ts-mock-factory

TypeScript Mock Data Generator: A zero-dependency parser that scans TS interface and type declarations to dynamically generate structured mock JSON datasets.

⚡ Features

• Zero Runtime Dependencies: Ultra lightweight and fast.
• TypeScript Signatures Parser: Parses basic interface and type properties (string, number, boolean, and primitive arrays).
• Customizable Seeds: Define custom overrides or dynamic generator functions for string, numeric, and boolean fields.

📦 Installation

npm install ts-mock-factory

🚀 Usage

1. CLI Usage

Generate mock JSON from a typescript file:

npx ts-mock-factory interface.ts

2. Programmatic API

import { generateMockFromType } from 'ts-mock-factory';

const tsInterface = `
  interface User {
    username: string;
    id: number;
    isAdmin: boolean;
    roles: string[];
  }
`;

const mock = generateMockFromType(tsInterface, {
  stringMock: () => "user_" + Math.random().toString(36).substring(7),
  numberMock: 100
});

console.log(mock);
/*
{
  username: "user_a3d21",
  id: 100,
  isAdmin: true,
  roles: ["user_b2a12"]
}
*/

📄 License

MIT License.