Adding to RDF Graph

This tutorial will walk you through how to process tabular data and add them to an rdflib graph

Installation

pip install rdflib quadipy

Running quadipy

Using the same config from earlier

{
    "primary_key": "id",
    "source_name": "star wars",
    "predicate_mapping": {
        "height": {
            "predicate_uri": "https://schema.org/height"
        },
        "name": {
            "predicate_uri": "https://schema.org/name"
        },
        "birth_year": {
            "predicate_uri": "https://schema.org/birthDate"
        },
        "gender": {
            "predicate_uri": "https://schema.org/gender"
        }
    }
}

Copy this json blob to a file named example.json

from quadipy import GraphFormatConfig
from rdflib import Graph

record = {
    "id": 1,
    "name": "Luke Skywalker",
    "height": "172",
    "mass": "77",
    "hair_color": "blond",
    "skin_color": "fair",
    "eye_color": "blue",
    "birth_year": "19BBY",
    "gender": "male",
    "homeworld": "https://swapi.dev/api/planets/1/",
    "films": [
        "https://swapi.dev/api/films/2/",
        "https://swapi.dev/api/films/6/",
        "https://swapi.dev/api/films/3/",
        "https://swapi.dev/api/films/1/",
        "https://swapi.dev/api/films/7/"
    ],
    "species": [
        "https://swapi.dev/api/species/1/"
    ],
    "vehicles": [
        "https://swapi.dev/api/vehicles/14/",
        "https://swapi.dev/api/vehicles/30/"
    ],
    "starships": [
        "https://swapi.dev/api/starships/12/",
        "https://swapi.dev/api/starships/22/"
    ],
    "created": "2014-12-09T13:50:51.644000Z",
    "edited": "2014-12-20T21:17:56.891000Z",
    "url": "https://swapi.dev/api/people/1/"
}

config = GraphFormatConfig.parse_file("example.json")
graph = Graph()

quads = config.quadify(record)
for quad in quads:
    graph.add(quad.to_tuple())

print(graph.serialize())

Copy this code into a file named main.py

Run the code by running:

python main.py

And output should be in turtle serialized graph

@prefix ns1: <https://schema.org/> .

<1> ns1:birthDate "19BBY" ;
    ns1:gender "male" ;
    ns1:height "172" ;
    ns1:name "Luke Skywalker" .