There are two ways to run the bot

You can install the docker from link and docker-compose (https://docs.docker.com/compose/install/)

Step 1: Clone the git repo: git clone https://github.com/blockcollider/market_maker.git

Step 2: cd into the folder: cd market_maker and run ./mmm_bot.sh start to config your strategy.

Note: The webserver is authorized by an ephemeral token generated on the server bootstrap. If you forget the token, you can get it via running this command: ./mmm_bot.sh start, which gives you the url to access your webserver

./mmm_bot.sh will show you how to use the cli.

You need to follow these steps only when you choose to run the bot on bare operating system. For running using Docker you can fast forward to "run using docker" section

• python >= 3.7
• nodejs >= 10.16
• yarn
• poetry

Ubuntu 18.04 LTS has both 2 and 3 python versions of python present. We want to use python 3 for setup and running of MM bot but we need 3.7 version

run:

• apt install python3.7 python3.7-dev python3-distutils python3.7-venv for installing latest python 3.7 and poetry's needed dependencies
• curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python3.7 (note the 3.7 at the end)
• sed -i 's/python/python3.7/' $HOME/.poetry/bin/poetry to use ubuntu's custom python3 environment

TBD

poetry install
cd mm_bot/exchange/maker && yarn && cd -

• MMM bot uses sqlite database
• default database location is db/database.sqlite, you can change MMBC_DATABASE_URL to any location
  • mind that MMBC_DATABASE_URL accepts full SQLAlchemy connection string, default is sqlite+pysqlite:///db/database.sqlite
• run poetry run alembic upgrade head to create sqlite DB file and apply all migrations

you can run poetry run pytest in the root directory, all tests should pass before running

poetry run python server.py

poetry run python mmm_bot.py

It means there is more liquidity in the taker exchanges with smaller bid-ask spread.

There are two types of orders: buy order and sell order

1. Buy order. Bot creates a limit buy order on the maker exchange. Once this order is filled, it immediately creates an opposite sell order in the taker exchange. This requires the Price(bid, taker exchange) > Price(bid, maker exchange) when opening a buy order in the maker exchange

2. Sell order. Bot creates a limit sell order in the maker exchange. Once this order is filled, it immediately creates an opposite buy order in the taker exchange. This requires the Price(ask, taker exchange) < Price(ask, maker exchange) when opening a buy order in the maker exchange

Since the MMM Bot is a local client, your private keys and API keys are as secure as the computer you use. The keys are only used to sign authorized instructions locally on the local machine, and only signed/authorized transactions are sent out from the client. Always use caution and make sure the computer you are running MMM Bot on is safe, secure, and free from unauthorized access.