class Aws::SQS::Client

An API client for SQS. To construct a client, you need to configure a `:region` and `:credentials`.

client = Aws::SQS::Client.new(
  region: region_name,
  credentials: credentials,
  # ...
)

For details on configuring region and credentials see the [developer guide](/sdk-for-ruby/v3/developer-guide/setup-config.html).

See {#initialize} for a full list of supported configuration options.

Attributes

identifier[R]

@api private

Public Class Methods

errors_module() click to toggle source

@api private

# File lib/aws-sdk-sqs/client.rb, line 2542
def errors_module
  Errors
end
new(*args) click to toggle source

@overload initialize(options)

@param [Hash] options
@option options [required, Aws::CredentialProvider] :credentials
  Your AWS credentials. This can be an instance of any one of the
  following classes:

  * `Aws::Credentials` - Used for configuring static, non-refreshing
    credentials.

  * `Aws::SharedCredentials` - Used for loading static credentials from a
    shared file, such as `~/.aws/config`.

  * `Aws::AssumeRoleCredentials` - Used when you need to assume a role.

  * `Aws::AssumeRoleWebIdentityCredentials` - Used when you need to
    assume a role after providing credentials via the web.

  * `Aws::SSOCredentials` - Used for loading credentials from AWS SSO using an
    access token generated from `aws login`.

  * `Aws::ProcessCredentials` - Used for loading credentials from a
    process that outputs to stdout.

  * `Aws::InstanceProfileCredentials` - Used for loading credentials
    from an EC2 IMDS on an EC2 instance.

  * `Aws::ECSCredentials` - Used for loading credentials from
    instances running in ECS.

  * `Aws::CognitoIdentityCredentials` - Used for loading credentials
    from the Cognito Identity service.

  When `:credentials` are not configured directly, the following
  locations will be searched for credentials:

  * `Aws.config[:credentials]`
  * The `:access_key_id`, `:secret_access_key`, and `:session_token` options.
  * ENV['AWS_ACCESS_KEY_ID'], ENV['AWS_SECRET_ACCESS_KEY']
  * `~/.aws/credentials`
  * `~/.aws/config`
  * EC2/ECS IMDS instance profile - When used by default, the timeouts
    are very aggressive. Construct and pass an instance of
    `Aws::InstanceProfileCredentails` or `Aws::ECSCredentials` to
    enable retries and extended timeouts.

@option options [required, String] :region
  The AWS region to connect to.  The configured `:region` is
  used to determine the service `:endpoint`. When not passed,
  a default `:region` is searched for in the following locations:

  * `Aws.config[:region]`
  * `ENV['AWS_REGION']`
  * `ENV['AMAZON_REGION']`
  * `ENV['AWS_DEFAULT_REGION']`
  * `~/.aws/credentials`
  * `~/.aws/config`

@option options [String] :access_key_id

@option options [Boolean] :active_endpoint_cache (false)
  When set to `true`, a thread polling for endpoints will be running in
  the background every 60 secs (default). Defaults to `false`.

@option options [Boolean] :adaptive_retry_wait_to_fill (true)
  Used only in `adaptive` retry mode.  When true, the request will sleep
  until there is sufficent client side capacity to retry the request.
  When false, the request will raise a `RetryCapacityNotAvailableError` and will
  not retry instead of sleeping.

@option options [Boolean] :client_side_monitoring (false)
  When `true`, client-side metrics will be collected for all API requests from
  this client.

@option options [String] :client_side_monitoring_client_id ("")
  Allows you to provide an identifier for this client which will be attached to
  all generated client side metrics. Defaults to an empty string.

@option options [String] :client_side_monitoring_host ("127.0.0.1")
  Allows you to specify the DNS hostname or IPv4 or IPv6 address that the client
  side monitoring agent is running on, where client metrics will be published via UDP.

@option options [Integer] :client_side_monitoring_port (31000)
  Required for publishing client metrics. The port that the client side monitoring
  agent is running on, where client metrics will be published via UDP.

@option options [Aws::ClientSideMonitoring::Publisher] :client_side_monitoring_publisher (Aws::ClientSideMonitoring::Publisher)
  Allows you to provide a custom client-side monitoring publisher class. By default,
  will use the Client Side Monitoring Agent Publisher.

