@mgarlik/json-filter

Shared TypeScript filter/rule engine for backend and frontend applications.

Scripts

• npm run build - compile package to dist/ and generate type declarations
• npm test - run unit tests with Vitest
• npm run test:watch - run tests in watch mode
• npm run lint - type-check source code

Usage

import { matchJson, type JsonFilter } from "@mgarlik/json-filter";

type Product = {
  status: string;
  price: number;
};

const filter: JsonFilter<Product> = {
  status: { $eq: "active" },
  price: { $gte: 100 },
};

const ok = matchJson({ status: "active", price: 120 }, filter);

Documentation

• matchJson docs

Publish

1. Update version in package.json.
2. Run npm run build.
3. Publish with npm publish.