How to serve S3 files from a Rails app?

Question

I am trying to allow users to download a S3 file by left clicking a link. Normally, they would have to do it by right-clicking and save-as.

I looked into http://apidock.com/rails/ActionController/DataStreaming/send_file but not sure if this is what I want.

This article http://www.jtricks.com/bits/content_disposition.html basically shows how it can be done by configuring Apache. However, we are using Heroku.

Anyone used Content-Disposition before to serve files from S3? Also wondering if this takes up a whole web process (Dyno)? Or if the whole process happens on the S3 server instead?

I tried:

send_file 'http://some_bucket_name.s3.amazonaws.com/uploads/users/28/songs/88/test.mp3', :type => 'audio/mp3', :disposition => 'attachment'

And I get:

Cannot read file http://some_bucket_name.s3.amazonaws.com/uploads/users/28/songs/88/test.mp3

The file does exist. If I manually navigate to the url. The file plays fine.

score 3 · Answer 1 · answered Nov 28 '11 at 20:23

3

This works for Rails 3. In your controller do:

response.headers['Content-Disposition'] = "attachment; filename=#{original_filename}"
self.response_body = proc { |response, output|
  AWS::S3::S3Object.stream(path, 'some_bucket_name') { |segment|
    output.write segment
  }
}

In your case:

original_filename = 'test.mp3'
path = '/uploads/users/28/songs/88/test.mp3'

answered Nov 28 '11 at 20:23

Yoni Baciu

2,667
1
22
28

It returns: `uninitialized constant PagesController::AWS`. I have the AWS gem installed and in my gemfile – Christian Fazzini Jan 02 '12 at 17:10
Btw, I'm doing this in the PagesController. Any idea why this error is coming up? – Christian Fazzini Jan 03 '12 at 04:47
1

Mmm... try ::AWS::S3::S3Object etc (notice the AWS is prefixed with ::) – Yoni Baciu Jan 06 '12 at 18:06

score 0 · Answer 2 · answered Jul 28 '14 at 19:27

0

try send_data AWS::S3.new.buckets['music'].objects["path/to/your/file.mp3"].read, filename: "some_file_name.mp3"

answered Jul 28 '14 at 19:27

Colin MacKenzie - III

1,373
12
13

How to serve S3 files from a Rails app?

2 Answers2