To run this demo, first clone this repository to a local directory
git clone ....
Change into the created directory and create a virtualenv inside and activate it
virtualenv -p python3.6 .
. bin/activate
You can always deactivate it by typing deactivate.
While you are at it you could ensure that you are using the latest pip version
pip install --upgrade pip
Then install required python libraries
pip install -r requirements.txt
Copy a SQLite database file into the directory and set the path in models.py
engine = sqlalchemy.create_engine('sqlite:///<PATH_TO_SQLITE_DB>')
Possibly extend the database DB schema in models.py according to SQAlchemy Types
Run App from command line
./app.py
And open a browser in http://localhost:5000/graphql
Have fun!