Node.js & Amazon S3: How to iterate through all files in a bucket?

Question

Is there any Amazon S3 client library for Node.js that allows listing of all files in S3 bucket?

The most known aws2js and knox don\'t seem to have this functionalit

Answer 1

I ended up building a wrapper function around ListObjectsV2, works the same way and takes the same parameters but works recursively until IsTruncated=false and returns all the keys found as an array in the second parameter of the callback function

const AWS = require('aws-sdk')
const s3 = new AWS.S3()

function listAllKeys(params, cb)
{
   var keys = []
   if(params.data){
      keys = keys.concat(params.data)
   }
   delete params['data']

   s3.listObjectsV2(params, function(err, data){
     if(err){
       cb(err)
     } else if (data.IsTruncated) {
       params['ContinuationToken'] = data.NextContinuationToken
       params['data'] = data.Contents
       listAllKeys(params, cb)
     } else {
       keys = keys.concat(data.Contents)
       cb(null,keys)
     }
   })
}