X-Git-Url: http://pere.pagekite.me/gitweb/homepage.git/blobdiff_plain/2b847b8da3b3a139137c6b08e3f0f6daeb43adab..8614df3b497e378ba191d452b8ca936845486537:/blog/index.html diff --git a/blog/index.html b/blog/index.html index 34e0710d61..91c4c3a679 100644 --- a/blog/index.html +++ b/blog/index.html @@ -19,6 +19,78 @@ +
+
Websocket from Kraken in Valutakrambod
+
1st February 2019
+

Yesterday, the Kraken virtual currency exchange announced +their +Websocket service, providing a stream of exchange updates to its +clients. Getting updated rates quickly is a good idea, so I used +their API +documentation and added Websocket support to the Kraken service in +Valutakrambod today. The python library can now get updates +from Kraken several times per second, instead of every time the +information is polled from the REST API.

+ +

If this sound interesting to you, the code for valutakrambod is +available from +github. +Here is example output from the example client displaying rates in a +curses view:

+ +

+           Name Pair   Bid         Ask         Spr    Ftcd    Age
+ BitcoinsNorway BTCEUR   2959.2800   3021.0500   2.0%   36    nan    nan
+       Bitfinex BTCEUR   3087.9000   3088.0000   0.0%   36     37    nan
+        Bitmynt BTCEUR   3001.8700   3135.4600   4.3%   36     52    nan
+         Bitpay BTCEUR   3003.8659         nan   nan%   35    nan    nan
+       Bitstamp BTCEUR   3008.0000   3010.2300   0.1%    0      1      1
+           Bl3p BTCEUR   3000.6700   3010.9300   0.3%    1    nan    nan
+       Coinbase BTCEUR   2992.1800   3023.2500   1.0%   34    nan    nan
+         Kraken+BTCEUR   3005.7000   3006.6000   0.0%    0      1      0
+        Paymium BTCEUR   2940.0100   2993.4400   1.8%    0   2688    nan
+ BitcoinsNorway BTCNOK  29000.0000  29360.7400   1.2%   36    nan    nan
+        Bitmynt BTCNOK  29115.6400  29720.7500   2.0%   36     52    nan
+         Bitpay BTCNOK  29029.2512         nan   nan%   36    nan    nan
+       Coinbase BTCNOK  28927.6000  29218.5900   1.0%   35    nan    nan
+        MiraiEx BTCNOK  29097.7000  29741.4200   2.2%   36    nan    nan
+ BitcoinsNorway BTCUSD   3385.4200   3456.0900   2.0%   36    nan    nan
+       Bitfinex BTCUSD   3538.5000   3538.6000   0.0%   36     45    nan
+         Bitpay BTCUSD   3443.4600         nan   nan%   34    nan    nan
+       Bitstamp BTCUSD   3443.0100   3445.0500   0.1%    0      2      1
+       Coinbase BTCUSD   3428.1600   3462.6300   1.0%   33    nan    nan
+         Gemini BTCUSD   3445.8800   3445.8900   0.0%   36    326    nan
+         Hitbtc BTCUSD   3473.4700   3473.0700  -0.0%    0      0      0
+         Kraken+BTCUSD   3444.4000   3445.6000   0.0%    0      1      0
+  Exchangerates EURNOK      9.6685      9.6685   0.0%   36  22226    nan
+     Norgesbank EURNOK      9.6685      9.6685   0.0%   36  22226    nan
+       Bitstamp EURUSD      1.1440      1.1462   0.2%    0      1      2
+  Exchangerates EURUSD      1.1471      1.1471   0.0%   36  22226    nan
+ BitcoinsNorway LTCEUR      1.0009     22.6538  95.6%   35    nan    nan
+ BitcoinsNorway LTCNOK    259.0900    264.9300   2.2%   35    nan    nan
+ BitcoinsNorway LTCUSD      0.0000     29.0000 100.0%   35    nan    nan
+     Norgesbank USDNOK      8.4286      8.4286   0.0%   36  22226    nan
+

+ +

Yes, I notice the strange negative spread on Hitbtc. I've seen the +same on Kraken. Another strange observation is that Kraken some times +announce trade orders a fraction of a second in the future. I really +wonder what is going on there.

+ +

As usual, if you use Bitcoin and want to show your support of my +activities, please send Bitcoin donations to my address +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.

+
+
+ + + Tags: bitcoin, english. + + +
+
+
+
Strategispillet Unknown Horizons nå tilgjengelig på bokmål
23rd January 2019
@@ -836,49 +908,6 @@ activities, please send Bitcoin donations to my address
-
-
Time for an official MIME type for patches?
-
1st November 2018
-

As part of my involvement in -the Nikita -archive API project, I've been importing a fairly large lump of -emails into a test instance of the archive to see how well this would -go. I picked a subset of my -notmuch email database, all public emails sent to me via -@lists.debian.org, giving me a set of around 216 000 emails to import. -In the process, I had a look at the various attachments included in -these emails, to figure out what to do with attachments, and noticed -that one of the most common attachment formats do not have -an -official MIME type registered with IANA/IETF. The output from -diff, ie the input for patch, is on the top 10 list of formats -included in these emails. At the moment people seem to use either -text/x-patch or text/x-diff, but neither is officially registered. It -would be better if one official MIME type were registered and used -everywhere.

- -

To try to get one official MIME type for these files, I've brought -up the topic on -the -media-types mailing list. If you are interested in discussion -which MIME type to use as the official for patch files, or involved in -making software using a MIME type for patches, perhaps you would like -to join the discussion?

- -

As usual, if you use Bitcoin and want to show your support of my -activities, please send Bitcoin donations to my address -15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.

-
-
- - - Tags: debian, english, standard. - - -
-
-
-

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