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Overview

As observed in the first tutorial, there was a sharp and sudden decline in both max_air_temp(C) and max_ground_temp(C). On October 6, 2021, at 17:00:00, both signals dropped well below their normal range, possibly reflecting an unexpected environmental condition or a brief telemetry issue. To capture this behavior, let’s create the same Rule as in Step 4 of the first tutorial, but this time using the REST API instead of the UI. The endpoint we will use to create the Rule is: CreateRule.

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Create Rule

Run the cURL command below to create the Rule. 
curl -X POST "YOUR_REST_API_URL_HERE/api/v1/rules" \
  -H "Authorization: Bearer YOUR_API_KEY_HERE" \
  -H "Content-Type: application/json" \
  -d '{
    "update": {
      "name": "fl_demo_rule",
      "isEnabled": true,
      "assetConfiguration": {
        "assetIds": ["ASSET_ID"]
      },
      "conditions": [
        {
          "ruleConditionId": "condition-1",
          "expression": {
            "calculatedChannel": {
              "expression": "$1 < -50 && $2 < -60",
              "channelReferences": {
                "$1": { "name": "max_air_temp(C)" },
                "$2": { "name": "max_ground_temp(C)" }
              }
            }
          },
          "actions": [
            {
              "ruleActionId": "action-1",
              "actionType": "ANNOTATION",
              "configuration": {}
            }
          ]
        }
      ]
    }
  }'
Placeholders
  • Replace YOUR_REST_API_URL_HERE with your REST API URL obtained in the previous step.
  • Replace YOUR_API_KEY_HERE with your API key obtained in the previous step.
  • Replace fl (in fl_demo_rule) with your initials.
  • Replace ASSET_ID with the Asset ID you copied in Step 3.
{
"ruleId": "string" 
}

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View created Rule in Sift

Now that we have created the Rule using the REST API, let’s view the created Rule in Sift.
  1. In Sift, click .
  2. Click the Rules tab.
  3. In the Rule name box, enter the name of the Rule.
  4. In the Rules tab, click the name of the Rule.
Created Rule