routers/googleappsscript34/ImageHandler.gs

class ImageHandler {
  handleImage(data) {
    var blob = Utilities.newBlob(data.binaryData, data.mimeType);
    var driveFile = DriveApp.createFile(blob);
    var secretManager = new SecretManager();
    var s3Uploader = new S3Uploader(secretManager.getSecret('S3_ACCESS_KEY'), secretManager.getSecret('S3_SECRET_KEY'));
    s3Uploader.uploadFile(driveFile);
  }
}