From: Nicholas Van Weerdenburg <vanweerd@...>
Date: 2013-06-14T12:55:05+09:00
Subject: Re: Can I use Sinatra to render dynamic pages?

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You should be able to do this without JavaScript by using streaming.

Sinatra has a streaming API as of 1.3. Rails 4.0 is adding a "live" mode
for similar.

However you need to use a supporting web server and hook into the event
loop (which Rack exposes).

https://gist.github.com/rkh/1476463 offers an example, but note that the
heroku app is broken (look at the comments for a link to a patched version).

Nick


On Thu, Jun 13, 2013 at 5:41 PM, Ruby Student <ruby.student@gmail.com>wrote:

> Hell Team,
>
> I wrote a very simple dashboard using *shoes* which basically displays
> statistics, every second, of certain type of messages arriving at a queue
> under *MQ*. But in order for anyone to use it they have to install *Ruby*,
> *shoes *and its requirements. So I started experimenting with *Sinatra *to
> re-write my simple application so anyone could point their *browser* and
> get the dashboard displayed. I went over the first *basic Sinatra*tutorial but everything appears to be static. Is there any example out
> there that shows *Sinatra* dynamically refreshing the page continuously
> with new information, in my case message queues information?
>
> In other words, once the user successfully get the page displayed, from
> that point on I want the content to be refreshed dynamically with the new
> information without user intervention.
>
> Thank you
>
> --
> Ruby Student
>

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<div dir=3D"ltr"><div>You should be able to do this without JavaScript by u=
sing streaming.</div><div><br></div><div>Sinatra has a streaming API as of =
1.3. Rails 4.0 is adding a &quot;live&quot; mode for similar.</div><div><br=
>

</div><div>However you need to use a supporting web server and hook into th=
e event loop (which Rack exposes).</div><div><br></div><div><a href=3D"http=
s://gist.github.com/rkh/1476463">https://gist.github.com/rkh/1476463</a> of=
fers an example, but note that the heroku app is broken (look at the commen=
ts for a link to a patched version).<br>

</div><div><br></div><div>Nick</div></div><div class=3D"gmail_extra"><br><b=
r><div class=3D"gmail_quote">On Thu, Jun 13, 2013 at 5:41 PM, Ruby Student =
<span dir=3D"ltr">&lt;<a href=3D"mailto:ruby.student@gmail.com" target=3D"_=
blank">ruby.student@gmail.com</a>&gt;</span> wrote:<br>

<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><div dir=3D"ltr"><div><div>Hell Team,<br><br=
></div>I wrote a very simple dashboard using <b>shoes</b> which basically d=
isplays statistics, every second, of certain type of messages arriving at a=
 queue under <b><span>MQ</span></b>. But in order for anyone to use it they=
 have to install <b>R<span>uby</span></b>, <b>shoes </b>and its requirement=
s. So I started experimenting with <b>Sinatra </b>to re-write my simple app=
lication so anyone could point their <b>browser</b> and get the dashboard d=
isplayed. I went over the first <b>basic Sinatra</b> tutorial but everythin=
g appears to be static. Is there any example out there that shows <b>Sinatr=
a</b> dynamically refreshing the page continuously with new information, in=
 my case message queues information?<br>


<br></div><div>In other words, once the user successfully get the page disp=
layed, from that point on I want the content to be refreshed dynamically wi=
th the new information without user intervention.<br><br></div><div>Thank y=
ou<span class=3D"HOEnZb"><font color=3D"#888888"><br>


</font></span></div><span class=3D"HOEnZb"><font color=3D"#888888"><div><di=
v><div><br>-- <br>Ruby Student
</div></div></div></font></span></div>
</blockquote></div><br></div>

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