get_cardinality

IoT.Client.get_cardinality(**kwargs)

Returns the approximate count of unique values that match the query.

Requires permission to access the GetCardinality action.

See also: AWS API Documentation

Request Syntax

response = client.get_cardinality(
    indexName='string',
    queryString='string',
    aggregationField='string',
    queryVersion='string'
)

Parameters

• indexName (string) -- The name of the index to search.
• queryString (string) --

  [REQUIRED]

  The search query string.

• aggregationField (string) -- The field to aggregate.
• queryVersion (string) -- The query version.

Return type

dict

Returns

Response Syntax

{
    'cardinality': 123
}

Response Structure

• (dict) --

  • cardinality (integer) --

    The approximate count of unique values that match the query.

Exceptions

• IoT.Client.exceptions.InvalidRequestException
• IoT.Client.exceptions.ThrottlingException
• IoT.Client.exceptions.UnauthorizedException
• IoT.Client.exceptions.ServiceUnavailableException
• IoT.Client.exceptions.InternalFailureException
• IoT.Client.exceptions.ResourceNotFoundException
• IoT.Client.exceptions.InvalidQueryException
• IoT.Client.exceptions.InvalidAggregationException
• IoT.Client.exceptions.IndexNotReadyException