CreateTopic -

CreateTopic

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 Creating an Amazon SNS topic in the Amazon SNS Developer Guide. 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.

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

Attributes
Attributes.entry.N.key (key)
Attributes.entry.N.value (value)

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 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.

Type: String to string map

Required: No

Name

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.

Type: String

Required: Yes

Tags.member.N

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.

Type: Array of Tag objects

Required: No

Response Elements

The following element is returned by the service.

TopicArn

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

Type: String

Errors

For information about the errors that are common to all actions, see Common Errors.

AuthorizationError

Indicates that the user has been denied access to the requested resource.

HTTP Status Code: 403

ConcurrentAccess

Can't perform multiple operations on a tag simultaneously. Perform the operations sequentially.

HTTP Status Code: 400

InternalError

Indicates an internal service error.

HTTP Status Code: 500

InvalidParameter

Indicates that a request parameter does not comply with the associated constraints.

HTTP Status Code: 400

InvalidSecurity

The credential signature isn't valid. You must use an HTTPS endpoint and sign your request using Signature Version 4.

HTTP Status Code: 403

StaleTag

A tag has been added to a resource with the same ARN as a deleted resource. Wait a short while and then retry the operation.

HTTP Status Code: 400

TagLimitExceeded

Can't add more than 50 tags to a topic.

HTTP Status Code: 400

TagPolicy

The request doesn't comply with the IAM tag policy. Correct your request and then retry it.

HTTP Status Code: 400

TopicLimitExceeded

Indicates that the customer already owns the maximum allowed number of topics.

HTTP Status Code: 403

Examples

The structure of AUTHPARAMS depends on the signature of the API request. For more information, see Examples of the complete Signature Version 4 signing process (Python) in the AWS General Reference.

Example

This example illustrates one usage of CreateTopic.

Sample Request

https://sns.us-east-2.amazonaws.com/?Action=CreateTopic &Name=My-Topic &Version=2010-03-31 &AUTHPARAMS

Sample Response

<CreateTopicResponse xmlns="https://sns.amazonaws.com/doc/2010-03-31/"> <CreateTopicResult> <TopicArn>arn:aws:sns:us-east-2:123456789012:My-Topic</TopicArn> </CreateTopicResult> <ResponseMetadata> <RequestId>a8dec8b3-33a4-11df-8963-01868b7c937a</RequestId> </ResponseMetadata> </CreateTopicResponse>

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: