Get Historical Data From Device
How to get historical data from a single device for a specified time range
get
https://{server_address}
/external/api/data/get?token={token}&period={PERIOD}&granularityType={TYPE}&sourceType={SOURCE_TYPE}&tzName={tzName}&format={FORMAT}&output=FILE&pin={pin}
Let's say you live in Sydney, Australia and there is a garage door opener and want to get an exact time you departed today in one file. The accuracy you need is up to 1 minute and it should be in "YYYY-MM-DD HH:MM:SS" format. Your device uses Datastream with ID 20 and virtual pin 6 for open/close commands. Let's say you also need to get the list of all the Events that were recorded during this period.
API call will look like this:
https://blynk.cloud/external/api/data/get?token=HjKjfij84050fege&period=DAY&granularityType=MINUTE&sourceType=AVG&tzName=America/New_York&format=ISO_SIMPLE&sendEvents=true&output=FILE&dataStreamId=20`JSON Output example:
{
"meta":
[
{
"name": "data_stream_name",
"type": "String"
},
{
"name": "ts",
"type": "UInt32"
},
{
"name": "value",
"type": "Float64"
}
],
"data":
[
{
"data_stream_name": "",
"ts": 2021-05-14 12:25:00,
"value": 1.6100000000000003
}
],
"rows": 1,
"rows_before_limit_at_least": 1
}