const fetch = require('node-fetch');

async function getMetadata(fields = null) {
    let url = 'https://merchant.spensit.com/api/products/metadata';
    if (fields) {
        const fieldsParam = Array.isArray(fields) ? fields.join(',') : fields;
        url += `?fields=${fieldsParam}`;
    }
    const response = await fetch(url, {
        method: 'GET',
        headers: {
            'x-api-key': process.env.API_KEY,
            'x-brand-id': process.env.BRAND_ID,
            'x-domain': 'your-domain.com'
        }
    });
    return await response.json();
}