Postman to cURL

import json

def postman_to_curl(postman_json: str, pretty: bool = False) -> str:
    data = json.loads(postman_json)
    # Handle collection format
    if 'item' in data:
        results = []
        for item in data['item']:
            req = item.get('request', {})
            results.append(build_curl(req, pretty))
        return '\n\n'.join(results)
    # Handle single request
    req = data.get('request', data)
    return build_curl(req, pretty)

def build_curl(req: dict, pretty: bool) -> str:
    method = req.get('method', 'GET').upper()
    url_obj = req.get('url', {})
    url = url_obj if isinstance(url_obj, str) else url_obj.get('raw', '')
    parts = [f'curl -X {method}']
    for header in req.get('header', []):
        val = f"{header['key']}: {header['value']}"
        parts.append(f'-H "{val}"')
    body = req.get('body', {})
    if body.get('mode') == 'raw' and body.get('raw'):
        escaped = body['raw'].replace('"', '\\"')
        parts.append(f'-d "{escaped}"')
    parts.append(f'"{url}"')
    sep = ' \\\n  ' if pretty else ' '
    return sep.join(parts)

# Example
collection = json.dumps({
    "method": "POST",
    "url": {"raw": "https://api.example.com/data"},
    "header": [{"key": "Content-Type", "value": "application/json"}],
    "body": {"mode": "raw", "raw": '{"key":"value"}'}
})
print(postman_to_curl(collection, pretty=True))