Note: You are viewing the documentation for an older major version of the AWS CLI (version 1).

AWS CLI version 2, the latest major version of AWS CLI, is now stable and recommended for general use. To view this page for the AWS CLI version 2, click here. For more information see the AWS CLI version 2 installation instructions and migration guide.

[ aws . iot ]



Use this API to define a Custom Metric published by your devices to Device Defender.

Requires permission to access the CreateCustomMetric action.

See also: AWS API Documentation

See 'aws help' for descriptions of global parameters.


--metric-name <value>
[--display-name <value>]
--metric-type <value>
[--tags <value>]
[--client-request-token <value>]
[--cli-input-json <value>]
[--generate-cli-skeleton <value>]


--metric-name (string)

The name of the custom metric. This will be used in the metric report submitted from the device/thing. The name can't begin with aws: . You can't change the name after you define it.

--display-name (string)

The friendly name in the console for the custom metric. This name doesn't have to be unique. Don't use this name as the metric identifier in the device metric report. You can update the friendly name after you define it.

--metric-type (string)

The type of the custom metric.


The type number only takes a single metric value as an input, but when you submit the metrics value in the DeviceMetrics report, you must pass it as an array with a single value.

Possible values:

  • string-list
  • ip-address-list
  • number-list
  • number

--tags (list)

Metadata that can be used to manage the custom metric.


A set of key/value pairs that are used to manage the resource.

Key -> (string)

The tag's key.

Value -> (string)

The tag's value.

Shorthand Syntax:

Key=string,Value=string ...

JSON Syntax:

    "Key": "string",
    "Value": "string"

--client-request-token (string)

Each custom metric must have a unique client request token. If you try to create a new custom metric that already exists with a different token, an exception occurs. If you omit this value, Amazon Web Services SDKs will automatically generate a unique client request.

--cli-input-json (string) Performs service operation based on the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, the CLI values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See 'aws help' for descriptions of global parameters.


To create a custom metric published by your devices to Device Defender

The following create-custom-metric example creates a custom metric that measures battery percentage.

aws iot create-custom-metric \
    --metric-name "batteryPercentage" \
    --metric-type "number" \
    --display-name "Remaining battery percentage." \
    --region us-east-1 \
    --client-request-token "02ccb92b-33e8-4dfa-a0c1-35b181ed26b0"


    "metricName": "batteryPercentage",
    "metricArn": "arn:aws:iot:us-east-1:1234564789012:custommetric/batteryPercentage"

For more information, see Custom metrics in the AWS IoT Core Developer Guide.


metricName -> (string)

The name of the custom metric to be used in the metric report.

metricArn -> (string)

The Amazon Resource Number (ARN) of the custom metric. For example, ``arn:aws-partition :iot:region :accountId :custommetric/metricName ``