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Hacker News Almost Real Time.(Automatic loading of updates/every 5 minutes)

toseeitlive.com

29 pointsdanfitch17 comments

This is my experiment using Comet, Faye, Sinatra, and Redis. Let me know what you think. I keep it open all day and watch stories move up and down without missing the ones that fall off the front page.

If you mouse over the items they will highlight, other users can see the mouse over as well. More Info is on the About page http://toseeitlive.com/about

Seeing mouse overs of other users seems pointless and the faint change from black to gray made me a little dizzy. Also the "Users Online" doesn't seem to load, but it sounds interesting. I like the idea though, just seems like it could be presented better (I almost missed the green arrows).

Yeah The Users Online will update every 5 minutes, and I will improve the presentation, just kinda doing it for myself and wrote it in a few hours so haven't put much style into it. Thanks for checking it out! I could have it update every minute and the arrows would be noticed earlier and maybe I should move it closer to the number of the article.

Yeah this is not a fully bullet proof system, it is just an experiment, something that I use and thought I would share, if you want to play around with the technology check out the urls on the about page.

It will be an interesting post to talk about how you get all these working with Faye, Sinatra and Redis.

Sorry to ruin it for anyone, but this is a hilarious April Fools prank.

Edit: Apparently that wasn't the author's intention. It's just that the application has funny injection vulnerabilities.

Sorry guys :( I'll stop now.

Note to author: Give an idiot (me) a toy, and he'll play...

They were pretty good headlines though. :P

"37Signals bought by Twitter"

Eh... Go play, I built the site to learn how these technologies would work together. I learned that its cool and very simple to hookup but that means with simplicity comes some extra work to secure it. I'll work out the kinks later and do a writeup but what I learned and post the source.

Is it hard to validate things server side? From the little I know about the setup it seems like you publish from a client, and it gets pushed out to all clients automatically.

Hopefully there's a way to deny certain publishes from clients, cleanse input, validate etc etc on the server, before it gets relayed to the other clients.

For example the channel '/client_count' should never accept any publishes from outside the server. Wonder how easy that is to adjust.

It does seem pretty nice and responsive though :) Nice job.

Yeah Faye makes it dead simple to set up the channels to communicate on but there doesn't seem to be much in the way of filtering for the channels. I am sure it is something that could be added, but I didn't take the time yet.

Thanks!

Web frameworks/libraries/apps that make correct HTML encoding possible without much fuss are a pleasant surprise on those rare occasions when I encounter them. Web frameworks/libraries/apps that actually do it right knock me over. I don't know of very many examples that even come close.

(This isn't my only metric, but it's a good start: Set a variable to ampersand, then do the basic string output that your template library or whatever has, feeding it that variable. If you get & automatically and have to ask extra hard for a bare ampersand, you've officially gotten me up to "Hey, wow!" That's just one metric I use of many, but making the safe thing easy and the dangerous thing harder is a good start! This knocks out almost every web framework/library/web templating system I've tried.)

Down arrows in red would be good.

Yeah I will make that change good point. Done

Is this why HN has been sluggish the past week or so?

I only poll it every 5 minutes. I didn't want to over do it, and the frequency didn't matter that much to me. I just like to see the change over time.

this domain remind me of the bill o riley outrage

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