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# NFC Service
## Overview
NFC service uses the respective libnfc package to detect the presence of NFC tags and singal via an event
## Verbs
| Name | Description | JSON Parameters |
|--------------------|:-------------------------------------|:-----------------------------------------------------------------------|
| subscribe | subscribe to NFC events | *Request:* {"value": "presence"} |
| unsubscribe | unsubscribe to NFC events | *Request:* {"value": "presence"} |
## Events
| Name | Description | JSON Response |
|--------------------|:-------------------------------------|:------------------------------------------ ----------------------------|
| presence | event that reports NFC tag presence | *Response:* {"status": "detected", "uid": "042eb3628e4981"} |
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