Class: Aws::SQS::Queue

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

# File 'gems/aws-sdk-sqs/lib/aws-sdk-sqs/queue.rb', line 22

def initialize(*args)
  options = Hash === args.last ? args.pop.dup : {}
  @url = extract_url(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


queue.add_permission({
  label: "String", # required
  aws_account_ids: ["String"], # required
  actions: ["String"], # required
})

Parameters:

options (Hash) (defaults to: {}) —
({})

Options Hash (options):

:label (required, String) —
The unique identification of the permission you're setting (for example, AliceSendMessage). Maximum 80 characters. Allowed characters include alphanumeric characters, hyphens (-), and underscores (_).
:aws_account_ids (required, Array<String>) —
The Amazon Web Services account numbers of the principals who are to receive permission. For information about locating the Amazon Web Services account identification, see Your Amazon Web Services Identifiers in the Amazon SQS Developer Guide.
:actions (required, Array<String>) —
The action the client wants to allow for the specified principal. Valid values: the name of any action or *.

For more information about these actions, see Overview of Managing Access Permissions to Your Amazon Simple Queue Service Resource in the Amazon SQS Developer Guide.

Specifying SendMessage, DeleteMessage, or ChangeMessageVisibility for ActionName.n also grants permissions for the corresponding batch versions of those actions: SendMessageBatch, DeleteMessageBatch, and ChangeMessageVisibilityBatch.

Returns:

(EmptyStructure)

# File 'gems/aws-sdk-sqs/lib/aws-sdk-sqs/queue.rb', line 126

def add_permission(options = {})
  options = options.merge(queue_url: @url)
  resp = Aws::Plugins::UserAgent.feature('resource') do
    @client.add_permission(options)
  end
  resp.data
end

#attributes ⇒ `Hash<String,String>`

A map of attributes to their respective values.

Returns:

(Hash<String,String>)



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# File 'gems/aws-sdk-sqs/lib/aws-sdk-sqs/queue.rb', line 39

def attributes
  data[:attributes]
end

#change_message_visibility_batch(options = {}) ⇒ `Types::ChangeMessageVisibilityBatchResult`

Examples:

Request syntax with placeholder values


queue.change_message_visibility_batch({
  entries: [ # required
    {
      id: "String", # required
      receipt_handle: "String", # required
      visibility_timeout: 1,
    },
  ],
})

Parameters:

options (Hash) (defaults to: {}) —
({})

Options Hash (options):

:entries (required, Array<Types::ChangeMessageVisibilityBatchRequestEntry>) —
Lists the receipt handles of the messages for which the visibility timeout must be changed.

Returns:

(Types::ChangeMessageVisibilityBatchResult)

# File 'gems/aws-sdk-sqs/lib/aws-sdk-sqs/queue.rb', line 150

def change_message_visibility_batch(options = {})
  options = options.merge(queue_url: @url)
  resp = Aws::Plugins::UserAgent.feature('resource') do
    @client.change_message_visibility_batch(options)
  end
  resp.data
end

#client ⇒ `Client`

Returns:

(Client)



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# File 'gems/aws-sdk-sqs/lib/aws-sdk-sqs/queue.rb', line 46

def client
  @client
end

#data ⇒ `Types::GetQueueAttributesResult`

Returns the data for this Aws::SQS::Queue. Calls Client#get_queue_attributes if #data_loaded? is false.

Returns:

(Types::GetQueueAttributesResult) —
Returns the data for this Aws::SQS::Queue. Calls Client#get_queue_attributes if #data_loaded? is false.

# File 'gems/aws-sdk-sqs/lib/aws-sdk-sqs/queue.rb', line 71

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.



