s3-stream-upload

A writable stream which uploads to Amazon S3 using the multipart file upload API.

Inspired by s3-upload-stream.

Install

npm install s3-stream-upload

Usage

1// index.js
2var UploadStream = require("s3-stream-upload");
3var S3 = require("aws-sdk").S3;
4var fs = require("fs");
5
6var key = "file.mp3";
7var s3 = new S3();
8
9fs.createReadStream(__dirname + "/file.mp3")
10  .pipe(UploadStream(s3, { Bucket: "my-bucket", Key: key }))
11  .on("error", function (err) {
12    console.error(err);
13  })
14  .on("finish", function () {
15    console.log("File uploaded!");
16  });

1$ AWS_ACCESS_KEY_ID=foo AWS_SECRET_ACCESS_KEY=bar node index.js

See aws-sdk-js for other ways to configure you environment variables.

API

UploadStream(s3, s3Config, config)

Creates and returns a WritableStream for uploading to S3. Takes an S3 instance, and a s3Config object, which takes the same options as S3.createMultipartUpload. Additional, non-S3 config options may be set on config, listed below:

• concurrent How many chunks can be sent to S3 concurrently. 1 by default.

Events

• chunk-uploaded - Emitted when a MPU chunk has been uploaded to S3, with the number of chunks uploaded at this point.
• All WritableStream events.

Properties

• bytesWritten - Like fs.WriteStream, bytes uploaded to S3 currently.

Testing

To run unit tests, run:

npm test

License

MIT License, Copyright (c) 2014 Jordan Santell