Resuming a download

Rails
1

Is there a document somewhere that describers how I would implement, in
Rails, a “resume download”?

I have a large video I want people to download (if they want to).

My partner has a bad Internet connection and it crashed several times
and he wanted to resume but the download wouldn’t.

How do I set things up so that a download is restartable?

Is this a Rails issue or am I way OT?

2

On Mar 11, 12:27am, Ralph S. [email protected] wrote:

Is there a document somewhere that describers how I would implement, in
Rails, a “resume download”?

I have a large video I want people to download (if they want to).

My partner has a bad Internet connection and it crashed several times
and he wanted to resume but the download wouldn’t.

How do I set things up so that a download is restartable?

You need to support partial gets: if the get request contains (for
example) Range: 500000- then you only send bytes from that offset.
If this is just a static asset then it’s nothing to do with rails: you
need to make sure that your web server’s configuration allow this. If
it’s something being sent via send_file etc. then i’d hope that rails
would handle this for you

Fred

3

FC> On Mar 11, 12:27 am, Ralph S. [email protected] wrote:

Is there a document somewhere that describers how I would implement, in
Rails, a “resume download”?

I have a large video I want people to download (if they want to).

My partner has a bad Internet connection and it crashed several times
and he wanted to resume but the download wouldn’t.

How do I set things up so that a download is restartable?

FC> You need to support partial gets: if the get request contains (for
FC> example) Range: 500000- then you only send bytes from that offset.
FC> If this is just a static asset then it’s nothing to do with rails:
you
FC> need to make sure that your web server’s configuration allow this.
If
FC> it’s something being sent via send_file etc. then i’d hope that
rails
FC> would handle this for you

Frederick,

Thank you. Again, this is way over my head.

The line of HAML I have is:
= link_to ‘(MP4)’, ‘/videolib/Workstation-Suspend-Put-001.mp4’,
‘class’ => video_type_link_to

The user clicks on “(MP4)” and the download automagically begins.

Does the link_to initiate a send_file? Should I be doing a send_file
explicitly? How?

These large-ish (100MB each) videos are fairly static … maybe being
updated once a week or less.

Ralph

4

On Mar 11, 10:13am, Ralph S. [email protected] wrote:

Thank you. Again, this is way over my head.

The line of HAML I have is:
= link_to ‘(MP4)’, ‘/videolib/Workstation-Suspend-Put-001.mp4’, ‘class’ =>
video_type_link_to

The user clicks on “(MP4)” and the download automagically begins.

Does the link_to initiate a send_file? Should I be doing a send_file explicitly?
How?

These large-ish (100MB each) videos are fairly static … maybe being updated
once a week or less.

Ok, this is just a file in your app’s public folder, right? If so,
then it shouldn’t be being served by rails (whatever handles your
static assets (apache, nginx etc.) should be handling them. You should
probably delve into your web server configuration to find out how to
get it to do partial gets.

Fred