Class: Aws::SNS::Topic

Inherits:

Object

Object
Aws::SNS::Topic

show all

Extended by:: Deprecations

Defined in:: lib/aws-sdk-sns/topic.rb

Defined Under Namespace

Classes: Collection

Read-Only Attributes collapse

#arn ⇒ String
#attributes ⇒ Hash<String,String>

A map of the topic’s attributes.

Actions collapse

Associations collapse

#identifiers ⇒ Object deprecated private Deprecated.
#subscriptions(options = {}) ⇒ Subscription::Collection

Instance Method Summary collapse

#client ⇒ Client
#data ⇒ Types::GetTopicAttributesResponse

Returns the data for this Topic.
#data_loaded? ⇒ Boolean

Returns ‘true` if this resource is loaded.
#initialize(*args) ⇒ Topic constructor

A new instance of Topic.
#load ⇒ self (also: #reload)

Loads, or reloads #data for the current Topic.

Constructor Details

#initialize(arn, options = {}) ⇒ `Topic` #initialize(options = {}) ⇒ `Topic`

Returns a new instance of Topic.

Overloads:

#initialize(arn, options = {}) ⇒ Topic
Parameters:
- arn (String)
Options Hash (options):
- :client (Client)
#initialize(options = {}) ⇒ Topic
Options Hash (options):
- :arn (required, String)
- :client (Client)

# File 'lib/aws-sdk-sns/topic.rb', line 22

def initialize(*args)
  options = Hash === args.last ? args.pop.dup : {}
  @arn = extract_arn(args, options)
  @data = options.delete(:data)
  @client = options.delete(:client) || Client.new(options)
  @waiter_block_warned = false
end

Instance Method Details

#add_permission(options = {}) ⇒ `EmptyStructure`

Examples:

Request syntax with placeholder values


topic.add_permission({
  label: "label", # required
  aws_account_id: ["delegate"], # required
  action_name: ["action"], # required
})

Parameters:

options (Hash) (defaults to: {}) —

({})

Options Hash (options):

:label (required, String) —

A unique identifier for the new policy statement.
:aws_account_id (required, Array<String>) —

The Amazon Web Services account IDs of the users (principals) who will be given access to the specified actions. The users must have Amazon Web Services account, but do not need to be signed up for this service.
:action_name (required, Array<String>) —

The action you want to allow for the specified principal(s).

Valid values: Any Amazon SNS action name, for example ‘Publish`.

Returns:

(EmptyStructure)

# File 'lib/aws-sdk-sns/topic.rb', line 188

def add_permission(options = {})
  options = options.merge(topic_arn: @arn)
  resp = Aws::Plugins::UserAgent.metric('RESOURCE_MODEL') do
    @client.add_permission(options)
  end
  resp.data
end

#arn ⇒ `String`

Returns:

(String)



33
34
35

# File 'lib/aws-sdk-sns/topic.rb', line 33

def arn
  @arn
end

#attributes ⇒ `Hash<String,String>`

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.
  
  <note markdown=“1”> If the API response does not include the ‘SignatureVersion` attribute, it means that the `SignatureVersion` for the topic has value 1.
```
</note>
```
‘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][5
  
  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.

[1]: docs.aws.amazon.com/sns/latest/dg/sns-server-side-encryption.html [2]: docs.aws.amazon.com/sns/latest/dg/sns-server-side-encryption.html#sse-key-terms [3]: docs.aws.amazon.com/kms/latest/APIReference/API_DescribeKey.html#API_DescribeKey_RequestParameters [4]: docs.aws.amazon.com/sns/latest/dg/sns-fifo-topics.html [5]: docs.aws.amazon.com/sns/latest/api/API_Publish.html

Returns:

(Hash<String,String>)



125
126
127

# File 'lib/aws-sdk-sns/topic.rb', line 125

def attributes
  data[:attributes]
end

#client ⇒ `Client`

Returns:

(Client)



132
133
134

# File 'lib/aws-sdk-sns/topic.rb', line 132

def client
  @client
end

#confirm_subscription(options = {}) ⇒ `Subscription`

Examples:

Request syntax with placeholder values


subscription = topic.confirm_subscription({
  token: "token", # required
  authenticate_on_unsubscribe: "authenticateOnUnsubscribe",
})

Parameters:

options (Hash) (defaults to: {}) —

({})

Options Hash (options):

:token (required, String) —

Short-lived token sent to an endpoint during the ‘Subscribe` action.
:authenticate_on_unsubscribe (String) —

Disallows unauthenticated unsubscribes of the subscription. If the value of this parameter is ‘true` and the request has an Amazon Web Services signature, then only the topic owner and the subscription owner can unsubscribe the endpoint. The unsubscribe action requires Amazon Web Services authentication.

