@app.route('/', cors=cors_config, methods=['GET'])
def index():
    request = app.current_request

    file_name = "orders.csv"
    file_path = '/tmp/{}_{}'.format("Life", file_name)

    with open(file_path, 'w') as csvFile:
        field_names = ["OrderID", "OrderedBy", "Agent"]
        writer = csv.DictWriter(csvFile, fieldnames=field_names)
        writer.writeheader()
        for item in range(10):
            writer.writerow(
                rowdict={
                    "OrderID": str(1),
                    "OrderedBy": "noob",
                    "Agent": "pro"
                }
            )
        csvFile.close()

    with open(file_path, 'rb') as f:
        contents = f.read()
    f.close()

    file_size = os.path.getsize(file_path)

    headers = {'Content-Type': 'application/octet-stream',
        'Content-Disposition': 'attachment; filename={}'.format(file_name),
        'Content-Length': str(os.path.getsize(file_path))
    }
    return Response(body=contents, headers=headers)