Bitcoin Forum

I have created a web page to view the real time MtGox time & sales data as it comes across the pipe.

http://bitcoin.clarkmoody.com/ (http://bitcoin.clarkmoody.com/)

Please note that this service requires WebSockets, and Google Chrome seems to be the only browser that supports the technology at the moment.

The MtGox data now comes down the pipes on socket.io, so browser compatibility should be much broader than before.

Browser Support:

• Google Chrome & Safari support WebSockets out of the box
• Firefox 4: Set network.websocket.override-security-block to true in about:config
• Opera: enable WebScokets in opera:config

If you want to see just a ticker updating in real time, I have created another page that uses polling as a fallback when WebSockets don't work:

http://bitcoin.clarkmoody.com/ticker/ (http://bitcoin.clarkmoody.com/ticker/)

There is also the issue of proxy servers getting confused by the unsecured WebSockets protocol. There is solid evidence that secure WebSockets (wss://) are routed properly by transparent proxy servers (maybe this is on MagicalTux's todo list already).

Whatever the case, if the site works for you, please enjoy and send a donation my way. I am in the process of developing depth of market tables for displaying the order book in real time. You can find the Order Book here: http://forum.bitcoin.org/index.php?topic=14412 (http://forum.bitcoin.org/index.php?topic=14412)

n/a

Works great! :D

There's however a small visual glitch that is quite annoying; whenever you have the site open long enough the list of "Time&Sales" goes over the credits and behind the console and then on down even more. Could you put this is in an overflow box or something, with a scrollbar probably?

Cheers!

nice work but if u use it for a longer time the trading data is running over the credts.

That looks fucking killer! Well done! I can see all my sales going through, never realised i was selling to so many people absolutely tiny amounts.

It seems to me that it doesn't work.

What browser are you using?  Do you have websockets enabled?  It works fine for me in Chromium.  It would be nice if the prices were put in a div with overflow:hidden, but it's fully functional.

Thanks for the quick feedback and the donation! I had to sleep between launching and reading the replies, but I've made some style changes.

Now (for me at least) the trades go behind the credits and console, and the console doesn't scroll up the page when the trades extend beyond the window.

http://ubitious.s3.amazonaws.com/cde314cfc38a734fd4460e99a88c2bc757d7ad91/brilliant-brilliant-thumbnail.jpg (http://ubitio.us/file/download/393)
Click for larger image

Works in Chrome but FF 4.0.1 is too old for it...

Someone donate to this guy!

As I've said to these sites before, they work in Firefox if you override the security block.
Set network.websocket.override-security-block to true in about:config
DO NOT ENABLE THIS IF YOU ARE BEHIND A PROXY

You should try using pusher.com technology, its universal

The compatibility issues are not on my end: MtGox does not provide a meaningful fallback to the WebSocket data feed. I know that you can poll the Trade API http addresses, but there are other issues with that. For instance, the getTrades link provides WAY too much data (a couple megabytes) each time you call it. There are thousands of trades on there now.

Ideally, MtGox could add a few api parameters so you could ask for trades from a certain trade number or date instead of getting all trades from the past 48 hrs.

I have been checking out http://socket.io/ as an alternative as well.

Had this open for hours, more fun to watch than the pretty color charts :)

Glad you liked it. Out of curiosity, did you update the number of output lines for the console? And what did you settle on?

30

works in firefox 4, just set network.websocket.override-security-block to true

Very nice. I like it!  :)

has something changed with the Ticker? Im not getting the list of trades scrolling down the screen anymore?

Not enough donations  ;)


It still works for me, on multiple computers it various locations. Did you get a 'WebSocket closed' message? How long was it running before it stopped?

It worked fine for me about 22 hours ago, last time i was online, im still getting the console lines at the bottom and the trades are comming up in there like normal, its just not generating a list of the trades in the main part of the page.

PS. I sent a donation before, because this is awesome.

Weird. I guess you should just try refreshing a couple times. Maybe it's an old version of the source.