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# File 'gems/aws-sdk-sqs/lib/aws-sdk-sqs/queue.rb', line 79

def data_loaded?
  !!@data
end

#dead_letter_source_queues(options = {}) ⇒ `Queue::Collection`

Examples:

Request syntax with placeholder values


queue.dead_letter_source_queues()

Parameters:

options (Hash) (defaults to: {}) —
({})

Returns:

(Queue::Collection)

# File 'gems/aws-sdk-sqs/lib/aws-sdk-sqs/queue.rb', line 835

def dead_letter_source_queues(options = {})
  batches = Enumerator.new do |y|
    options = options.merge(queue_url: @url)
    resp = Aws::Plugins::UserAgent.feature('resource') do
      @client.list_dead_letter_source_queues(options)
    end
    resp.each_page do |page|
      batch = []
      page.data.queue_urls.each do |q|
        batch << Queue.new(
          url: q,
          client: @client
        )
      end
      y.yield(batch)
    end
  end
  Queue::Collection.new(batches)
end

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

Examples:

Request syntax with placeholder values


queue.delete()

Parameters:

options (Hash) (defaults to: {}) —
({})

Returns:

(EmptyStructure)

# File 'gems/aws-sdk-sqs/lib/aws-sdk-sqs/queue.rb', line 163

def delete(options = {})
  options = options.merge(queue_url: @url)
  resp = Aws::Plugins::UserAgent.feature('resource') do
    @client.delete_queue(options)
  end
  resp.data
end

#delete_messages(options = {}) ⇒ `Types::DeleteMessageBatchResult`

Examples:

Request syntax with placeholder values


queue.delete_messages({
  entries: [ # required
    {
      id: "String", # required
      receipt_handle: "String", # required
    },
  ],
})

Parameters:

options (Hash) (defaults to: {}) —
({})

Options Hash (options):

:entries (required, Array<Types::DeleteMessageBatchRequestEntry>) —
Lists the receipt handles for the messages to be deleted.

Returns:

(Types::DeleteMessageBatchResult)

# File 'gems/aws-sdk-sqs/lib/aws-sdk-sqs/queue.rb', line 185

def delete_messages(options = {})
  options = options.merge(queue_url: @url)
  resp = Aws::Plugins::UserAgent.feature('resource') do
    @client.delete_message_batch(options)
  end
  resp.data
end

#load ⇒ `self` Also known as: reload

Loads, or reloads #data for the current Aws::SQS::Queue. Returns self making it possible to chain methods.

queue.reload.data

Returns:

(self)

# File 'gems/aws-sdk-sqs/lib/aws-sdk-sqs/queue.rb', line 56

def load
  resp = Aws::Plugins::UserAgent.feature('resource') do
    @client.get_queue_attributes(
    queue_url: @url,
    attribute_names: ["All"]
  )
  end
  @data = resp.data
  self
end

#message(receipt_handle) ⇒ `Message`

Parameters:

receipt_handle (String)

Returns:

(Message)

# File 'gems/aws-sdk-sqs/lib/aws-sdk-sqs/queue.rb', line 857

def message(receipt_handle)
  Message.new(
    queue_url: @url,
    receipt_handle: receipt_handle,
    client: @client
  )
end

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

Examples:

Request syntax with placeholder values


queue.purge()

Parameters:

options (Hash) (defaults to: {}) —
({})

Returns:

(EmptyStructure)

# File 'gems/aws-sdk-sqs/lib/aws-sdk-sqs/queue.rb', line 198

def purge(options = {})
  options = options.merge(queue_url: @url)
  resp = Aws::Plugins::UserAgent.feature('resource') do
    @client.purge_queue(options)
  end
  resp.data
end

#receive_messages(options = {}) ⇒ `Message::Collection`

Examples:

