[BETA] MTGox websocket API, testers wanted

[kseistrup]

today I saw MtGox Live for Android

I have a feeling that the app is polling Mt. Gox every 5 seconds, rather than using the websocket API.

Something that would be immensly cool is an android app with the same graphs as on MtGoxLive, using websockets.  AFAIK there are no browsers for android that supports websokcets, so I can't just load the web page.

Cheers,

[ezl]

recommendation regarding the depth feed -- , send updates instead of diffs.

 the bandwidth is ~same, but by broadcasting updates, the penalty for missing a message only lasts as long as the interval until the next update for that price level. clients can compute diffs if they want.

it also makes it so that the listener can theoretically construct the full book just by listening to the updates instead of repolling the old api and hoping the messages are in sync

[dev^]

Hi,

is it possible for upcoming version to rename the field "private" in anything other, which isn't a protected keyword in Java?  

Currently it isn't possible (at least for me) to read this field with any common JSON parser library, e.g. Google's Gson.
(of course, it would be possible to set this field's content via text parsing, but this isn't the right way to do so...)

> Something that would be immensly cool is an android app with the same graphs as on MtGoxLive, using websockets.

If someone can develop any nice looking GUI for Android devices, I could provide the complete Java part regarding the WebSockets - it seems to work quite fine.  

Best regards
dev^

[zelyony]

at now
for determine connection lost (iPhone hasn't keepalive ops for socket) I do next:
if App dont recv any datas on channels over 6seconds it send:

"{"op":"ping"}"

if connection is ok than server responds to App:

{"message":"Unknown command","op":"remark","success":false}

if no any responds in next 6seconds (include other datas on channels) App decides that current connection lost and try to create new connection (with close old)

NB: "ping" dont send every 6seconds! only if at last 6seconds no datas (including "Unknown command")
otherwise App works but nothing shows over hour on broken connection (turnoff WAN at router). I dont known default values in iPhone keep-alive logic.

and my suggestion:
maybe add "good" response:

{"op":"pong"}

it dont requires any logic or DB-access. simple response for current connection
although its works well now

[dds]

Looks like MtGox WebSockets broken after reopening - connection can be established but no data received.
Mark, are you going to fix it?

[molecular]

Looks like MtGox WebSockets broken after reopening - connection can be established but no data received.
Mark, are you going to fix it?

+1

also: I can't seem to be able to use the classic Trade API, either. Says something about a "bad token". Anyone know about that?

[kseistrup]

I can't seem to be able to use the classic Trade API, either. Says something about a "bad token". Anyone know about that?

Look at the Trade API page on your account — it says that it will be enabled soonish.

Cheers,

[zelyony]

good! websocket works for now!

some questions:

{"channel":"d5f06780-30a8-4a48-a2f8-7ed181b4a13f","op":"private", "origin":"broadcast","private":"ticker", "ticker":{"avg":15.469053268,"buy":15.63,"high":15.689,"last":15.63001,"low":15.311,"sell":15.63001,"vol":15679}}

"avg" is average volume by trade?

{"channel":"dbf1dee9-4f2e-4a08-8cb7-748919a71b21","op":"private","origin":"broadcast","private":"trade", "trade":{"amount":2,"amount_int":"200000000","date":1309710218,"item":"BTC","price":15.632,"price_currency":"USD","price_int":"1563200","tid":"1309710218345711","trade_type":"ask","type":"trade"}}

what mean "trade_type":"ask"? trade raised by ask order?

and where is depth channel? no datas for it. will it appear in the future?

[dev^]

good! websocket works for now!

Yay! :-)

"avg" is average volume by trade?

I think it's the average price. (As I guess by it's value...)

what mean "trade_type":"ask"? trade raised by ask order?

and where is depth channel? no datas for it. will it appear in the future?

Looks like this is "the new" depth-channel...

Best regards,
dev^

[zelyony]

and where is depth channel? no datas for it. will it appear in the future?

Looks like this is "the new" depth-channel...

my English is not so good. where is "this "the new" depth-channel" ?
EDIT: on #mtgox they say me that "should come soon"


and I try to get key for personal channel via https://mtgox.com/code/getKey.php (as say in post 0). it returns

{"error":"Bad token"}

EDIT: maybe same (come soon)

[kseistrup]

My ws client has been trying to connect for an hour now, is the websocket down for me only?

[dev^]

My ws client has been trying to connect for an hour now, is the websocket down for me only?

It's down for everyone.

Code:

java.net.ConnectException: Connection refused: connect
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.PlainSocketImpl.doConnect(Unknown Source)
	at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
(...)

MtGox should really think about some QA or at least a 2nd developer in it's team...

[molecular]

there's a wiki now: https://en.bitcoin.it/wiki/MtGox/API#Websocket_API

[vector76]

I guess since there is not a good way to synchronize the market depth websocket with the getDepth.php, I could fetch getDepth multiple times and watch the websocket for deltas and try to correlate them.

I'd have to agree with ezl's suggestion of sending the total volume instead of the deltas.  Then there would be no synchronization problem.

Are people still seeing problems with the depth websocket or have those issues been fixed?  I guess I'll fetch getDepth every 5 or ten minutes just in case..