@option options [Boolean] :convert_params (true)
  When `true`, an attempt is made to coerce request parameters into
  the required types.

@option options [Boolean] :correct_clock_skew (true)
  Used only in `standard` and adaptive retry modes. Specifies whether to apply
  a clock skew correction and retry requests with skewed client clocks.

@option options [Boolean] :disable_host_prefix_injection (false)
  Set to true to disable SDK automatically adding host prefix
  to default service endpoint when available.

@option options [String] :endpoint
  The client endpoint is normally constructed from the `:region`
  option. You should only configure an `:endpoint` when connecting
  to test or custom endpoints. This should be a valid HTTP(S) URI.

@option options [Integer] :endpoint_cache_max_entries (1000)
  Used for the maximum size limit of the LRU cache storing endpoints data
  for endpoint discovery enabled operations. Defaults to 1000.

@option options [Integer] :endpoint_cache_max_threads (10)
  Used for the maximum threads in use for polling endpoints to be cached, defaults to 10.

@option options [Integer] :endpoint_cache_poll_interval (60)
  When :endpoint_discovery and :active_endpoint_cache is enabled,
  Use this option to config the time interval in seconds for making
  requests fetching endpoints information. Defaults to 60 sec.

@option options [Boolean] :endpoint_discovery (false)
  When set to `true`, endpoint discovery will be enabled for operations when available.

@option options [Aws::Log::Formatter] :log_formatter (Aws::Log::Formatter.default)
  The log formatter.

@option options [Symbol] :log_level (:info)
  The log level to send messages to the `:logger` at.

@option options [Logger] :logger
  The Logger instance to send log messages to.  If this option
  is not set, logging will be disabled.

@option options [Integer] :max_attempts (3)
  An integer representing the maximum number attempts that will be made for
  a single request, including the initial attempt.  For example,
  setting this value to 5 will result in a request being retried up to
  4 times. Used in `standard` and `adaptive` retry modes.

@option options [String] :profile ("default")
  Used when loading credentials from the shared credentials file
  at HOME/.aws/credentials.  When not specified, 'default' is used.

@option options [Proc] :retry_backoff
  A proc or lambda used for backoff. Defaults to 2**retries * retry_base_delay.
  This option is only used in the `legacy` retry mode.

@option options [Float] :retry_base_delay (0.3)
  The base delay in seconds used by the default backoff function. This option
  is only used in the `legacy` retry mode.

@option options [Symbol] :retry_jitter (:none)
  A delay randomiser function used by the default backoff function.
  Some predefined functions can be referenced by name - :none, :equal, :full,
  otherwise a Proc that takes and returns a number. This option is only used
  in the `legacy` retry mode.

  @see https://www.awsarchitectureblog.com/2015/03/backoff.html

@option options [Integer] :retry_limit (3)
  The maximum number of times to retry failed requests.  Only
  ~ 500 level server errors and certain ~ 400 level client errors
  are retried.  Generally, these are throttling errors, data
  checksum errors, networking errors, timeout errors, auth errors,
  endpoint discovery, and errors from expired credentials.
  This option is only used in the `legacy` retry mode.

@option options [Integer] :retry_max_delay (0)
  The maximum number of seconds to delay between retries (0 for no limit)
  used by the default backoff function. This option is only used in the
  `legacy` retry mode.

@option options [String] :retry_mode ("legacy")
  Specifies which retry algorithm to use. Values are:

  * `legacy` - The pre-existing retry behavior.  This is default value if
    no retry mode is provided.

  * `standard` - A standardized set of retry rules across the AWS SDKs.
    This includes support for retry quotas, which limit the number of
    unsuccessful retries a client can make.

  * `adaptive` - An experimental retry mode that includes all the
    functionality of `standard` mode along with automatic client side
    throttling.  This is a provisional mode that may change behavior
    in the future.

@option options [String] :secret_access_key

@option options [String] :session_token

@option options [Boolean] :stub_responses (false)
  Causes the client to return stubbed responses. By default
  fake responses are generated and returned. You can specify
  the response data to return or errors to raise by calling
  {ClientStubs#stub_responses}. See {ClientStubs} for more information.

  ** Please note ** When response stubbing is enabled, no HTTP
  requests are made, and retries are disabled.

@option options [Boolean] :validate_params (true)
  When `true`, request parameters are validated before
  sending the request.

