gnata-js

Browser JSONata evaluation via gnata WebAssembly. Runs the same Go evaluator used by backend services in the browser for expression parity — not a performance optimization over the jsonata npm package.

Install

npm install gnata-js

Usage

import { jsonata } from 'gnata-js';

const result = await jsonata('Account.Order.Product.Price').evaluate({
  Account: {
    Order: [
      { Product: { Price: 34.45 } },
      { Product: { Price: 21.67 } },
    ],
  },
});
// [34.45, 21.67]

Asset Setup

The package ships gnata.wasm and wasm_exec.js in node_modules/gnata-js/wasm/. Copy them so your web server serves them at /wasm/:

// rspack / webpack
new CopyPlugin({
  patterns: [{ from: 'node_modules/gnata-js/wasm', to: 'wasm' }],
});

Override paths with configure() if needed:

import { jsonata, configure } from 'gnata-js';
configure({ wasmUrl: '/assets/gnata.wasm', execJsUrl: '/assets/wasm_exec.js' });

License

MIT