Request syntax with placeholder values


message = queue.receive_messages({
  attribute_names: ["All"], # accepts All, Policy, VisibilityTimeout, MaximumMessageSize, MessageRetentionPeriod, ApproximateNumberOfMessages, ApproximateNumberOfMessagesNotVisible, CreatedTimestamp, LastModifiedTimestamp, QueueArn, ApproximateNumberOfMessagesDelayed, DelaySeconds, ReceiveMessageWaitTimeSeconds, RedrivePolicy, FifoQueue, ContentBasedDeduplication, KmsMasterKeyId, KmsDataKeyReusePeriodSeconds, DeduplicationScope, FifoThroughputLimit, RedriveAllowPolicy, SqsManagedSseEnabled
  message_attribute_names: ["MessageAttributeName"],
  max_number_of_messages: 1,
  visibility_timeout: 1,
  wait_time_seconds: 1,
  receive_request_attempt_id: "String",
})

Parameters:

options (Hash) (defaults to: {}) —
({})

Options Hash (options):

:attribute_names (Array<String>) —
A list of attributes that need to be returned along with each message. These attributes include:
- All – Returns all values.
- ApproximateFirstReceiveTimestamp – Returns the time the message was first received from the queue (epoch time in milliseconds).
- ApproximateReceiveCount – Returns the number of times a message has been received across all queues but not deleted.
- AWSTraceHeader – Returns the X-Ray trace header string.
- SenderId
  - For a user, returns the user ID, for example ABCDEFGHI1JKLMNOPQ23R.
  - For an IAM role, returns the IAM role ID, for example ABCDE1F2GH3I4JK5LMNOP:i-a123b456.
- SentTimestamp – Returns the time the message was sent to the queue (epoch time in milliseconds).
- SqsManagedSseEnabled – Enables server-side queue encryption using SQS owned encryption keys. Only one server-side encryption option is supported per queue (for example, SSE-KMS or SSE-SQS).
- MessageDeduplicationId – Returns the value provided by the producer that calls the SendMessage action.
- MessageGroupId – Returns the value provided by the producer that calls the SendMessage action. Messages with the same MessageGroupId are returned in sequence.
- SequenceNumber – Returns the value provided by Amazon SQS.
:message_attribute_names (Array<String>) —
The name of the message attribute, where N is the index.
- The name can contain alphanumeric characters and the underscore (_), hyphen (-), and period (.).
- The name is case-sensitive and must be unique among all attribute names for the message.
- The name must not start with AWS-reserved prefixes such as AWS. or Amazon. (or any casing variants).
- The name must not start or end with a period (.), and it should not have periods in succession (..).
- The name can be up to 256 characters long.
When using ReceiveMessage, you can send a list of attribute names to receive, or you can return all of the attributes by specifying All or .* in your request. You can also use all message attributes starting with a prefix, for example bar.*.
:max_number_of_messages (Integer) —
The maximum number of messages to return. Amazon SQS never returns more messages than this value (however, fewer messages might be returned). Valid values: 1 to 10. Default: 1.
:visibility_timeout (Integer) —
The duration (in seconds) that the received messages are hidden from subsequent retrieve requests after being retrieved by a ReceiveMessage request.
:wait_time_seconds (Integer) —
The duration (in seconds) for which the call waits for a message to arrive in the queue before returning. If a message is available, the call returns sooner than WaitTimeSeconds. If no messages are available and the wait time expires, the call returns successfully with an empty list of messages.

To avoid HTTP errors, ensure that the HTTP response timeout for ReceiveMessage requests is longer than the WaitTimeSeconds parameter. For example, with the Java SDK, you can set HTTP transport settings using the NettyNioAsyncHttpClient for asynchronous clients, or the ApacheHttpClient for synchronous clients.
:receive_request_attempt_id (String) —
This parameter applies only to FIFO (first-in-first-out) queues.