@option options [Boolean] :verify_checksums (true)
  When `true` MD5 checksums will be computed for messages sent to
  an SQS queue and matched against MD5 checksums returned by Amazon SQS.
  `Aws::Errors::Checksum` errors are raised for cases where checksums do
  not match.

@option options [URI::HTTP,String] :http_proxy A proxy to send
  requests through.  Formatted like 'http://proxy.com:123'.

@option options [Float] :http_open_timeout (15) The number of
  seconds to wait when opening a HTTP session before raising a
  `Timeout::Error`.

@option options [Integer] :http_read_timeout (60) The default
  number of seconds to wait for response data.  This value can
  safely be set per-request on the session.

@option options [Float] :http_idle_timeout (5) The number of
  seconds a connection is allowed to sit idle before it is
  considered stale.  Stale connections are closed and removed
  from the pool before making a request.

@option options [Float] :http_continue_timeout (1) The number of
  seconds to wait for a 100-continue response before sending the
  request body.  This option has no effect unless the request has
  "Expect" header set to "100-continue".  Defaults to `nil` which
  disables this behaviour.  This value can safely be set per
  request on the session.

@option options [Boolean] :http_wire_trace (false) When `true`,
  HTTP debug output will be sent to the `:logger`.

@option options [Boolean] :ssl_verify_peer (true) When `true`,
  SSL peer certificates are verified when establishing a
  connection.

@option options [String] :ssl_ca_bundle Full path to the SSL
  certificate authority bundle file that should be used when
  verifying peer certificates.  If you do not pass
  `:ssl_ca_bundle` or `:ssl_ca_directory` the the system default
  will be used if available.

@option options [String] :ssl_ca_directory Full path of the
  directory that contains the unbundled SSL certificate
  authority files for verifying peer certificates.  If you do
  not pass `:ssl_ca_bundle` or `:ssl_ca_directory` the the
  system default will be used if available.
Calls superclass method
# File lib/aws-sdk-sqs/client.rb, line 334
def initialize(*args)
  super
end

Public Instance Methods

add_permission(params = {}, options = {}) click to toggle source

Adds a permission to a queue for a specific [principal]. This allows sharing access to the queue.

When you create a queue, you have full control access rights for the queue. Only you, the owner of the queue, can grant or deny permissions to the queue. For more information about these permissions, see [Allow Developers to Write Messages to a Shared Queue] in the *Amazon SQS Developer Guide*.

<note markdown=“1”> * `AddPermission` generates a policy for you. You can use `

SetQueueAttributes ` to upload your policy. For more information,
see [Using Custom Policies with the Amazon SQS Access Policy
Language][3] in the *Amazon SQS Developer Guide*.
  • An Amazon SQS policy can have a maximum of 7 actions.

  • To remove the ability to change queue permissions, you must deny permission to the `AddPermission`, `RemovePermission`, and `SetQueueAttributes` actions in your IAM policy.

</note>

Some actions take lists of parameters. These lists are specified using the `param.n` notation. Values of `n` are integers starting from 1. For example, a parameter list with two elements looks like this:

`&AttributeName.1=first`

`&AttributeName.2=second`

<note markdown=“1”> Cross-account permissions don't apply to this action. For more information, see [Grant cross-account permissions to a role and a user name] in the *Amazon SQS Developer Guide*.

</note>

[1]: docs.aws.amazon.com/general/latest/gr/glos-chap.html#P [2]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-writing-an-sqs-policy.html#write-messages-to-shared-queue [3]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-creating-custom-policies.html [4]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-customer-managed-policy-examples.html#grant-cross-account-permissions-to-role-and-user-name

@option params [required, String] :queue_url

The URL of the Amazon SQS queue to which permissions are added.

Queue URLs and names are case-sensitive.

@option params [required, String] :label

The unique identification of the permission you're setting (for
example, `AliceSendMessage`). Maximum 80 characters. Allowed
characters include alphanumeric characters, hyphens (`-`), and
underscores (`_`).

@option params [required, Array<String>] :aws_account_ids

The account numbers of the [principals][1] who are to receive
permission. For information about locating the account identification,
see [Your Amazon Web Services Identifiers][2] in the *Amazon SQS
Developer Guide*.

[1]: https://docs.aws.amazon.com/general/latest/gr/glos-chap.html#P
[2]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-making-api-requests.html#sqs-api-request-authentication

@option params [required, Array<String>] :actions

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][1] 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`.

