL;
        } catch (S3Exception $e) {
            return $e->getMessage() . PHP_EOL;
        }
    }
}

new App();

The script can be used as a Status Callback URL when creating video compositions in Twilio.
It will be called by Twilio, by HTTP POST Request, with the following payload:

{
    "CompositionSid": "x"
}