The token used for deduplication of ReceiveMessage calls. If a networking issue occurs after a ReceiveMessage action, and instead of a response you receive a generic error, it is possible to retry the same action with an identical ReceiveRequestAttemptId to retrieve the same set of messages, even if their visibility timeout has not yet expired.
- You can use ReceiveRequestAttemptId only for 5 minutes after a ReceiveMessage action.
- When you set FifoQueue, a caller of the ReceiveMessage action can provide a ReceiveRequestAttemptId explicitly.
- If a caller of the ReceiveMessage action doesn't provide a ReceiveRequestAttemptId, Amazon SQS generates a ReceiveRequestAttemptId.
- It is possible to retry the ReceiveMessage action with the same ReceiveRequestAttemptId if none of the messages have been modified (deleted or had their visibility changes).
- During a visibility timeout, subsequent calls with the same ReceiveRequestAttemptId return the same messages and receipt handles. If a retry occurs within the deduplication interval, it resets the visibility timeout. For more information, see Visibility Timeout in the Amazon SQS Developer Guide.
  
  If a caller of the ReceiveMessage action still processes messages when the visibility timeout expires and messages become visible, another worker consuming from the same queue can receive the same messages and therefore process duplicates. Also, if a consumer whose message processing time is longer than the visibility timeout tries to delete the processed messages, the action fails with an error.
  
  To mitigate this effect, ensure that your application observes a safe threshold before the visibility timeout expires and extend the visibility timeout as necessary.
- While messages with a particular MessageGroupId are invisible, no more messages belonging to the same MessageGroupId are returned until the visibility timeout expires. You can still receive messages with another MessageGroupId as long as it is also visible.
- If a caller of ReceiveMessage can't track the ReceiveRequestAttemptId, no retries work until the original visibility timeout expires. As a result, delays might occur but the messages in the queue remain in a strict order.
The maximum length of ReceiveRequestAttemptId is 128 characters. ReceiveRequestAttemptId can contain alphanumeric characters (a-z, A-Z, 0-9) and punctuation (!"#$%&'()*+,-./:;<=>?@[\]^_`\{|\}~).

For best practices of using ReceiveRequestAttemptId, see Using the ReceiveRequestAttemptId Request Parameter in the Amazon SQS Developer Guide.

Returns:

(Message::Collection)

# File 'gems/aws-sdk-sqs/lib/aws-sdk-sqs/queue.rb', line 371

def receive_messages(options = {})
  batch = []
  options = options.merge(queue_url: @url)
  resp = Aws::Plugins::UserAgent.feature('resource') do
    @client.receive_message(options)
  end
  resp.data.messages.each do |m|
    batch << Message.new(
      queue_url: @url,
      receipt_handle: m.receipt_handle,
      data: m,
      client: @client
    )
  end
  Message::Collection.new([batch], size: batch.size)
end

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

Examples:

Request syntax with placeholder values


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

Parameters:

options (Hash) (defaults to: {}) —
({})

Options Hash (options):

:label (required, String) —
The identification of the permission to remove. This is the label added using the AddPermission action.

Returns:

(EmptyStructure)

# File 'gems/aws-sdk-sqs/lib/aws-sdk-sqs/queue.rb', line 398

def remove_permission(options = {})
  options = options.merge(queue_url: @url)
  resp = Aws::Plugins::UserAgent.feature('resource') do
    @client.remove_permission(options)
  end
  resp.data
end

#send_message(options = {}) ⇒ `Types::SendMessageResult`

Examples:

Request syntax with placeholder values


queue.send_message({
  message_body: "String", # required
  delay_seconds: 1,
  message_attributes: {
    "String" => {
      string_value: "String",
      binary_value: "data",
      string_list_values: ["String"],
      binary_list_values: ["data"],
      data_type: "String", # required
    },
  },
  message_system_attributes: {
    "AWSTraceHeader" => {
      string_value: "String",
      binary_value: "data",
      string_list_values: ["String"],
      binary_list_values: ["data"],
      data_type: "String", # required
    },
  },
  message_deduplication_id: "String",
  message_group_id: "String",
})

Parameters:

options (Hash) (defaults to: {}) —
({})

Options Hash (options):

:message_body (required, String) —
The message to send. The minimum size is one character. The maximum size is 256 KiB.

