List all S3 Objects using JavaScript SDK

.js

/*
 * File invokes s3#listObjects recursively to retrieve all objects
 */
const AWS = require('aws-sdk')
const s3 = new AWS.S3();

let args = {
    'Bucket': ADD_BUCKET_NAME_HERE,
    'Prefix': ADD_PATH_PREFIX_HERE_OR_REMOVE_THIS_ATTRIBUTE
};

function listObjects(allObjects, startingToken) {
    if (startingToken !== undefined) {
        args.ContinuationToken = startingToken;
    }
    const listObjectsPromise = s3.listObjectsV2(args).promise();
    return listObjectsPromise.then((response) => {
        if (response.NextContinuationToken) {
            // Recursive call to retrieve further objects
            return listObjects(allObjects, response.NextContinuationToken).then((results) => {
                allObjects = allObjects || []
                return allObjects.concat(results);
            });
        } else {
            return response.Contents.map(item => item.Key);
        }
    }, (err) => {
        console.log(err);
        return []
    });
}

listObjects().then((results) => {
    console.log(results);
});