[1]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-overview-of-managing-access.html

@return [Struct] Returns an empty {Seahorse::Client::Response response}.

@example Request syntax with placeholder values

resp = client.add_permission({
  queue_url: "String", # required
  label: "String", # required
  aws_account_ids: ["String"], # required
  actions: ["String"], # required
})

@see docs.aws.amazon.com/goto/WebAPI/sqs-2012-11-05/AddPermission AWS API Documentation

@overload add_permission(params = {}) @param [Hash] params ({})

# File lib/aws-sdk-sqs/client.rb, line 438
def add_permission(params = {}, options = {})
  req = build_request(:add_permission, params)
  req.send_request(options)
end
build_request(operation_name, params = {}) click to toggle source

@param params ({}) @api private

# File lib/aws-sdk-sqs/client.rb, line 2517
def build_request(operation_name, params = {})
  handlers = @handlers.for(operation_name)
  context = Seahorse::Client::RequestContext.new(
    operation_name: operation_name,
    operation: config.api.operation(operation_name),
    client: self,
    params: params,
    config: config)
  context[:gem_name] = 'aws-sdk-sqs'
  context[:gem_version] = '1.44.0'
  Seahorse::Client::Request.new(handlers, context)
end
change_message_visibility(params = {}, options = {}) click to toggle source

Changes the visibility timeout of a specified message in a queue to a new value. The default visibility timeout for a message is 30 seconds. The minimum is 0 seconds. The maximum is 12 hours. For more information, see [Visibility Timeout] in the *Amazon SQS Developer Guide*.

For example, you have a message with a visibility timeout of 5 minutes. After 3 minutes, you call `ChangeMessageVisibility` with a timeout of 10 minutes. You can continue to call `ChangeMessageVisibility` to extend the visibility timeout to the maximum allowed time. If you try to extend the visibility timeout beyond the maximum, your request is rejected.

An Amazon SQS message has three basic states:

  1. Sent to a queue by a producer.

  2. Received from the queue by a consumer.

  3. Deleted from the queue.

A message is considered to be stored after it is sent to a queue by a producer, but not yet received from the queue by a consumer (that is, between states 1 and 2). There is no limit to the number of stored messages. A message is considered to be *in flight* after it is received from a queue by a consumer, but not yet deleted from the queue (that is, between states 2 and 3). There is a limit to the number of inflight messages.

Limits that apply to inflight messages are unrelated to the unlimited number of stored messages.

For most standard queues (depending on queue traffic and message backlog), there can be a maximum of approximately 120,000 inflight messages (received from a queue by a consumer, but not yet deleted from the queue). If you reach this limit, Amazon SQS returns the `OverLimit` error message. To avoid reaching the limit, you should delete messages from the queue after they're processed. You can also increase the number of queues you use to process your messages. To request a limit increase, [file a support request].

For FIFO queues, there can be a maximum of 20,000 inflight messages (received from a queue by a consumer, but not yet deleted from the queue). If you reach this limit, Amazon SQS returns no error messages.

If you attempt to set the `VisibilityTimeout` to a value greater than the maximum time left, Amazon SQS returns an error. Amazon SQS doesn't automatically recalculate and increase the timeout to the maximum remaining time.

Unlike with a queue, when you change the visibility timeout for a

specific message the timeout value is applied immediately but isn't saved in memory for that message. If you don't delete a message after it is received, the visibility timeout for the message reverts to the original timeout value (not to the value you set using the `ChangeMessageVisibility` action) the next time the message is received.

[1]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-visibility-timeout.html [2]: console.aws.amazon.com/support/home#/case/create?issueType=service-limit-increase&limitType=service-code-sqs

@option params [required, String] :queue_url

The URL of the Amazon SQS queue whose message's visibility is
changed.

Queue URLs and names are case-sensitive.

@option params [required, String] :receipt_handle

The receipt handle associated with the message whose visibility
timeout is changed. This parameter is returned by the ` ReceiveMessage
` action.

@option params [required, Integer] :visibility_timeout

The new value for the message's visibility timeout (in seconds).
Values range: `0` to `43200`. Maximum: 12 hours.

@return [Struct] Returns an empty {Seahorse::Client::Response response}.