A message can include only XML, JSON, and unformatted text. The following Unicode characters are allowed:

#x9 | #xA | #xD | #x20 to #xD7FF | #xE000 to #xFFFD | #x10000 to #x10FFFF

Any characters not included in this list will be rejected. For more information, see the W3C specification for characters.
:delay_seconds (Integer) —
The length of time, in seconds, for which to delay a specific message. Valid values: 0 to 900. Maximum: 15 minutes. Messages with a positive DelaySeconds value become available for processing after the delay period is finished. If you don't specify a value, the default value for the queue applies.

When you set FifoQueue, you can't set DelaySeconds per message. You can set this parameter only on a queue level.
:message_attributes (Hash<String,Types::MessageAttributeValue>) —
Each message attribute consists of a Name, Type, and Value. For more information, see Amazon SQS message attributes in the Amazon SQS Developer Guide.
:message_system_attributes (Hash<String,Types::MessageSystemAttributeValue>) —
The message system attribute to send. Each message system attribute consists of a Name, Type, and Value.
- Currently, the only supported message system attribute is AWSTraceHeader. Its type must be String and its value must be a correctly formatted X-Ray trace header string.
- The size of a message system attribute doesn't count towards the total size of a message.
:message_deduplication_id (String) —
This parameter applies only to FIFO (first-in-first-out) queues.

The token used for deduplication of sent messages. If a message with a particular MessageDeduplicationId is sent successfully, any messages sent with the same MessageDeduplicationId are accepted successfully but aren't delivered during the 5-minute deduplication interval. For more information, see Exactly-once processing in the Amazon SQS Developer Guide.
- Every message must have a unique MessageDeduplicationId,
  - You may provide a MessageDeduplicationId explicitly.
  - If you aren't able to provide a MessageDeduplicationId and you enable ContentBasedDeduplication for your queue, Amazon SQS uses a SHA-256 hash to generate the MessageDeduplicationId using the body of the message (but not the attributes of the message).
  - If you don't provide a MessageDeduplicationId and the queue doesn't have ContentBasedDeduplication set, the action fails with an error.
  - If the queue has ContentBasedDeduplication set, your MessageDeduplicationId overrides the generated one.
- 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 you send one message with ContentBasedDeduplication enabled and then another message with a MessageDeduplicationId that is the same as the one generated for the first MessageDeduplicationId, the two messages are treated as duplicates and only one copy of the message is delivered.
The MessageDeduplicationId is available to the consumer of the message (this can be useful for troubleshooting delivery issues).

If a message is sent successfully but the acknowledgement is lost and the message is resent with the same MessageDeduplicationId after the deduplication interval, Amazon SQS can't detect duplicate messages.

Amazon SQS continues to keep track of the message deduplication ID even after the message is received and deleted.

The maximum length of MessageDeduplicationId is 128 characters. MessageDeduplicationId can contain alphanumeric characters (a-z, A-Z, 0-9) and punctuation (!"#$%&'()*+,-./:;<=>?@[\]^_`\{|\}~).

For best practices of using MessageDeduplicationId, see Using the MessageDeduplicationId Property in the Amazon SQS Developer Guide.
:message_group_id (String) —
This parameter applies only to FIFO (first-in-first-out) queues.

The 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). To interleave multiple ordered streams within a single queue, use MessageGroupId values (for example, session data for multiple users). In this scenario, multiple consumers can process the queue, but the session data of each user is processed in a FIFO fashion.
- You must associate a non-empty MessageGroupId with a message. If you don't provide a MessageGroupId, the action fails.
- ReceiveMessage might return messages with multiple MessageGroupId values. For each MessageGroupId, the messages are sorted by time sent. The caller can't specify a MessageGroupId.
The length of MessageGroupId is 128 characters. Valid values: alphanumeric characters and punctuation (!"#$%&'()*+,-./:;<=>?@[\]^_`\{|\}~).

