Point your AWS IoT Rule (HTTPS action) at this URL. For the demo, the header is optional unless AWS_IOT_INGEST_SHARED_SECRETis configured. When configured, include the shared secret in thex-ingest-secretheader.

POST /api/public/ingest/telemetry
content-type: application/json
x-ingest-secret: <optional for demo>

{
  "thing": "hica-demo-node-001",
  "send_count": 129,
  "soil_percent": 0,
  "soil_raw": 3496,
  "soil_status": "DRY",
  "temp_c": 29.25,
  "temp_ok": true,
  "battery_voltage": 3.82,
  "battery_percent": 54,
  "uptime_ms": 399816
}