Update Datastream Value

Update the Datastream value

GET https://{server_address}/external/api/update?token={token}&{pin}={value}

This endpoint allows you to update the value of the Datastream value via GET request. Example: https://blynk.cloud/external/api/update?token=ffujYGgbf805tgsf&v1=100

Path Parameters

Name	Type	Description
value	string	The desired value of the Datastream. Will be parsed based on the Datastream data type (int, double, string) and bounded with min / max values of datastream settings. In case value doesn't match the Datastream type error will be returned.
pin	string	Virtual pin number (should start with "v")
token	string	Device auth token

200 Success

400 'Could not find a device token' or 'Wrong pin format' or 'Value doesn't match the Datastream data type' or 'No datastream setup for that pin'

{"error":{"message":"Invalid token."}}
or
{"error":{"message":"Wrong pin format."}}
or
{"error":{"message":"Value doesn't match the Datastream data type."}}
or
{"error":{"message":"No datastream setup for that pin."}}

You can get the Device auth token in Device info.

Update value by Datastream ID

GET https://{server_address}/external/api/update?token={token}&dataStreamId={id}&value={value}

This endpoint allows you to update the value of the Datastream value via GET request. Example: https://blynk.cloud/external/api/update?token=Rps15JICmtRVbFyS_95houlLbm6xIQ2L&dataStreamId=1&value=100

Path Parameters

Name	Type	Description
value	string	The desired value of the Datastream. Will be parsed based on the Datastream data type (int, double, string) and bounded with min / max values of datastream settings. In case value doesn't match the Datastream type error will be returned.
dataStreamId	integer	Datastream Id
token	string	Device auth token

200 Success

400 Could not find a device token or Wrong dataStreamId format or Value doesn't match the Datastream data type

{"error":{"message":"Invalid token."}}

or

{"error":{"message":"Wrong dataStreamId format."}}

or

{"error":{"message":"Value doesn't match the Datastream data type"}}

To update Datastreams that have 2 values, for example Location Datastream, use this call:

/external/api/update?token={token}&dataStreamId={id}&value=lon&value=lat

or

/external/api/update?token={token}&pin=V1&value=lon&value=lat