For best practices of using MessageGroupId, see Using the MessageGroupId Property in the Amazon SQS Developer Guide.

MessageGroupId is required for FIFO queues. You can't use it for Standard queues.

Returns:

(Types::SendMessageResult)

# File 'gems/aws-sdk-sqs/lib/aws-sdk-sqs/queue.rb', line 572

def send_message(options = {})
  options = options.merge(queue_url: @url)
  resp = Aws::Plugins::UserAgent.feature('resource') do
    @client.send_message(options)
  end
  resp.data
end

#send_messages(options = {}) ⇒ `Types::SendMessageBatchResult`

Examples:

Request syntax with placeholder values


queue.send_messages({
  entries: [ # required
    {
      id: "String", # required
      message_body: "String", # required
      delay_seconds: 1,
      message_attributes: {
        "String" => {
          string_value: "String",
          binary_value: "data",
          string_list_values: ["String"],
          binary_list_values: ["data"],
          data_type: "String", # required
        },
      },
      message_system_attributes: {
        "AWSTraceHeader" => {
          string_value: "String",
          binary_value: "data",
          string_list_values: ["String"],
          binary_list_values: ["data"],
          data_type: "String", # required
        },
      },
      message_deduplication_id: "String",
      message_group_id: "String",
    },
  ],
})

Parameters:

options (Hash) (defaults to: {}) —
({})

Options Hash (options):

:entries (required, Array<Types::SendMessageBatchRequestEntry>) —
A list of SendMessageBatchRequestEntry items.

Returns:

(Types::SendMessageBatchResult)

# File 'gems/aws-sdk-sqs/lib/aws-sdk-sqs/queue.rb', line 615

def send_messages(options = {})
  options = options.merge(queue_url: @url)
  resp = Aws::Plugins::UserAgent.feature('resource') do
    @client.send_message_batch(options)
  end
  resp.data
end

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

Examples:

Request syntax with placeholder values


queue.set_attributes({
  attributes: { # required
    "All" => "String",
  },
})

Parameters:

options (Hash) (defaults to: {}) —
({})

Options Hash (options):

:attributes (required, Hash<String,String>) —
A map of attributes to set.

The following lists the names, descriptions, and values of the special request parameters that the SetQueueAttributes action uses:
- DelaySeconds – The length of time, in seconds, for which the delivery of all messages in the queue is delayed. Valid values: An integer from 0 to 900 (15 minutes). Default: 0.
- MaximumMessageSize – The limit of how many bytes a message can contain before Amazon SQS rejects it. Valid values: An integer from 1,024 bytes (1 KiB) up to 262,144 bytes (256 KiB). Default: 262,144 (256 KiB).
- MessageRetentionPeriod – The length of time, in seconds, for which Amazon SQS retains a message. Valid values: An integer representing seconds, from 60 (1 minute) to 1,209,600 (14 days). Default: 345,600 (4 days). When you change a queue's attributes, the change can take up to 60 seconds for most of the attributes to propagate throughout the Amazon SQS system. Changes made to the MessageRetentionPeriod attribute can take up to 15 minutes and will impact existing messages in the queue potentially causing them to be expired and deleted if the MessageRetentionPeriod is reduced below the age of existing messages.
- Policy – The queue's policy. A valid Amazon Web Services policy. For more information about policy structure, see Overview of Amazon Web Services IAM Policies in the Identity and Access Management User Guide.
- ReceiveMessageWaitTimeSeconds – The length of time, in seconds, for which a ReceiveMessage action waits for a message to arrive. Valid values: An integer from 0 to 20 (seconds). Default: 0.
- VisibilityTimeout – The visibility timeout for the queue, in seconds. Valid values: An integer from 0 to 43,200 (12 hours). Default: 30. For more information about the visibility timeout, see Visibility Timeout in the Amazon SQS Developer Guide.
The following attributes apply only to dead-letter queues:
- RedrivePolicy – The string that includes the parameters for the dead-letter queue functionality of the source queue as a JSON object. The parameters are as follows:
  - deadLetterTargetArn – The Amazon Resource Name (ARN) of the dead-letter queue to which Amazon SQS moves messages after the value of maxReceiveCount is exceeded.
  - maxReceiveCount – The number of times a message is delivered to the source queue before being moved to the dead-letter queue. Default: 10. When the ReceiveCount for a message exceeds the maxReceiveCount for a queue, Amazon SQS moves the message to the dead-letter-queue.
- RedriveAllowPolicy – The string that includes the parameters for the permissions for the dead-letter queue redrive permission and which source queues can specify dead-letter queues as a JSON object. The parameters are as follows:
  - redrivePermission – The permission type that defines which source queues can specify the current queue as the dead-letter queue. Valid values are:
    - allowAll – (Default) Any source queues in this Amazon Web Services account in the same Region can specify this queue as the dead-letter queue.
    - denyAll – No source queues can specify this queue as the dead-letter queue.
    - byQueue – Only queues specified by the sourceQueueArns parameter can specify this queue as the dead-letter queue.
  - sourceQueueArns – The Amazon Resource Names (ARN)s of the source queues that can specify this queue as the dead-letter queue and redrive messages. You can specify this parameter only when the redrivePermission parameter is set to byQueue. You can specify up to 10 source queue ARNs. To allow more than 10 source queues to specify dead-letter queues, set the redrivePermission parameter to allowAll.
The dead-letter queue of a FIFO queue must also be a FIFO queue. Similarly, the dead-letter queue of a standard queue must also be a standard queue.