Returns:

(Subscription)

# File 'lib/aws-sdk-sns/topic.rb', line 212

def confirm_subscription(options = {})
  options = options.merge(topic_arn: @arn)
  resp = Aws::Plugins::UserAgent.metric('RESOURCE_MODEL') do
    @client.confirm_subscription(options)
  end
  Subscription.new(
    arn: resp.data.subscription_arn,
    client: @client
  )
end

#data ⇒ `Types::GetTopicAttributesResponse`

Returns the data for this Aws::SNS::Topic. Calls Client#get_topic_attributes if #data_loaded? is ‘false`.

Returns:

(Types::GetTopicAttributesResponse) —

Returns the data for this Aws::SNS::Topic. Calls Client#get_topic_attributes if #data_loaded? is ‘false`.

# File 'lib/aws-sdk-sns/topic.rb', line 154

def data
  load unless @data
  @data
end

#data_loaded? ⇒ `Boolean`

Returns ‘true` if this resource is loaded. Accessing attributes or #data on an unloaded resource will trigger a call to #load.

Returns:

(Boolean) —

Returns ‘true` if this resource is loaded. Accessing attributes or #data on an unloaded resource will trigger a call to #load.



162
163
164

# File 'lib/aws-sdk-sns/topic.rb', line 162

def data_loaded?
  !!@data
end

#delete(options = {}) ⇒ `EmptyStructure`

Examples:

Request syntax with placeholder values


topic.delete()

Parameters:

options (Hash) (defaults to: {}) —

({})

Returns:

(EmptyStructure)

# File 'lib/aws-sdk-sns/topic.rb', line 228

def delete(options = {})
  options = options.merge(topic_arn: @arn)
  resp = Aws::Plugins::UserAgent.metric('RESOURCE_MODEL') do
    @client.delete_topic(options)
  end
  resp.data
end

#identifiers ⇒ `Object`

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Deprecated.



752
753
754

# File 'lib/aws-sdk-sns/topic.rb', line 752

def identifiers
  { arn: @arn }
end

#load ⇒ `self` Also known as: reload

Loads, or reloads #data for the current Aws::SNS::Topic. Returns ‘self` making it possible to chain methods.

topic.reload.data

Returns:

(self)

# File 'lib/aws-sdk-sns/topic.rb', line 142

def load
  resp = Aws::Plugins::UserAgent.metric('RESOURCE_MODEL') do
    @client.get_topic_attributes(topic_arn: @arn)
  end
  @data = resp.data
  self
end

#publish(options = {}) ⇒ `Types::PublishResponse`

Examples:

Request syntax with placeholder values


topic.publish({
  target_arn: "String",
  phone_number: "PhoneNumber",
  message: "message", # required
  subject: "subject",
  message_structure: "messageStructure",
  message_attributes: {
    "String" => {
      data_type: "String", # required
      string_value: "String",
      binary_value: "data",
    },
  },
  message_deduplication_id: "String",
  message_group_id: "String",
})

Parameters:

options (Hash) (defaults to: {}) —

({})

Options Hash (options):

:target_arn (String) —

If you don’t specify a value for the ‘TargetArn` parameter, you must specify a value for the `PhoneNumber` or `TopicArn` parameters.
:phone_number (String) —

The phone number to which you want to deliver an SMS message. Use E.164 format.

If you don’t specify a value for the ‘PhoneNumber` parameter, you must specify a value for the `TargetArn` or `TopicArn` parameters.
:message (required, String) —
The message you want to send.

If you are publishing to a topic and you want to send the same message to all transport protocols, include the text of the message as a String value. If you want to send different messages for each transport protocol, set the value of the ‘MessageStructure` parameter to `json` and use a JSON object for the `Message` parameter.

Constraints:
- With the exception of SMS, messages must be UTF-8 encoded strings and at most 256 KB in size (262,144 bytes, not 262,144 characters).
- For SMS, each message can contain up to 140 characters. This character limit depends on the encoding schema. For example, an SMS message can contain 160 GSM characters, 140 ASCII characters, or 70 UCS-2 characters.
  
  If you publish a message that exceeds this size limit, Amazon SNS sends the message as multiple messages, each fitting within the size limit. Messages aren’t truncated mid-word but are cut off at whole-word boundaries.
  
