ontologytoapi 0.0.5

Multi purpose API Generator based on an Ontology Framework.

OntologyToAPI

This project is an ontology-driven API generator designed for backend development by transforming structured domain knowledge into fully functional APIs. The tool accepts ontologies specified in Turtle (.ttl), Resource Description Framework (.rdf) and Web Ontology Language (.owl).

Ontological Framework:

• The following classes, relationships and data properties serve as a semantic blueprint for both metadata and business models.

The ontological framework is composed of two main modules:

• Metadata Ontology Module: This module defines the essential classes and properties required to describe the metadata and its sources (e.g. Query to be executed on the CommunicationTechnology).
• BusinessModel Ontology Module: This module captures the specific business logic and rules governing some operation, it requires an ExternalCode concretization, and it can require any metadata or parameter (To be sent in the API request).
• ExternalCode Ontology Module: This module has all the technical details to connect to an external code, it also adds the possibility to dynamically require python packages.
• Communications Ontology Module: This module describes the communication technologies that can be used to fetch the data of some metadata in multiple forms (e. g).

From now on you must be ready to go and create your own ontological specification importing the Ontology Modules and extending it. You can do this by using the Protégé ontology editor (https://protege.stanford.edu/). Or if you prefer you can use any text editor to create your ontology files in the supported formats (.ttl, .rdf, .owl).

Step 1: Installing the Package

# Now inside the environment install the python package
pip install ontologytoapi

Step 2: Running

• If you want to see a quick ontology sample in .ttl please access the following link: https://github.com/JCGCosta/OntologyToAPI/tree/master/samples
• With you metadata and business models ontologies implemented you can generate your API by having the following python file as an entry point:

import uvicorn
from core.APIGenerator import Generator

if __name__ == "__main__":
    APIGen = Generator(showLogs=True)
    APIGen.load_ontologies(paths=[
        "Your/Metadata/Ontology/.ttl.owl.rdf"
    ])
    APIGen.load_ontologies(paths=[
        "Your/BusinessModel/Ontology/.ttl.owl.rdf"
    ])
    APIGen.serialize_ontologies()
    api_app = APIGen.generate_api_routes()
    uvicorn.run(api_app, host="127.0.0.1", port=5000)

Change Log

0.0.5 (27/10/2025)

FIRST RELEASE

• First fixes on README file.
• Added Ontological Framework diagram.
• Added ontology concrete sample.

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