Get Data from Device

TagoIO Devices and Connectors
1

How can I get Today, yesterday and last month (last day) data from device?

2

You mean using analysis or the Restful API?

Basically, in both methods, you need to use the end_date filter for your query.

End date accepts both an ISO-8601 format or a relative date string.

Restful API (documentation):

curl --location --request GET 'https://api.tago.io/data?variable=temperature&end_date=1%20day' \
--header 'device-token: b4766ce8-7d31-cdbb-548d-c0bcb71fbf8f'

The query above is using relative date of 1 day. It will get only data for yesterday in this specific case. You can add qty=1 querystring to receive only 1 data.

Analysis (documentation):

const device = new Device({ token: "your-device-token" });
const result = await device.getData({ variables: ["temperature"], end_date: "1 day" });

Same as the Restful API example, but to be used inside an Analysis.

Notice that you must import the Device from the sdk adding the line const { Device } = require("@tago-io/sdk") to your script.

3

Hi,

How can I query data for any specific date like :
const data = await device.getData({
variables: [your_variable],
start_date: “2022-06-13”
});

or

const data = await device.getData({
variables: [your_variable],
start_date: “2022-05-31”
});

Isn’t seem to be working, Sometimes I get data of future date also. Lets say I want to fetch data of 06/15/2022 but in result I also get data of 06/15/2022. Please help.

4

Hi Milind,

You want to use end_date instead of start_date.

start_date will set the query to get data as from the date.

end_date will set the query to get data until the date

5

Hi there guys,

Is there any way to get data from API or SDK without using “Device-Token”? Is there any way to control the permission of each device token? My concerning is that I Cannot control the privileges from this token, and then a third party user which has the knowledge of this device token can delete data using Tago API.

6

Hi Ricardo,

Device token is required to authenticate in the TagoIO API. But you have some ways to resolve the device token; the most common is using the SDK Utils function getDevice.

Code example:

async function example(context, scope) {
  const environment = Utils.envToJson(context.environment);
  if (!environment) {
    throw new Error("Missing environment variables");
  }

  const account = new Account({ token: environment.account_token });

  // Getting up to 10,000 devices to resolve the token
  const devices = await account.devices.list({
    page: 1,
    fields: ["id", "name", "bucket", "tags"],
    filter: {
      tags: [{ key: "device_type", value: "meter" }],
    },
    amount: 10000,
  });

  for (const dev of devices) {
    const device = await Utils.getDevice(account, dev.id);
    const data = await device.getData(/* ... */);
    // do something with data
  }
}

NOTE: You need a profile token to give permission for the analysis to access your devices.