Python 3 needs to be installed together with virtualenv.

Use python3 --version to check if python3 is installed

python3 -m virtualenv venv to create a virtual env.

source venv/bin/activate to active the environment

pip install -r requirements.txt to install dependencies

Put the following data in .env file

NETWORK=KOVAN
CHAINID=42
INFURA_TOKEN=
DOCS_BASEURL=
CONTRACTS=
INDEXER_TIMEOUT=60

Run python worker_initial.py to index data that is not updated as much.

Worker runs periodically in another thread if export FLASK_ENV=development, run in different process in production.

Run python app.py (inside you virtualenv) to start the web server.