{
    "printer_name": "POS-58",
    "server_url": "http://127.0.0.1:8081",
    "device_token": "6d599d2f4c51ec6cbf86c209ef3205c47d69dca733dfb7ea317b8cf5e5602ebf",
    "poll_interval_seconds": 2,
    "mode": "spooler",
    "paper_width_chars": 42,
    "log_dir": "logs"
}