@example Request syntax with placeholder values

resp = client.change_message_visibility({
  queue_url: "String", # required
  receipt_handle: "String", # required
  visibility_timeout: 1, # required
})

@see docs.aws.amazon.com/goto/WebAPI/sqs-2012-11-05/ChangeMessageVisibility AWS API Documentation

@overload change_message_visibility(params = {}) @param [Hash] params ({})

# File lib/aws-sdk-sqs/client.rb, line 535
def change_message_visibility(params = {}, options = {})
  req = build_request(:change_message_visibility, params)
  req.send_request(options)
end
change_message_visibility_batch(params = {}, options = {}) click to toggle source

Changes the visibility timeout of multiple messages. This is a batch version of ` ChangeMessageVisibility.` The result of the action on each message is reported individually in the response. You can send up to 10 ` ChangeMessageVisibility ` requests with each `ChangeMessageVisibilityBatch` action.

Because the batch request can result in a combination of successful and unsuccessful actions, you should check for batch errors even when the call returns an HTTP status code of `200`.

Some actions take lists of parameters. These lists are specified using the `param.n` notation. Values of `n` are integers starting from 1. For example, a parameter list with two elements looks like this:

`&AttributeName.1=first`

`&AttributeName.2=second`

@option params [required, String] :queue_url

The URL of the Amazon SQS queue whose messages' visibility is
changed.

Queue URLs and names are case-sensitive.

@option params [required, Array<Types::ChangeMessageVisibilityBatchRequestEntry>] :entries

A list of receipt handles of the messages for which the visibility
timeout must be changed.

@return [Types::ChangeMessageVisibilityBatchResult] Returns a {Seahorse::Client::Response response} object which responds to the following methods:

* {Types::ChangeMessageVisibilityBatchResult#successful #successful} => Array&lt;Types::ChangeMessageVisibilityBatchResultEntry&gt;
* {Types::ChangeMessageVisibilityBatchResult#failed #failed} => Array&lt;Types::BatchResultErrorEntry&gt;

@example Request syntax with placeholder values

resp = client.change_message_visibility_batch({
  queue_url: "String", # required
  entries: [ # required
    {
      id: "String", # required
      receipt_handle: "String", # required
      visibility_timeout: 1,
    },
  ],
})

@example Response structure

resp.successful #=> Array
resp.successful[0].id #=> String
resp.failed #=> Array
resp.failed[0].id #=> String
resp.failed[0].sender_fault #=> Boolean
resp.failed[0].code #=> String
resp.failed[0].message #=> String

@see docs.aws.amazon.com/goto/WebAPI/sqs-2012-11-05/ChangeMessageVisibilityBatch AWS API Documentation

@overload change_message_visibility_batch(params = {}) @param [Hash] params ({})

# File lib/aws-sdk-sqs/client.rb, line 600
def change_message_visibility_batch(params = {}, options = {})
  req = build_request(:change_message_visibility_batch, params)
  req.send_request(options)
end
create_queue(params = {}, options = {}) click to toggle source

Creates a new standard or FIFO queue. You can pass one or more attributes in the request. Keep the following in mind:

  • If you don't specify the `FifoQueue` attribute, Amazon SQS creates a standard queue.

    <note markdown=“1”> You can't change the queue type after you create it and you can't convert an existing standard queue into a FIFO queue. You must either create a new FIFO queue for your application or delete your existing standard queue and recreate it as a FIFO queue. For more information, see [Moving From a Standard Queue to a FIFO Queue] in the *Amazon SQS Developer Guide*.

    </note>
  • If you don't provide a value for an attribute, the queue is created with the default value for the attribute.

  • If you delete a queue, you must wait at least 60 seconds before creating a queue with the same name.

To successfully create a new queue, you must provide a queue name that adheres to the [limits related to queues] and is unique within the scope of your queues.

<note markdown=“1”> After you create a queue, you must wait at least one second after the queue is created to be able to use the queue.

</note>

To get the queue URL, use the ` GetQueueUrl ` action. ` GetQueueUrl ` requires only the `QueueName` parameter. be aware of existing queue names:

  • If you provide the name of an existing queue along with the exact names and values of all the queue's attributes, `CreateQueue` returns the queue URL for the existing queue.

  • If the queue name, attribute names, or attribute values don't match an existing queue, `CreateQueue` returns an error.

