How to upload multiple files which is stored as buffer to s3 bucket using node js

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Node.js

AWS

I have unzipped the zip files to buffer.Now I need to upload those unzipped files from buffer to S3 bucket using node js.Kindly help me to proceed.

What I have tried:

I can upload the files from my local drive to S3.But I need to upload the files which is stored in buffer.The below code says - downloading zip file from s3 and extracting to buffer.Now I need to upload those extracted files to S3 Bucket

var data = [], dataLen = 0;
s3.getObject(params)

    .on('httpData', function (chunk) {

    data.push(chunk);
    dataLen += chunk.length;

   // file.write(chunk);

}).

on('httpDone', function (err) {
    if (err) { 
        console.log(err);
    }

    var buf = new Buffer(dataLen);

    for (var i = 0, len = data.length, pos = 0; i < len; i++) {
        data[i].copy(buf, pos);
        pos += data[i].length;
    }

     var zip = new AdmZip(buf);

    var zipEntries = zip.getEntries();
    console.log(zipEntries.length)

    for (var i = 0; i < zipEntries.length; i++)
        console.log(zip.readAsText(zipEntries[i]));