Thanks for the donation, by the way!

I'm still new to this stock ticker idea so I don't know how this may sound, but why not have an option to have two seperate columns, one for the "Time & Sales", and one for the console lines?  (This would of course be for people who don't reduce the width of your page and stick it on the right hand side of their monitor)

It's a good idea that I might look into. Right now I'm working on a live updating order book, so the console will really be just for debug stuff (and to know that you're getting data). There will probably be an integrated application that has both visible at once, or the ability to enable and disable an individual item.

awesome!

i actually replaced my tv with it :) sitting in front of it with a glass of fine scotch...

i would like to see the amount of the bid and ask in addition to the price, maybe in a second row. this would boost the tv-like experience to see how the bids and asks are eaten up :)

if i try to reach it it tells me that your acc is suspended?

did you move it?

Yea it looks like its suspended.

If its a bandwith issue, drop me a PM, i have a dedicated server i could probably host this on.

yeah, ive got unlimited webspace and unlimited bandwith too. pm me if u need any!

Yeah, sorry guys. I'm attempting to resolve the issue now.

its up again

For those interested, here's the live order book:

http://bitcoin.clarkmoody.com/order-book/


Discussion thread:

http://forum.bitcoin.org/index.php?topic=14412.0

nice work!

Why am I getting a "WebSocket Closed" error?

MtGox's Websocket API is down.

Great job! :)

would be great to email or sms upon a certain price being reached: good way to learn about users - and could ask for a fee

Very nice tool. Good job!

I find the red to be somewhat darkish. I tried some things to improve it:

• "color: #F00017" (from #B00017): still dark.
• "font-size: 16px" (from 12): still dark.
• increasing overall font size with the browser's key combo: still dark, as expected.
• "font-weight: bold": better, but that's not a solution. Too bad "font-weight: 500" or "600" don't do anything here.
• "font-family: monospace" (removing other fonts): better, but titles and headers lose protagonism (though I consider this a lesser evil).
• increasing screen brightness: good, now any web page with white background could be used to light a football stadium :).

Any idea on when it will be back up and running?

Edit: Sorry, just found the other thread.  You're still waiting on the websockets to start sending data.

Idea: make the background color/brightness of each line depend on the time from the last trade. This way, we'll be able to see big trades at a glance, instead of paying attention to the timestamps.

Implemented.

I have also added a title attribute on the trade table that shows the total trade amount in the exchanged currency (price * amount); just hover over the particular trade to see it.

Hey, that was fast!

http://img32.imageshack.us/img32/3050/xwd20110716022304.png (http://img32.imageshack.us/i/xwd20110716022304.png/)

This trade grabbed my attention: it hasn't the same color as the one above it (despite having the same timestamp), but most notably it has zero volume.

Trades that change direction from downward to upward are not considered part of the same order, so they colored differently.

That is a peculiar trade though.

the T&S and the order book dont work for me today, while it was working perfectly before on chrome.

Anyone observing the same?

No, they're both working here, chrome 13.

thanks. now its working

Added feature:

The current 'trend' is output in the console and in the header. The trend is defined as a series of trades in the same direction, and the output is the total price change from the end of the last trend  (in USD) along with the total number of BTC traded during the current run.

You should try http://socket.io technology - it's both universal and free

I have launched the Time & Sales and Order Book in a combined product. Read about it here (https://bitcointalk.org/index.php?topic=43514.0).

Or visit http://bitcoin.clarkmoody.com/

Enjoy!

websocket closed erorr every time

Are you using Chrome 14? You can read a little bit more about the problem on this post: https://bitcointalk.org/index.php?topic=43514.msg540281#msg540281

Short answer: MtGox controls the WebSocket, and they are using an incorrect packet framing protocol that Chrome 14 does not support.

Dont find it in firefox 7  ??? There are 9 "network.websocket. ..." but no with "override-security-block"

Opera works, looks very nice!

