create-topic¶

Description¶

Creates a topic to which notifications can be published. Users can create at most 100,000 standard topics (at most 1,000 FIFO topics). For more information, see https://aws.amazon.com/sns . This action is idempotent, so if the requester already owns a topic with the specified name, that topic’s ARN is returned without creating a new topic.

Synopsis¶

  create-topic
--name <value>
[--attributes <value>]
[--tags <value>]
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]
[--cli-auto-prompt <value>]

Options¶

--name (string)

The name of the topic you want to create.

Constraints: Topic names must be made up of only uppercase and lowercase ASCII letters, numbers, underscores, and hyphens, and must be between 1 and 256 characters long.

For a FIFO (first-in-first-out) topic, the name must end with the .fifo suffix.

--attributes (map)

A map of attributes with their corresponding values.

The following lists the names, descriptions, and values of the special request parameters that the CreateTopic action uses:

DeliveryPolicy – The policy that defines how Amazon SNS retries failed deliveries to HTTP/S endpoints.

DisplayName – The display name to use for a topic with SMS subscriptions.

FifoTopic – Set to true to create a FIFO topic.

Policy – The policy that defines who can access your topic. By default, only the topic owner can publish or subscribe to the topic.

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

KmsMasterKeyId – The ID of an AWS-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 AWS Key Management Service API Reference .

The following attribute applies only to FIFO topics:

ContentBasedDeduplication – Enables content-based deduplication. Amazon SNS uses a SHA-256 hash to generate the MessageDeduplicationId using the body of the message (but not the attributes of the message).

When ContentBasedDeduplication is in effect, messages with identical content sent within the deduplication interval are treated as duplicates and only one copy of the message is delivered.

If the queue has ContentBasedDeduplication set, your MessageDeduplicationId overrides the generated one.

key -> (string)

value -> (string)

Shorthand Syntax:

KeyName1=string,KeyName2=string

JSON Syntax:

{"string": "string"
  ...}

--tags (list)

The list of tags to add to a new topic.

Note

To be able to tag a topic on creation, you must have the sns:CreateTopic and sns:TagResource permissions.

(structure)

The list of tags to be added to the specified topic.

Key -> (string)

The required key portion of the tag.

Value -> (string)

The optional value portion of the tag.

Shorthand Syntax:

Key=string,Value=string ...

JSON Syntax:

[
  {
    "Key": "string",
    "Value": "string"
  }
  ...
]

--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.

--cli-auto-prompt (boolean) Automatically prompt for CLI input parameters.

See ‘aws help’ for descriptions of global parameters.

Examples¶

To create an SNS topic

The following create-topic example creates an SNS topic named my-topic.

aws sns create-topic \
    --name my-topic

Output:

{
    "ResponseMetadata": {
        "RequestId": "1469e8d7-1642-564e-b85d-a19b4b341f83"
    },
    "TopicArn": "arn:aws:sns:us-west-2:123456789012:my-topic"
}

For more information, see Using the AWS Command Line Interface with Amazon SQS and Amazon SNS in the AWS Command Line Interface User Guide.

Output¶

TopicArn -> (string)

The Amazon Resource Name (ARN) assigned to the created topic.

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