Overview

jmin is a lightweight JavaScript utility for transforming structured string data—like JSON—by replacing token identifiers using customizable key maps. It’s ideal for scenarios where you need to minify, obfuscate, or rewrite tokenized data streams.

✨ Features

• 🔄 Bidirectional key mapping via getKeyMap
• 🧠 Intelligent token parsing with escape and quote handling
• 🔧 Stream transformation with optional key/value replacement

📦 Installation

npm install jmin

🔧 Usage

import { transform, getKeyMap } from 'jmin';

const keyMap = {
  user: 'u1',
  admin: 'a1',
};

const reverseMap = getKeyMap(keyMap);

const input = '{"role": "user", "type": "admin"}';

const output = transform(input, keyMap, reverseMap);

console.log(output);
// Output: '{"role": "u1", "type": "a1"}'

🧩 API

transform(data: string, km?: IKey, vm?: IKey): string

Transforms the input string by replacing tokens using the provided key map (km) and value map (vm).

getKeyMap(km: IKey): IKey

Returns a reversed key map for value-to-key lookup.