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A helpful conference Discord Bot

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Europython Discord Bot

An easy to deploy conference bot that manages roles for attendees via registration, notifies about upcoming sessions. Exposes Discord server statistics to organizers. We hosted the bot on Hetzner. And deployed with a single click Action from GitHub 😎.

registration_view.png

Overview

The main method in EuroPythonBot/bot.py is the entry point for the bot. I't a good starting point to start browsing the codebase. It requires a .secrets file in the root of the repository with DISCORD_BOT_TOKEN and PRETIX_TOKEN environment variables.

Registration

At EuroPython, we use pretix as our ticketing system.

The bot utilizes the Pretix API to fetch ticket information and creates an in-memory key-value store to retrieve the ticket type for a given Discord user. The mapping between ticket types and Discord roles is defined in a JSON file, such as ticket_to_roles_prod.json, and is used by the bot to assign roles to users.

There are safeguard methods in place to prevent users from registering multiple times and to make a direct Pretix API call in case the user information is not available in the in-memory store.

Program notifications

Is a service to push the programme notification to Discord. Pretalx API is used to fetch the programme information, and config.toml holds information about livestream URLs.

Organizers extension

A set of commands that are available only for organizers that are allowing to get statistics about the Discord server.

Setup

Install Python, Pipenv, Pyenv (Ubuntu)

# dependencies of readline, sqlite3, ctypes
sudo apt install libreadline-dev libsqlite3-dev lzma libbz2-dev liblzma-dev

# python, pip
sudo apt install python3 python3-pip

# pyenv
curl https://pyenv.run | bash
pyenv install 3.11.4

echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bashrc
echo '[[ -d $PYENV_ROOT/bin ]] && export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(pyenv init -)"' >> ~/.bashrc
. ~/.bashrc

# pipenv
python3 -m pip install pipenv
echo 'alias pipenv="python3 -m pipenv"' >> ~/.bashrc
. ~/.bashrc

Using pipenv

This is a summary of useful pipenv commands. Please refer to the pipenv documentation for details.

# generate venv from Pipfile.lock
pipenv install
pipenv install --dev  # include dev dependencies

# activate pipenv-generated venv
pipenv shell

# reset all packages to versions pinned in Pipfile.lock
pipenv sync
pipenv sync --dev  # include dev dependencies

# install package and update all other packages
pipenv install package
pipenv install --dev package  # install as dev dependency

# upgrade only specific package without updating all other packages
pipenv upgrade package
pipenv upgrade --dev package  # upgrade as dev dependency

# remove package and update all other packages
pipenv uninstall package

# remove only specific packages without updating all other package
# [impossible]

Clone repo, install dependencies, run tests

# clone repo, install dependencies
git clone https://github.com/EuroPython/discord europython-discord/
cd europython-discord

# install dependencies
pipenv install --dev

# run linting and tests
pipenv run black --check .
pipenv run isort --check .
pipenv run flake8 .
pipenv run pytest .

Configuration

Create config.local.toml file in EuroPythonBot directory, it would be used instead of config.toml if exists.

Add .secrets file to the root of the repository with the following content:

DISCORD_BOT_TOKEN=<EuroPythonTestBotToken_from_1Password>
PRETIX_TOKEN=<PretixStagingToken_from_1Password>

After you have added the .secrets file, you can run the bot with the following command:

pipenv run python EuroPythonBot/bot.py

or with docker:

docker build --tag discord_bot .
docker run --interactive --tty --env DISCORD_BOT_TOKEN=$DISCORD_BOT_TOKEN --env PRETIX_TOKEN=$PRETIX_TOKEN discord_bot