Untitled

import json
from typing import Dict, Any

class ValidationError(Exception):
    pass

class NotFoundError(Exception):
    pass

def lambda_handler(event: Dict[str, Any], context: Any) -> Dict[str, Any]:
    try:
        body = json.loads(event.get('body', '{}'))
        
        if 'first_name' not in body:
            raise ValidationError("Missing required parameter: first_name")
            
        # Your business logic here
        result = process_data(body)
        
        return {
            "statusCode": 200,
            "body": json.dumps({"data": result})
        }
        
    except ValidationError as e:
        return {
            "statusCode": 400,
            "body": json.dumps({
                "error": {
                    "type": "ValidationError",
                    "message": str(e)
                }
            })
        }
    except NotFoundError as e:
        return {
            "statusCode": 404,
            "body": json.dumps({
                "error": {
                    "type": "NotFoundError",
                    "message": str(e)
                }
            })
        }
    except Exception as e:
        # Catch unexpected errors
        return {
            "statusCode": 500,
            "body": json.dumps({
                "error": {
                    "type": "InternalError",
                    "message": "Internal server error"
                }
            })
        }