Will you build the order book for trading?

MtGox is really dragging its feet on this WebSocket compatibility thing.

What do you mean by 'order book for trading'? I have already created the order book, combined with the other services at http://bitcoin.clarkmoody.com/ (http://bitcoin.clarkmoody.com/)

I love your page, but MtGox is lagging with websocket update...  :-\

Is it possible to trade from your order book, by clicking on bid or ask (row)?

I ask this accidentally in other thread:
Is it possible to export the Time & Sales as CSV (txt) file?

I am working on a web-based trading platform at this very moment.

Do you think order book sweeps (the thing you describe) would be a good function to implement?

I am not native english speaker. What do you mean order book "sweeps"?

A sweep is where you can click a point on the order book and fill all the orders up to that point, either buying from the Asks or selling to the Bids.

It sounds like a Limit Order?
If you do a limit order  e.g. @4.231, to buy 100 BTC, you would get all BTC below. Right?

Also, if you use Freenode IRC network, you can see real-time trade data for all bitcoin markets (http://bitcoinmarkets.com/markets.php) in #bitcoin-markets (http://webchat.freenode.net/?channels=bitcoin-markets) - Do NOT join these channels.  If you do, you will be an 'annoying asshole' just liek me (see reply below)   - boo drama-induced style of discussions


I appended to this reply instead of creating a new reply so as to be less 'annoying asshole.'

huh?  o_X   competing channels?  (maybe this forum thread is a competing channel?)  x_O   product?  maybe service?


For the sake of full disclosure, I grepped all of my IRC logs (even across dozens of IRC networks other than freenode) for all instances of "bitcoin-markets" to see where I (or anyone else) has 'advertised' them.

The channels that I mentioned the channel on are (all freenode): #bitcoin, #bitcoin-anarchy, #bitcoin-ar, #bitcoin-aus, #bitcoin-br, #bitcoin-cake, #bitcoin-economics, #bitcoin-otc, #bitcoin-otc-foyer, #bitcoinica, #freenode, #mtgox, #solidcoin, #witcoin
The channels that sYN4P515 mentioned the channel on are (all freenode): #bitcoin-otc-ru, #mtgoxlive

Other than #mtgoxlive (which I am not responsible for posting in), I do not see any 'competing channels.'

Therefore I presume it is safe to indicate that speeder's claim of "including competing channels" is biased/misleading/misinformation.

Also, I have received a bit more concern over https://bitcointalk.org/index.php?topic=47057 as being annoying in which ~10% of the people I have helped spread awareness to were retaliatory/annoyed whilst the remaining ~90% were appreciative/thankful due to not realizing there was bitcoin community for their country.

Ok dude, now you are being a annoying asshole.

Advertising is fine.

Advertising all the time, in several places that do not belong to you, including competing channels, and topics opened by competitors of your product, is not fine.

I think the point of the sweep is that is computes the right amount to purchase / sell to take the book to that point.

I think now I got the idea! ;)  But this could be "dangerous", because, if a big order will come to the book, you didnt expect (while clicking the mouse button), it could "sweep " your account...  :o

PS: If other user disturbing this thread with advertisement end senseless off topic discussion, I will  "Report to moderator" your postings next time!

Yeah, order book sweeps could be dangerous, but you can't buy more than you can afford with your account balance.

Edit: Wrong topic, sorry.

I see you fixed the issue with "erratic" order book entries when grouping by price. Thanks. Was guessing these where "other currencies"?

Not other currencies (their depth messages are not broadcast over websocket yet). The bug came from sorting an array of strings instead of numbers. With strings, "1000" comes before "999" because the comparison is made on the first character.

what does it mean: Your account is suspended?
I can't use clarkmoody since today.

I am in the process of switching servers.

Nice job Clark, I found your tool extremely useful! Now I miss it :) When will it be back online?

I never realize exactly how horrible mtgoxlive is until I have to use it and then it is like ... damn ...

OP nice one! thank you!