The following attributes apply only to server-side-encryption:
- KmsMasterKeyId – The ID of an Amazon Web Services managed customer master key (CMK) for Amazon SQS or a custom CMK. For more information, see Key Terms. While the alias of the AWS-managed CMK for Amazon SQS is always alias/aws/sqs, the alias of a custom CMK can, for example, be alias/MyAlias. For more examples, see KeyId in the Key Management Service API Reference.
- KmsDataKeyReusePeriodSeconds – The length of time, in seconds, for which Amazon SQS can reuse a data key to encrypt or decrypt messages before calling KMS again. An integer representing seconds, between 60 seconds (1 minute) and 86,400 seconds (24 hours). Default: 300 (5 minutes). A shorter time period provides better security but results in more calls to KMS which might incur charges after Free Tier. For more information, see How Does the Data Key Reuse Period Work?.
- SqsManagedSseEnabled – Enables server-side queue encryption using SQS owned encryption keys. Only one server-side encryption option is supported per queue (for example, SSE-KMS or SSE-SQS).
The following attribute applies only to FIFO (first-in-first-out) queues:
- ContentBasedDeduplication – Enables content-based deduplication. For more information, see Exactly-once processing in the Amazon SQS Developer Guide. Note the following:
  - Every message must have a unique MessageDeduplicationId.
    - You may provide a MessageDeduplicationId explicitly.
    - If you aren't able to provide a MessageDeduplicationId and you enable ContentBasedDeduplication for your queue, Amazon SQS uses a SHA-256 hash to generate the MessageDeduplicationId using the body of the message (but not the attributes of the message).
    - If you don't provide a MessageDeduplicationId and the queue doesn't have ContentBasedDeduplication set, the action fails with an error.
    - If the queue has ContentBasedDeduplication set, your MessageDeduplicationId overrides the generated one.
  - 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 you send one message with ContentBasedDeduplication enabled and then another message with a MessageDeduplicationId that is the same as the one generated for the first MessageDeduplicationId, the two messages are treated as duplicates and only one copy of the message is delivered.
The following attributes apply only to high throughput for FIFO queues:
- DeduplicationScope – Specifies whether message deduplication occurs at the message group or queue level. Valid values are messageGroup and queue.
- FifoThroughputLimit – Specifies whether the FIFO queue throughput quota applies to the entire queue or per message group. Valid values are perQueue and perMessageGroupId. The perMessageGroupId value is allowed only when the value for DeduplicationScope is messageGroup.
To enable high throughput for FIFO queues, do the following:
- Set DeduplicationScope to messageGroup.
- Set FifoThroughputLimit to perMessageGroupId.
If you set these attributes to anything other than the values shown for enabling high throughput, normal throughput is in effect and deduplication occurs as specified.

