need script for multipart upload to glacier - php, JS or nodeJS

Job ID: 35536458

Budget: £10 – £20 GBP

The documentation provides on the steps for multipart upload. But its not clear on how to specify the file that needs to be uploaded.

https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/glacier-example-multipart-upload.html

If you could explain and provide a working script either in php, JS or in nodeJS, and once i am able to upload the file, the project will be considered as complete.
Related categories: PHP JavaScript Amazon Web Services Node.js Amazon S3