IoTDataPlane / Client / list_subscriptions

list_subscriptions

IoTDataPlane.Client.list_subscriptions(**kwargs)

Returns a list of all subscriptions for MQTT clients with active sessions, including offline clients with persistent sessions.

Requires permission to access the ListSubscriptions action.

See also: AWS API Documentation

Request Syntax

response = client.list_subscriptions(
    clientId='string',
    nextToken='string',
    maxResults=123
)
Parameters:
  • clientId (string) –

    [REQUIRED]

    The unique identifier of the MQTT client to list subscriptions for. The client ID can’t start with a dollar sign ($).

    MQTT client IDs must be URL encoded (percent-encoded) when they contain characters that are not valid in HTTP requests, such as spaces, forward slashes (/), and UTF-8 characters.

  • nextToken (string) – To retrieve the next set of results, the nextToken value from a previous response; otherwise null to receive the first set of results.

  • maxResults (integer) – The maximum number of subscriptions to return in a single request. By default, this is set to 20.

Return type:

dict

Returns:

Response Syntax

{
    'subscriptions': [
        {
            'topicFilter': 'string',
            'qos': 123
        },
    ],
    'nextToken': 'string'
}

Response Structure

  • (dict) –

    • subscriptions (list) –

      A list of topic filters and their associated Quality of Service (QoS) levels that the client is subscribed to.

      • (dict) –

        Contains information about a subscription for an MQTT client, including the topic filter and Quality of Service (QoS) level.

        • topicFilter (string) –

          The topic filter pattern that the client is subscribed to. May include MQTT wildcards such as + (single-level) and # (multi-level).

        • qos (integer) –

          The Quality of Service (QoS) level for the subscription. Valid values are 0 (at most once) and 1 (at least once).

    • nextToken (string) –

      The token to use to get the next set of results, or null if there are no additional results.

Exceptions

  • IoTDataPlane.Client.exceptions.InvalidRequestException

  • IoTDataPlane.Client.exceptions.ForbiddenException

  • IoTDataPlane.Client.exceptions.ResourceNotFoundException

  • IoTDataPlane.Client.exceptions.ThrottlingException

  • IoTDataPlane.Client.exceptions.InternalFailureException