my-instantly-project/
├── src/
│   ├── instantly/
│   │   ├── client.ts       # Instantly client wrapper
│   │   ├── config.ts       # Configuration management
│   │   └── utils.ts        # Helper functions
│   └── index.ts
├── tests/
│   └── instantly.test.ts
├── .env.local              # Local secrets (git-ignored)
├── .env.example            # Template for team
└── package.json

# Copy environment template
cp .env.example .env.local

# Install dependencies
npm install

# Start development server
npm run dev

{
  "scripts": {
    "dev": "tsx watch src/index.ts",
    "test": "vitest",
    "test:watch": "vitest --watch"
  }
}

import { describe, it, expect, vi } from 'vitest';
import { InstantlyClient } from '../src/instantly/client';

describe('Instantly Client', () => {
  it('should initialize with API key', () => {
    const client = new InstantlyClient({ apiKey: 'test-key' });
    expect(client).toBeDefined();
  });
});

vi.mock('@instantly/sdk', () => ({
  InstantlyClient: vi.fn().mockImplementation(() => ({
    // Mock methods here
  })),
}));

# Enable verbose logging
DEBUG=INSTANTLY=* npm run dev