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piker
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the FOSS computational trading platform (for non-tinas..) https://github.com/pikers/piker
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Tyler Goodlet 4f387ea2be Fix subscriptions and connection handling 
Oh boy where to start.

- Handle broken streams in the `StreamQueue` gracefully; terminate the
  async generator.
- When a stream queue connection is unwritable discard its subscriptions
  inside the quoter task
- If all subscriptions are discarded for a broker then tear down its
  quoter task
- Use listener parent nursery for spawning quoter tasks
- Make broker subs data structures global/shared between conn
  handler tasks
- Register the `tickers2qs` entry *after* instantiating broker client(s)
  (avoids race condition when mulitple client connections are coming
  online simultaneously)
- Push smoke quotes to every client not just the first that connects
- Track quoter tasks in a cross-task set
- Handle unsubscriptions more correctly
 		2018-04-20 13:18:35 -04:00
piker Fix subscriptions and connection handling 2018-04-20 13:18:35 -04:00
tests Update tests 2018-04-10 21:57:28 -04:00
.gitignore Initial commit 2018-01-15 22:58:02 -05:00
.travis.yml Initial travisCI file 2018-04-11 13:46:21 -04:00
MANIFEST.in Extend install docs 2018-02-15 13:33:53 -05:00
Pipfile Update dev deps 2018-03-29 12:50:53 -04:00
Pipfile.lock Update lock file 2018-04-11 00:04:34 -04:00
README.rst Document daemon usage 2018-04-20 13:18:35 -04:00
setup.py Use msgpack for quote-packet serialization 2018-04-20 11:43:14 -04:00

README.rst

piker

Anti-fragile trading gear for hackers, scientists, stay-at-home quants and underpants warriors.

travis

Install

piker is currently under heavy alpha development and as such should be cloned from this repo and hacked on directly.

A couple bleeding edge components are being used atm pertaining to async ports of libraries for use with trio.

Before installing make sure you have pipenv. For a development install:

git clone git@github.com:pikers/piker.git
cd piker
pipenv install --dev -e .
pipenv shell

To start the real-time index ETF watchlist:

piker watch indexes -l info

If you want to see super granular price changes, increase the broker quote query rate with -r:

piker watch indexes -l info -r 10

It is also possible to run the broker-client micro service as a daemon:

pikerd -l info

Then start the client app as normal:

piker watch indexes -l info

Laggy distros

For those running pop-culture distros that don't yet ship python3.6 you'll need to install it as well as kivy source build dependencies since currently there's reliance on an async development branch.

Tech

piker is an attempt at a pro-grade, next-gen open source toolset for trading and financial analysis. As such, it tries to use as much cutting edge tech as possible including Python 3.6+ and trio.