  The total size limit for a single SMS ‘Publish` action is 1,600 characters.
JSON-specific constraints:
- Keys in the JSON object that correspond to supported transport protocols must have simple JSON string values.
- The values will be parsed (unescaped) before they are used in outgoing messages.
- Outbound notifications are JSON encoded (meaning that the characters will be reescaped for sending).
- Values have a minimum length of 0 (the empty string, “”, is allowed).
- Values have a maximum length bounded by the overall message size (so, including multiple protocols may limit message sizes).
- Non-string values will cause the key to be ignored.
- Keys that do not correspond to supported transport protocols are ignored.
- Duplicate keys are not allowed.
- Failure to parse or validate any key or value in the message will cause the ‘Publish` call to return an error (no partial delivery).
:subject (String) —

Optional parameter to be used as the “Subject” line when the message is delivered to email endpoints. This field will also be included, if present, in the standard JSON messages delivered to other endpoints.

Constraints: Subjects must be UTF-8 text with no line breaks or control characters, and less than 100 characters long.
:message_structure (String) —
Set ‘MessageStructure` to `json` if you want to send a different message for each protocol. For example, using one publish action, you can send a short message to your SMS subscribers and a longer message to your email subscribers. If you set `MessageStructure` to `json`, the value of the `Message` parameter must:
- be a syntactically valid JSON object; and
- contain at least a top-level JSON key of “default” with a value that is a string.
You can define other top-level keys that define the message you want to send to a specific transport protocol (e.g., “http”).

Valid value: ‘json`
:message_attributes (Hash<String,Types::MessageAttributeValue>) —

Message attributes for Publish action.
:message_deduplication_id (String) —

This parameter applies only to FIFO (first-in-first-out) topics. The ‘MessageDeduplicationId` can contain up to 128 alphanumeric characters `(a-z, A-Z, 0-9)` and punctuation “ (!“#$%&’()*+,-./:;<=>?@[]^_`{|}~) “.

Every message must have a unique ‘MessageDeduplicationId`, which is a token used for deduplication of sent messages. If a message with a particular `MessageDeduplicationId` is sent successfully, any message sent with the same `MessageDeduplicationId` during the 5-minute deduplication interval is treated as a duplicate.

If the topic has ‘ContentBasedDeduplication` set, the system generates a `MessageDeduplicationId` based on the contents of the message. Your `MessageDeduplicationId` overrides the generated one.
:message_group_id (String) —

This parameter applies only to FIFO (first-in-first-out) topics. The ‘MessageGroupId` can contain up to 128 alphanumeric characters `(a-z, A-Z, 0-9)` and punctuation “ (!“#$%&’()*+,-./:;<=>?@[]^_`{|}~) “.

The ‘MessageGroupId` is a tag that specifies that a message belongs to a specific message group. Messages that belong to the same message group are processed in a FIFO manner (however, messages in different message groups might be processed out of order). Every message must include a `MessageGroupId`.

Returns:

(Types::PublishResponse)

# File 'lib/aws-sdk-sns/topic.rb', line 370

def publish(options = {})
  options = options.merge(topic_arn: @arn)
  resp = Aws::Plugins::UserAgent.metric('RESOURCE_MODEL') do
    @client.publish(options)
  end
  resp.data
end

#remove_permission(options = {}) ⇒ `EmptyStructure`

Examples:

Request syntax with placeholder values


topic.remove_permission({
  label: "label", # required
})

Parameters:

options (Hash) (defaults to: {}) —

({})

Options Hash (options):

:label (required, String) —

The unique label of the statement you want to remove.

Returns:

(EmptyStructure)

# File 'lib/aws-sdk-sns/topic.rb', line 387

def remove_permission(options = {})
  options = options.merge(topic_arn: @arn)
  resp = Aws::Plugins::UserAgent.metric('RESOURCE_MODEL') do
    @client.remove_permission(options)
  end
  resp.data
end

#set_attributes(options = {}) ⇒ `EmptyStructure`

Examples:

Request syntax with placeholder values


topic.set_attributes({
  attribute_name: "attributeName", # required
  attribute_value: "attributeValue",
})

Parameters:

options (Hash) (defaults to: {}) —

({})

Options Hash (options):

:attribute_name (required, String) —
A map of attributes with their corresponding values.