For information on throughput quotas, see Quotas related to messages in the Amazon SQS Developer Guide.

Returns:

(EmptyStructure)

# File 'gems/aws-sdk-sqs/lib/aws-sdk-sqs/queue.rb', line 820

def set_attributes(options = {})
  options = options.merge(queue_url: @url)
  resp = Aws::Plugins::UserAgent.feature('resource') do
    @client.set_queue_attributes(options)
  end
  resp.data
end

#url ⇒ `String`

Returns:

(String)



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# File 'gems/aws-sdk-sqs/lib/aws-sdk-sqs/queue.rb', line 33

def url
  @url
end

Class: Aws::SQS::Queue

Defined Under Namespace

Read-Only Attributes collapse

Actions collapse

Associations collapse

Instance Method Summary collapse

Constructor Details

#initialize(url, options = {}) ⇒ Queue #initialize(options = {}) ⇒ Queue

Instance Method Details

#add_permission(options = {}) ⇒ EmptyStructure

Examples:

Request syntax with placeholder values

#attributes ⇒ Hash<String,String>

#change_message_visibility_batch(options = {}) ⇒ Types::ChangeMessageVisibilityBatchResult

Examples:

Request syntax with placeholder values

#client ⇒ Client

#data ⇒ Types::GetQueueAttributesResult

#data_loaded? ⇒ Boolean

#dead_letter_source_queues(options = {}) ⇒ Queue::Collection

Examples:

Request syntax with placeholder values

#delete(options = {}) ⇒ EmptyStructure

Examples:

Request syntax with placeholder values

#delete_messages(options = {}) ⇒ Types::DeleteMessageBatchResult

Examples:

Request syntax with placeholder values

#load ⇒ self Also known as: reload

#message(receipt_handle) ⇒ Message

#purge(options = {}) ⇒ EmptyStructure

Examples:

Request syntax with placeholder values

#receive_messages(options = {}) ⇒ Message::Collection

Examples:

Request syntax with placeholder values

#remove_permission(options = {}) ⇒ EmptyStructure

Examples:

Request syntax with placeholder values

#send_message(options = {}) ⇒ Types::SendMessageResult

Examples:

Request syntax with placeholder values

#send_messages(options = {}) ⇒ Types::SendMessageBatchResult

Examples:

Request syntax with placeholder values

#set_attributes(options = {}) ⇒ EmptyStructure

Examples:

Request syntax with placeholder values

#url ⇒ String

#initialize(url, options = {}) ⇒ `Queue` #initialize(options = {}) ⇒ `Queue`

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

#attributes ⇒ `Hash<String,String>`

#change_message_visibility_batch(options = {}) ⇒ `Types::ChangeMessageVisibilityBatchResult`

#client ⇒ `Client`

#data ⇒ `Types::GetQueueAttributesResult`

#data_loaded? ⇒ `Boolean`

#dead_letter_source_queues(options = {}) ⇒ `Queue::Collection`

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

#delete_messages(options = {}) ⇒ `Types::DeleteMessageBatchResult`

#load ⇒ `self` Also known as: reload

#message(receipt_handle) ⇒ `Message`

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

#receive_messages(options = {}) ⇒ `Message::Collection`

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

#send_message(options = {}) ⇒ `Types::SendMessageResult`

#send_messages(options = {}) ⇒ `Types::SendMessageBatchResult`

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

#url ⇒ `String`