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Get Device Metadata Value

You can get the value of any single-value (text, number, email, hostspot, device name, list, int, imei, image, iccid, device owner email) device meta field using it exact name (case sensitive).
loc.latlon is special hardcoded internal meta field to get device location "lat lon".
get
https://{server_address}
/external/api/device/meta?token={token}&metaFieldId={metaFieldId}
Get Device Metafield Value
You can get the Device auth token in Device info.