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[ aws . sns ]



Returns all of the properties of a topic. Topic properties returned might differ based on the authorization of the user.

See also: AWS API Documentation


--topic-arn <value>
[--cli-input-json <value>]
[--generate-cli-skeleton <value>]
[--endpoint-url <value>]
[--output <value>]
[--query <value>]
[--profile <value>]
[--region <value>]
[--version <value>]
[--color <value>]
[--ca-bundle <value>]
[--cli-read-timeout <value>]
[--cli-connect-timeout <value>]


--topic-arn (string)

The ARN of the topic whose properties you want to get.

--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.

Global Options

--debug (boolean)

Turn on debug logging.

--endpoint-url (string)

Override command's default URL with the given URL.

--no-verify-ssl (boolean)

By default, the AWS CLI uses SSL when communicating with AWS services. For each SSL connection, the AWS CLI will verify SSL certificates. This option overrides the default behavior of verifying SSL certificates.

--no-paginate (boolean)

Disable automatic pagination.

--output (string)

The formatting style for command output.

  • json
  • text
  • table

--query (string)

A JMESPath query to use in filtering the response data.

--profile (string)

Use a specific profile from your credential file.

--region (string)

The region to use. Overrides config/env settings.

--version (string)

Display the version of this tool.

--color (string)

Turn on/off color output.

  • on
  • off
  • auto

--no-sign-request (boolean)

Do not sign requests. Credentials will not be loaded if this argument is provided.

--ca-bundle (string)

The CA certificate bundle to use when verifying SSL certificates. Overrides config/env settings.

--cli-read-timeout (int)

The maximum socket read time in seconds. If the value is set to 0, the socket read will be blocking and not timeout. The default value is 60 seconds.

--cli-connect-timeout (int)

The maximum socket connect time in seconds. If the value is set to 0, the socket connect will be blocking and not timeout. The default value is 60 seconds.



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 retrieve the attributes of a topic

The following get-topic-attributes example displays the attributes for the specified topic.

aws sns get-topic-attributes \
    --topic-arn "arn:aws:sns:us-west-2:123456789012:my-topic"


    "Attributes": {
        "SubscriptionsConfirmed": "1",
        "DisplayName": "my-topic",
        "SubscriptionsDeleted": "0",
        "EffectiveDeliveryPolicy": "{\"http\":{\"defaultHealthyRetryPolicy\":{\"minDelayTarget\":20,\"maxDelayTarget\":20,\"numRetries\":3,\"numMaxDelayRetries\":0,\"numNoDelayRetries\":0,\"numMinDelayRetries\":0,\"backoffFunction\":\"linear\"},\"disableSubscriptionOverrides\":false}}",
        "Owner": "123456789012",
        "Policy": "{\"Version\":\"2008-10-17\",\"Id\":\"__default_policy_ID\",\"Statement\":[{\"Sid\":\"__default_statement_ID\",\"Effect\":\"Allow\",\"Principal\":{\"AWS\":\"*\"},\"Action\":[\"SNS:Subscribe\",\"SNS:ListSubscriptionsByTopic\",\"SNS:DeleteTopic\",\"SNS:GetTopicAttributes\",\"SNS:Publish\",\"SNS:RemovePermission\",\"SNS:AddPermission\",\"SNS:SetTopicAttributes\"],\"Resource\":\"arn:aws:sns:us-west-2:123456789012:my-topic\",\"Condition\":{\"StringEquals\":{\"AWS:SourceOwner\":\"0123456789012\"}}}]}",
        "TopicArn": "arn:aws:sns:us-west-2:123456789012:my-topic",
        "SubscriptionsPending": "0"


Attributes -> (map)

A map of the topic's attributes. Attributes in this map include the following:

  • DeliveryPolicy – The JSON serialization of the topic's delivery policy.

  • DisplayName – The human-readable name used in the From field for notifications to email and email-json endpoints.

  • EffectiveDeliveryPolicy – The JSON serialization of the effective delivery policy, taking system defaults into account.

  • Owner – The Amazon Web Services account ID of the topic's owner.

  • Policy – The JSON serialization of the topic's access control policy.

  • SignatureVersion – The signature version corresponds to the hashing algorithm used while creating the signature of the notifications, subscription confirmations, or unsubscribe confirmation messages sent by Amazon SNS.

    • By default, SignatureVersion is set to 1 . The signature is a Base64-encoded SHA1withRSA signature.
    • When you set SignatureVersion to 2 . Amazon SNS uses a Base64-encoded SHA256withRSA signature.


    If the API response does not include the SignatureVersion attribute, it means that the SignatureVersion for the topic has value 1 .

  • SubscriptionsConfirmed – The number of confirmed subscriptions for the topic.

  • SubscriptionsDeleted – The number of deleted subscriptions for the topic.

  • SubscriptionsPending – The number of subscriptions pending confirmation for the topic.

  • TopicArn – The topic's ARN.

  • TracingConfig – Tracing mode of an Amazon SNS topic. By default TracingConfig is set to PassThrough , and the topic passes through the tracing header it receives from an Amazon SNS publisher to its subscriptions. If set to Active , Amazon SNS will vend X-Ray segment data to topic owner account if the sampled flag in the tracing header is true. This is only supported on standard topics.

The following attribute applies only to server-side-encryption :

  • KmsMasterKeyId - The ID of an Amazon Web Services managed customer master key (CMK) for Amazon SNS or a custom CMK. For more information, see Key Terms . For more examples, see KeyId in the Key Management Service API Reference .

The following attributes apply only to FIFO topics :

  • FifoTopic – When this is set to true , a FIFO topic is created.
  • ContentBasedDeduplication – Enables content-based deduplication for FIFO topics.
    • By default, ContentBasedDeduplication is set to false . If you create a FIFO topic and this attribute is false , you must specify a value for the MessageDeduplicationId parameter for the Publish action.
    • When you set ContentBasedDeduplication to true , Amazon SNS uses a SHA-256 hash to generate the MessageDeduplicationId using the body of the message (but not the attributes of the message). (Optional) To override the generated value, you can specify a value for the MessageDeduplicationId parameter for the Publish action.

key -> (string)

value -> (string)