@ontologos/wasm

WebAssembly bindings for OntoLogos.

Release CI publishes the wasm-pack .wasm to the Wasmer Registry as eddiethedean/ontologos (see wasmer.toml). Browser usage still requires this package’s JS glue.

Build

# Install wasm-pack: https://rustwasm.github.io/wasm-pack/installer/
cd crates/ontologos-wasm
npm install
npm run build
npm test

Browser usage

import init, { OntologyBuilder, Reasoner } from "@ontologos/wasm";

await init({ module_or_path: wasmUrl });

const builder = new OntologyBuilder();
builder.addClass("http://example.org/Pizza");
builder.addClass("http://example.org/Food");
builder.subclassOf("http://example.org/Pizza", "http://example.org/Food");
const ontology = builder.build();

const reasoner = new Reasoner(ontology, "el");
const report = reasoner.classify();
console.log(report);

Load OWL from bytes or text (no filesystem):

const ontology = Ontology.fromBytes(new TextEncoder().encode(owlString));
const reasoner = new Reasoner(ontology, "auto");

Security

• fromBytes / fromText use strict parse defaults for untrusted uploads.
• Use fromBytesLenient / fromTextLenient only for trusted corpora.
• Use fromJsonWithLimits for user JSON with tightened max_json_bytes.
• DL reasoning can block the main thread — set budgetSecs and prefer Web Workers.

Full guide: WebAssembly bindings

API

Mirrors the Python bindings: Ontology, OntologyBuilder, Reasoner with classify(), checkConsistency(), isEntailed(), query(), and incremental axiom edits.