Update Device Metadata Value
You can update the value of any single-value (text, number, hostspot, device name, list, int, imei, iccid) device meta field using its identifier.
GET
https://{server_address}/external/api/device/meta/update?token={token}&metaFieldId={metaFieldId}&value={metaFieldValue}
Example
https://fra1.blynk.cloud/external/api/device/meta/update?token=EzHOlVG4dOdkPozcZutxK0AlkrsJAVff&metaFieldId=3&value=Sample+value
Response
Success
200 OK
Invalid token error
400 Bad Requets
{"error":{"message":"Invalid token."}}
Wrong metafield identifier format
400 Bad Requets
{"error":{"message":"Wrong metaField format"}}
Metafield is not found
400 Bad Requets
{"error":{"message":"MetaField doesn't exist"}}
Wrong metafield value
400 Bad Requets
{"error":{"message":"Wrong value"}}
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