s3-stream-download

Multipart streaming download from S3

Features

Installation

  $ npm install s3-stream-download --save

Usage

var AWS = require('aws-sdk');
var S3StreamDownload = require('./index');
var fs = require('fs');

var s3 = new AWS.S3();

var s3StreamDownload = new S3StreamDownload(s3, {Bucket: '<BUCKET>', Key:'<KEY>'});

s3StreamDownload.pipe(fs.createWriteStream('<FILENAME>'));

s3StreamDownload.on('end', function() {
    process.exit(0);
});

Documentation

new S3StreamDownload(s3, s3Params, options)

Creates a new instance of a multipart download stream. This is a readable stream that can be piped into other streams.

Arguments

• s3 - Configured aws-sdk s3 instance. Should be preconfigured with any credentials.
• s3Params - Params object that would normally be passed to s3.getObject()
• options - Options
  • downloadChunkSize - Size of each chunk in bytes. Defaults to 5MB.
  • concurrentChunks - Number of chunks to download concurrently. Defaults to 5.
  • retries - How many times a failed chunk should be retried before failing the entire download. Retries will exponentially backoff to allow for recovery. Defaults to 5.

People

The author is Chris Kinsman from PushSpring

License

MIT