The following lists the names, descriptions, and values of the special request parameters that the ‘SetTopicAttributes` action uses:
- ‘ApplicationSuccessFeedbackRoleArn` – Indicates failed message delivery status for an Amazon SNS topic that is subscribed to a platform application endpoint.
- ‘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.
- ‘Policy` – The policy that defines who can access your topic. By default, only the topic owner can publish or subscribe to the topic.
- ‘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.
- HTTP
  - ‘HTTPSuccessFeedbackRoleArn` – Indicates successful message delivery status for an Amazon SNS topic that is subscribed to an HTTP endpoint.
  - ‘HTTPSuccessFeedbackSampleRate` – Indicates percentage of successful messages to sample for an Amazon SNS topic that is subscribed to an HTTP endpoint.
  - ‘HTTPFailureFeedbackRoleArn` – Indicates failed message delivery status for an Amazon SNS topic that is subscribed to an HTTP endpoint.
- Amazon Kinesis Data Firehose
  - ‘FirehoseSuccessFeedbackRoleArn` – Indicates successful message delivery status for an Amazon SNS topic that is subscribed to an Amazon Kinesis Data Firehose endpoint.
  - ‘FirehoseSuccessFeedbackSampleRate` – Indicates percentage of successful messages to sample for an Amazon SNS topic that is subscribed to an Amazon Kinesis Data Firehose endpoint.
  - ‘FirehoseFailureFeedbackRoleArn` – Indicates failed message delivery status for an Amazon SNS topic that is subscribed to an Amazon Kinesis Data Firehose endpoint.
- Lambda
  - ‘LambdaSuccessFeedbackRoleArn` – Indicates successful message delivery status for an Amazon SNS topic that is subscribed to an Lambda endpoint.
  - ‘LambdaSuccessFeedbackSampleRate` – Indicates percentage of successful messages to sample for an Amazon SNS topic that is subscribed to an Lambda endpoint.
  - ‘LambdaFailureFeedbackRoleArn` – Indicates failed message delivery status for an Amazon SNS topic that is subscribed to an Lambda endpoint.
- Platform application endpoint
  - ‘ApplicationSuccessFeedbackRoleArn` – Indicates successful message delivery status for an Amazon SNS topic that is subscribed to an Amazon Web Services application endpoint.
  - ‘ApplicationSuccessFeedbackSampleRate` – Indicates percentage of successful messages to sample for an Amazon SNS topic that is subscribed to an Amazon Web Services application endpoint.
  - ‘ApplicationFailureFeedbackRoleArn` – Indicates failed message delivery status for an Amazon SNS topic that is subscribed to an Amazon Web Services application endpoint.
  <note markdown=“1”> In addition to being able to configure topic attributes for message delivery status of notification messages sent to Amazon SNS application endpoints, you can also configure application attributes for the delivery status of push notification messages sent to push notification services.
```
For example, For more information, see [Using Amazon SNS Application
```
  Attributes for Message Delivery Status].
```
</note>
```
- Amazon SQS
  - ‘SQSSuccessFeedbackRoleArn` – Indicates successful message delivery status for an Amazon SNS topic that is subscribed to an Amazon SQS endpoint.
  - ‘SQSSuccessFeedbackSampleRate` – Indicates percentage of successful messages to sample for an Amazon SNS topic that is subscribed to an Amazon SQS endpoint.
  - ‘SQSFailureFeedbackRoleArn` – Indicates failed message delivery status for an Amazon SNS topic that is subscribed to an Amazon SQS endpoint.
<note markdown=“1”> The <ENDPOINT>SuccessFeedbackRoleArn and <ENDPOINT>FailureFeedbackRoleArn attributes are used to give Amazon SNS write access to use CloudWatch Logs on your behalf. The <ENDPOINT>SuccessFeedbackSampleRate attribute is for specifying the sample rate percentage (0-100) of successfully delivered messages. After you configure the <ENDPOINT>FailureFeedbackRoleArn attribute, then all failed message deliveries generate CloudWatch Logs.
```
</note>
```
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*.
- ‘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 following attribute applies only to [FIFO topics]:
- ‘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][6
    
    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.
[1]: docs.aws.amazon.com/sns/latest/dg/sns-msg-status.html [2]: docs.aws.amazon.com/sns/latest/dg/sns-server-side-encryption.html [3]: docs.aws.amazon.com/sns/latest/dg/sns-server-side-encryption.html#sse-key-terms [4]: docs.aws.amazon.com/kms/latest/APIReference/API_DescribeKey.html#API_DescribeKey_RequestParameters [5]: docs.aws.amazon.com/sns/latest/dg/sns-fifo-topics.html [6]: docs.aws.amazon.com/sns/latest/api/API_Publish.html
:attribute_value (String) —

The new value for the attribute.

