move file from one folder to another in aws s3 nodejs

1var AWS = require('aws-sdk');
2AWS.config.update({
3     accessKeyId: 'xxx',
4     secretAccessKey: 'xxx'
5    });
6var s3 = new AWS.S3();
7var params = {
8    Bucket : 'bucketname', /* Another bucket working fine */ 
9    CopySource : 'bucketname/externall/1.txt', /* required */
10    Key : "1.txt", /* required */
11    ACL : 'public-read',
12};
13s3.copyObject(params, function(err, data) {
14    if (err)
15        console.log(err, err); // an error occurred
16    else {
17        console.log(data); // successful response
18    }
19});