Get Device Metadata Value
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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}
This endpoint allows you to get the device metaField value by its id.
Example:
https://blynk.cloud/external/api/device/meta?token=Rps15JICmtRVbFyS_95houlLbm6xIQ2L&metaFieldId=1
metaFieldId
string
MetaField id.
token
string
Device auth token