This example highlights the ability to filter queries in graphene-sqlalchemy.

The project contains two models, one named Department and another named Employee.

First you'll need to get the source of the project. Do this by cloning the whole Graphene-SQLAlchemy repository:

# Get the example project code
git clone https://github.com/graphql-python/graphene-sqlalchemy.git
cd graphene-sqlalchemy/examples/filters

It is recommended to create a virtual environment for this project. We'll do this using virtualenv to keep things simple, but you may also find something like virtualenvwrapper to be useful:

# Create a virtualenv in which we can install the dependencies
virtualenv env
source env/bin/activate

Install our dependencies:

pip install -r requirements.txt

The following command will setup the database, and start the server:

python app.py

Now head over to your favorite GraphQL client, POST to http://127.0.0.1:5000/graphql and run some queries!