Returns:

(EmptyStructure)

# File 'lib/aws-sdk-sns/topic.rb', line 558

def set_attributes(options = {})
  options = options.merge(topic_arn: @arn)
  resp = Aws::Plugins::UserAgent.metric('RESOURCE_MODEL') do
    @client.set_topic_attributes(options)
  end
  resp.data
end

Examples:

Request syntax with placeholder values


subscription = topic.subscribe({
  protocol: "protocol", # required
  endpoint: "endpoint",
  attributes: {
    "attributeName" => "attributeValue",
  },
  return_subscription_arn: false,
})

Parameters:

options (Hash) (defaults to: {}) —

({})

Options Hash (options):

:protocol (required, String) —
The protocol that you want to use. Supported protocols include:
- ‘http` – delivery of JSON-encoded message via HTTP POST
- ‘https` – delivery of JSON-encoded message via HTTPS POST
- ‘email` – delivery of message via SMTP
- ‘email-json` – delivery of JSON-encoded message via SMTP
- ‘sms` – delivery of message via SMS
- ‘sqs` – delivery of JSON-encoded message to an Amazon SQS queue
- ‘application` – delivery of JSON-encoded message to an EndpointArn for a mobile app and device
- ‘lambda` – delivery of JSON-encoded message to an Lambda function
- ‘firehose` – delivery of JSON-encoded message to an Amazon Kinesis Data Firehose delivery stream.
:endpoint (String) —
The endpoint that you want to receive notifications. Endpoints vary by protocol:
- For the ‘http` protocol, the (public) endpoint is a URL beginning with `http://`.
- For the ‘https` protocol, the (public) endpoint is a URL beginning with `https://`.
- For the ‘email` protocol, the endpoint is an email address.
- For the ‘email-json` protocol, the endpoint is an email address.
- For the ‘sms` protocol, the endpoint is a phone number of an SMS-enabled device.
- For the ‘sqs` protocol, the endpoint is the ARN of an Amazon SQS queue.
- For the ‘application` protocol, the endpoint is the EndpointArn of a mobile app and device.
- For the ‘lambda` protocol, the endpoint is the ARN of an Lambda function.
- For the ‘firehose` protocol, the endpoint is the ARN of an Amazon Kinesis Data Firehose delivery stream.
:attributes (Hash<String,String>) —
A map of attributes with their corresponding values.

The following lists the names, descriptions, and values of the special request parameters that the ‘Subscribe` action uses:
- ‘DeliveryPolicy` – The policy that defines how Amazon SNS retries failed deliveries to HTTP/S endpoints.
- ‘FilterPolicy` – The simple JSON object that lets your subscriber receive only a subset of messages, rather than receiving every message published to the topic.
- ‘FilterPolicyScope` – This attribute lets you choose the filtering scope by using one of the following string value types:
  - ‘MessageAttributes` (default) – The filter is applied on the message attributes.
  - ‘MessageBody` – The filter is applied on the message body.
- ‘RawMessageDelivery` – When set to `true`, enables raw message delivery to Amazon SQS or HTTP/S endpoints. This eliminates the need for the endpoints to process JSON formatting, which is otherwise created for Amazon SNS metadata.
- ‘RedrivePolicy` – When specified, sends undeliverable messages to the specified Amazon SQS dead-letter queue. Messages that can’t be delivered due to client errors (for example, when the subscribed endpoint is unreachable) or server errors (for example, when the service that powers the subscribed endpoint becomes unavailable) are held in the dead-letter queue for further analysis or reprocessing.
The following attribute applies only to Amazon Data Firehose delivery stream subscriptions:
- ‘SubscriptionRoleArn` – The ARN of the IAM role that has the following:
  - Permission to write to the Firehose delivery stream
  - Amazon SNS listed as a trusted entity
  Specifying a valid ARN for this attribute is required for Firehose delivery stream subscriptions. For more information, see [Fanout to Firehose delivery streams] in the *Amazon SNS Developer Guide*.
The following attributes apply only to [FIFO topics]:
- ‘ReplayPolicy` – Adds or updates an inline policy document for a subscription to replay messages stored in the specified Amazon SNS topic.
- ‘ReplayStatus` – Retrieves the status of the subscription message replay, which can be one of the following:
  - ‘Completed` – The replay has successfully redelivered all messages, and is now delivering newly published messages. If an ending point was specified in the `ReplayPolicy` then the subscription will no longer receive newly published messages.
  - ‘In progress` – The replay is currently replaying the selected messages.
  - ‘Failed` – The replay was unable to complete.
  - ‘Pending` – The default state while the replay initiates.
[1]: docs.aws.amazon.com/sns/latest/dg/sns-firehose-as-subscriber.html [2]: docs.aws.amazon.com/sns/latest/dg/sns-fifo-topics.html
:return_subscription_arn (Boolean) —

Sets whether the response from the ‘Subscribe` request includes the subscription ARN, even if the subscription is not yet confirmed.

