s3.head()

About

Low level method for sending HEAD requests to the S3 REST API.

Reference

s3.head(path, callback)

• 'path' - the S3 Path.
• 'callback' - the callback that is executed when the processing finishes. It has a couple of arguments: error and result.
• If there's an error, the callback receives the error argument as Error instance.
• If the error argument is null, then the response argument contains the response.headers object as returned by the node.js core HTTPS client.