| JSON Field | Loki Label | Notes |
|---|---|---|
| date | timestamp | RFC3339; entries older than 7 days are skipped |
| level | level | info / warn / error / debug |
| message | log line | Falls back to action, then constructed string |
| action | action | |
| appVersion | app_version | |
| extra | extra | JSON-serialized when object |
| paymentDevice.paymentDeviceId | device_id | |
| appleDevice.name + .os | apple_device | Combined: “name os” |
All other fields are flattened automatically: camelCase → snake_case,
nested objects joined with “_”
(e.g. paymentDevice.firmwareVersion → payment_device_firmware_version).
| ||