If you set this parameter to ‘true`, the response includes the ARN in all cases, even if the subscription is not yet confirmed. In addition to the ARN for confirmed subscriptions, the response also includes the `pending subscription` ARN value for subscriptions that aren’t yet confirmed. A subscription becomes confirmed when the subscriber calls the ‘ConfirmSubscription` action with a confirmation token.

The default value is ‘false`.

Returns:

(Subscription)

# File 'lib/aws-sdk-sns/topic.rb', line 712

def subscribe(options = {})
  options = options.merge(topic_arn: @arn)
  resp = Aws::Plugins::UserAgent.metric('RESOURCE_MODEL') do
    @client.subscribe(options)
  end
  Subscription.new(
    arn: resp.data.subscription_arn,
    client: @client
  )
end

#subscriptions(options = {}) ⇒ `Subscription::Collection`

Examples:

Request syntax with placeholder values


topic.subscriptions()

Parameters:

options (Hash) (defaults to: {}) —

({})

Returns:

(Subscription::Collection)

# File 'lib/aws-sdk-sns/topic.rb', line 730

def subscriptions(options = {})
  batches = Enumerator.new do |y|
    options = options.merge(topic_arn: @arn)
    resp = Aws::Plugins::UserAgent.metric('RESOURCE_MODEL') do
      @client.list_subscriptions_by_topic(options)
    end
    resp.each_page do |page|
      batch = []
      page.data.subscriptions.each do |s|
        batch << Subscription.new(
          arn: s.subscription_arn,
          client: @client
        )
      end
      y.yield(batch)
    end
  end
  Subscription::Collection.new(batches)
end

Class: Aws::SNS::Topic

Defined Under Namespace

Read-Only Attributes collapse

Actions collapse

Associations collapse

Instance Method Summary collapse

Constructor Details

#initialize(arn, options = {}) ⇒ Topic #initialize(options = {}) ⇒ Topic

Instance Method Details

#add_permission(options = {}) ⇒ EmptyStructure

Examples:

Request syntax with placeholder values

#arn ⇒ String

#attributes ⇒ Hash<String,String>

#client ⇒ Client

#confirm_subscription(options = {}) ⇒ Subscription

Examples:

Request syntax with placeholder values

#data ⇒ Types::GetTopicAttributesResponse

#data_loaded? ⇒ Boolean

#delete(options = {}) ⇒ EmptyStructure

Examples:

Request syntax with placeholder values

#identifiers ⇒ Object

#load ⇒ self Also known as: reload

#publish(options = {}) ⇒ Types::PublishResponse

Examples:

Request syntax with placeholder values

#remove_permission(options = {}) ⇒ EmptyStructure

Examples:

Request syntax with placeholder values

#set_attributes(options = {}) ⇒ EmptyStructure

Examples:

Request syntax with placeholder values

#subscribe(options = {}) ⇒ Subscription

Examples:

Request syntax with placeholder values

#subscriptions(options = {}) ⇒ Subscription::Collection

Examples:

Request syntax with placeholder values

#initialize(arn, options = {}) ⇒ `Topic` #initialize(options = {}) ⇒ `Topic`

#add_permission(options = {}) ⇒ `EmptyStructure`

#arn ⇒ `String`

#attributes ⇒ `Hash<String,String>`

#client ⇒ `Client`

#confirm_subscription(options = {}) ⇒ `Subscription`

#data ⇒ `Types::GetTopicAttributesResponse`

#data_loaded? ⇒ `Boolean`

#delete(options = {}) ⇒ `EmptyStructure`

#identifiers ⇒ `Object`

#load ⇒ `self` Also known as: reload

#publish(options = {}) ⇒ `Types::PublishResponse`

#remove_permission(options = {}) ⇒ `EmptyStructure`

#set_attributes(options = {}) ⇒ `EmptyStructure`

#subscribe(options = {}) ⇒ `Subscription`

#subscriptions(options = {}) ⇒ `Subscription::Collection`