get-statistics¶

Description¶

Returns the count, average, sum, minimum, maximum, sum of squares, variance, and standard deviation for the specified aggregated field. If the aggregation field is of type String , only the count statistic is returned.

Requires permission to access the GetStatistics action.

Synopsis¶

  get-statistics
[--index-name <value>]
--query-string <value>
[--aggregation-field <value>]
[--query-version <value>]
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]

Options¶

--index-name (string)

The name of the index to search. The default value is AWS_Things .

--query-string (string)

The query used to search. You can specify “*” for the query string to get the count of all indexed things in your Amazon Web Services account.

--aggregation-field (string)

The aggregation field name.

--query-version (string)

The version of the query used to search.

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those 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. This may not be specified along with --cli-input-yaml.

--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. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command. The generated JSON skeleton is not stable between versions of the AWS CLI and there are no backwards compatibility guarantees in the JSON skeleton generated.

See ‘aws help’ for descriptions of global parameters.

Examples¶

Note

To use the following examples, you must have the AWS CLI installed and configured. See the Getting started guide in the AWS CLI User Guide for more information.

Unless otherwise stated, all examples have unix-like quotation rules. These examples will need to be adapted to your terminal’s quoting rules. See Using quotation marks with strings in the AWS CLI User Guide .

To search the device index for aggregate data

The following get-statistics example returns the number of things that have a property called connectivity.connected set to false (that is, the number of devices that are not connected) in their device shadow.

aws iot get-statistics \
    --index-name AWS_Things \
    --query-string "connectivity.connected:false"

Output:

{
    "statistics": {
        "count": 6
    }
}

For more information, see Getting Statistics About Your Device Fleet in the AWS IoT Developer Guide.

Output¶

statistics -> (structure)

The statistics returned by the Fleet Indexing service based on the query and aggregation field.

count -> (integer)

The count of things that match the query string criteria and contain a valid aggregation field value.

average -> (double)

The average of the aggregated field values.

sum -> (double)

The sum of the aggregated field values.

minimum -> (double)

The minimum aggregated field value.

maximum -> (double)

The maximum aggregated field value.

sumOfSquares -> (double)

The sum of the squares of the aggregated field values.

variance -> (double)

The variance of the aggregated field values.

stdDeviation -> (double)

The standard deviation of the aggregated field values.

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