We use extended JSON schema specification to define Kids First Graph Model. Nodes (a.k.a entities) in the graph are represented by individual JSON documents while edges are defined as normal JSON properties referencing to related nodes. As a guiding principle, we leverage JSON schema as much as possible to define and enforce constraints in the graph model.
Note: the work is still at early phase, but this should give us a good starting point to explore modeling more complicated use cases, such as, pedigrees, clinical longitudinal data and phenotype ontology etc.
A lightweight API service is included to serve the JSON schemas online. To start the service using default settings:
python app.py
The schemas will be available under: http://localhost:8081/schemas/kf-graph-model/v0.0.1/. Append the entity type to the URL to get it's own schema, eg, read_group
Run tests with pytest.