[divebubble]

Reading the different channels, updating data all works perfect... but -

how can i connect my account to get my trading information?

sending
{"op":"mtgox.subscribe","key":"XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX"}

will always result in

{"message":"Invalid MTGOX key","op":"remark","success":false}


XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX is the API Key from the https://mtgox.com/users/settings page.
Or are i'm compleatly wrong?


Thanks.

[throughput]

Websocket API is cool for receiving trade updates! Thanks!

But is it possible to receive updates on my orders anyhow?
If that is implemented, then I don't get the meaning of the "(partial key)" in

Code:

{
  "channel":"(partial key)",
  "op":"private",
  "order_upd":{
    "amount":1000,
    "darkStatus":0,
    "date":1302836027,
    "oid":"(oid)",
    "price":0.9899,"status":1
  },
  "origin":"broadcast",
  "private":"order_upd"
}

(example from https://en.bitcoin.it/wiki/MtGox/API#Websocket_API )

I don't understand how should I implement the authentication to subscribe to my private channel.

Please, can anybody provide more details on:

 1. Does it work at the moment?
 2. How the authentication is implemented?

Also, it would be nice to be able to request the full depth to receive them as depth messages.

[Fireball]

You have a small bug in the reply header:

Code:

HTTP/1.1 101 WebSocket Protocol Handshake

should be the first line, and in your case it's

Code:

HTTP/1.1 101 Web Socket Protocol Handshake

(yes, the additional space between Web and Socket). Nothing major, however if some software validates the header, it won't be recognized as a valid one. Example of such real-world failing app: websocket-sharp. Other are probably just failing silently too.

[piotr_n]

It happens very often that there are consecutive "depth" messages, where one comes immediately after another and they both have the same amount/price and the opposite sign. So effectively they do nothing, except causing confusion and an unnecessary traffic.

For instance:

{"channel":"24e67e0d-1cad-4cc0-9e7a-f8523ef460fe","depth":{"currency":"USD","item":"BTC","price":"9.15417","price_int":"915417","type":1,"type_str":"ask","volume":"-0.09283","volume_int":"-9283000"},"op":"private","origin":"broadcast","private":"depth"}
{"channel":"24e67e0d-1cad-4cc0-9e7a-f8523ef460fe","depth":{"currency":"USD","item":"BTC","price":"9.15417","price_int":"915417","type":1,"type_str":"ask","volume":"0.09283","volume_int":"9283000"},"op":"private","origin":"broadcast","private":"depth"}
...
{"channel":"24e67e0d-1cad-4cc0-9e7a-f8523ef460fe","depth":{"currency":"USD","item":"BTC","price":"8.86","price_int":"886000","type":2,"type_str":"bid","volume":"-0.2","volume_int":"-20000000"},"op":"private","origin":"broadcast","private":"depth"}
{"channel":"24e67e0d-1cad-4cc0-9e7a-f8523ef460fe","depth":{"currency":"USD","item":"BTC","price":"8.86","price_int":"886000","type":2,"type_str":"bid","volume":"0.2","volume_int":"20000000"},"op":"private","origin":"broadcast","private":"depth"}
{"channel":"24e67e0d-1cad-4cc0-9e7a-f8523ef460fe","depth":{"currency":"USD","item":"BTC","price":"8.86","price_int":"886000","type":2,"type_str":"bid","volume":"-0.2","volume_int":"-20000000"},"op":"private","origin":"broadcast","private":"depth"}
...
{"channel":"24e67e0d-1cad-4cc0-9e7a-f8523ef460fe","depth":{"currency":"USD","item":"BTC","price":"8.86852","price_int":"886852","type":2,"type_str":"bid","volume":"-0.79287883","volume_int":"-79287883"},"op":"private","origin":"broadcast","private":"depth"}
{"channel":"24e67e0d-1cad-4cc0-9e7a-f8523ef460fe","depth":{"currency":"USD","item":"BTC","price":"8.86852","price_int":"886852","type":2,"type_str":"bid","volume":"0.79287883","volume_int":"79287883"},"op":"private","origin":"broadcast","private":"depth"}

It seems like some glitch and it would be nice if could be fixed one day.

[zelyony]

It happens very often that there are consecutive "depth" messages, where one comes immediately after another and they both have the same amount/price and the opposite sign. So effectively they do nothing, except causing confusion and an unnecessary traffic.

For instance:

{"channel":"24e67e0d-1cad-4cc0-9e7a-f8523ef460fe","depth":{"currency":"USD","item":"BTC","price":"8.86852","price_int":"886852","type":2,"type_str":"bid","volume":"-0.79287883","volume_int":"-79287883"},"op":"private","origin":"broadcast","private":"depth"}
{"channel":"24e67e0d-1cad-4cc0-9e7a-f8523ef460fe","depth":{"currency":"USD","item":"BTC","price":"8.86852","price_int":"886852","type":2,"type_str":"bid","volume":"0.79287883","volume_int":"79287883"},"op":"private","origin":"broadcast","private":"depth"}

It seems like some glitch and it would be nice if could be fixed one day.

imho, all changes must be. human's or robot's..

[piotr_n]

imho, all changes must be. human's or robot's..

agree. but these dont look like robot changes, do they? why would a robot do something like that? the only thing i can think of: to DoS the server