A service-activator component for eventstore
Project description
atomicpuppy
A service-activator component for eventstore, written in Python
A Brief and Mostly Useless Quickstart:
# config.yaml
atomicpuppy:
host: localhost
port: 2113
# each stream will be polled by a separate async http client
streams:
- stream_a
- stream_b
- stream_with_a_#date#
# the counter keeps track of which messages have been processed
counter:
redis:
host: localhost
port: 6379
# main.py
# AtomicPuppy uses asyncio coroutines for concurrent IO
import asyncio
import logging
import signal
from atomicpuppy import AtomicPuppy
# AtomicPuppy needs a callback to pass you messages.
def handle(msg):
print(msg)
# Config is read from yaml files.
ap = AtomicPuppy('config.yaml', handle)
loop = asyncio.get_event_loop()
# to kill the puppy, call stop()
def stop():
logging.debug("SIGINT received, shutting down")
ap.stop()
loop.add_signal_handler(signal.SIGINT, stop)
# and to start it call start.
loop.run_until_complete(ap.start())
Run the tests
A tox.ini file is provided to run the tests with different versions of Python.
To run the tests:
- Make sure you have the Python 3.6, 3.7, 3,8, 3.9 and 3.10 headers installed (for Ubuntu please refer to https://launchpad.net/~deadsnakes/+archive/ubuntu/ppa)
pip install -r test-requirements.txtfrom the root folder of the repository- Run
toxfrom the root folder of the repository
Prepare and run the tests on Mac with pyenv
Install pyenv and pyenv-virtualenv and python versions
brew install pyenv pyenv-virtualenv
Add the following lines to your .zshrc (check latest pyenv doc):
export PYENV_ROOT="$HOME/.pyenv"
export PATH="$PYENV_ROOT/bin:$PATH"
eval "$(pyenv init --path)"
eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"
pyenv install 3.6.15
pyenv install 3.7.12
pyenv install 3.8.12
pyenv install 3.9.9
pyenv install 3.10.1
Check the latest versions, install the latest minor from each major version.
Create a virtual environment
pyenv virtualenv 3.10.1 atomicpuppy
pyenv activate atomicpuppy
pip install tox-pyenv
pip install -r test-requirements.txt
Run the tests
pyenv local atomicpuppy 3.6.13 3.7.10 3.8.10 3.9.5
tox
About python version
There is a bug in asyncio for python3.4 that was fixed in other versions. This is the bug report: https://bugs.python.org/issue23812 Because of that we have dropped support for python3.4 and we recommend to use python3.7.
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