Some actions take lists of parameters. These lists are specified using the `param.n` notation. Values of `n` are integers starting from 1. For example, a parameter list with two elements looks like this:

`&AttributeName.1=first`

`&AttributeName.2=second`

<note markdown=“1”> Cross-account permissions don't apply to this action. For more information, see [Grant cross-account permissions to a role and a user name] in the *Amazon SQS Developer Guide*.

</note>

[1]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/FIFO-queues.html#FIFO-queues-moving [2]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/limits-queues.html [3]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-customer-managed-policy-examples.html#grant-cross-account-permissions-to-role-and-user-name

@option params [required, String] :queue_name

The name of the new queue. The following limits apply to this name:

* A queue name can have up to 80 characters.

* Valid values: alphanumeric characters, hyphens (`-`), and
  underscores (`_`).

* A FIFO queue name must end with the `.fifo` suffix.

Queue URLs and names are case-sensitive.

@option params [Hash<String,String>] :attributes

A map of attributes with their corresponding values.

The following lists the names, descriptions, and values of the special
request parameters that the `CreateQueue` 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 seconds (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) 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 from 60
  seconds (1 minute) to 1,209,600 seconds (14 days). Default: 345,600
  (4 days).

* `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][1] in the *Amazon IAM 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][2] in the *Amazon SQS Developer Guide*.

The following attributes apply only to [dead-letter queues:][3]

* `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. 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`.

<note markdown="1"> 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.

 </note>

The following attributes apply only to [server-side-encryption][4]\:

* `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][5]. While the alias of the Amazon Web
  Services 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][6] in the *Key Management Service API
  Reference*.

* `KmsDataKeyReusePeriodSeconds` – The length of time, in seconds, for
  which Amazon SQS can reuse a [data key][7] 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?][8].

The following attributes apply only to [FIFO (first-in-first-out)
queues][9]\:

* `FifoQueue` – Designates a queue as FIFO. Valid values are `true`
  and `false`. If you don't specify the `FifoQueue` attribute, Amazon
  SQS creates a standard queue. You can provide this attribute only
  during queue creation. You can't change it for an existing queue.
  When you set this attribute, you must also provide the
  `MessageGroupId` for your messages explicitly.

  For more information, see [FIFO queue logic][10] in the *Amazon SQS
  Developer Guide*.

* `ContentBasedDeduplication` – Enables content-based deduplication.
  Valid values are `true` and `false`. For more information, see
  [Exactly-once processing][11] 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][12]\:

* `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][13] in the *Amazon SQS Developer Guide*.

[1]: https://docs.aws.amazon.com/IAM/latest/UserGuide/PoliciesOverview.html
[2]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-visibility-timeout.html
[3]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-dead-letter-queues.html
[4]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-server-side-encryption.html
[5]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-server-side-encryption.html#sqs-sse-key-terms
[6]: https://docs.aws.amazon.com/kms/latest/APIReference/API_DescribeKey.html#API_DescribeKey_RequestParameters
[7]: https://docs.aws.amazon.com/kms/latest/developerguide/concepts.html#data-keys
[8]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-server-side-encryption.html#sqs-how-does-the-data-key-reuse-period-work
[9]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/FIFO-queues.html
[10]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/FIFO-queues-understanding-logic.html
[11]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/FIFO-queues-exactly-once-processing.html
[12]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/high-throughput-fifo.html
[13]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/quotas-messages.html

@option params [Hash<String,String>] :tags

Add cost allocation tags to the specified Amazon SQS queue. For an
overview, see [Tagging Your Amazon SQS Queues][1] in the *Amazon SQS
Developer Guide*.

When you use queue tags, keep the following guidelines in mind:

* Adding more than 50 tags to a queue isn't recommended.

* Tags don't have any semantic meaning. Amazon SQS interprets tags as
  character strings.

* Tags are case-sensitive.

* A new tag with a key identical to that of an existing tag overwrites
  the existing tag.

For a full list of tag restrictions, see [Quotas related to queues][2]
in the *Amazon SQS Developer Guide*.

<note markdown="1"> To be able to tag a queue on creation, you must have the
`sqs:CreateQueue` and `sqs:TagQueue` permissions.

 Cross-account permissions don't apply to this action. For more
information, see [Grant cross-account permissions to a role and a user
name][3] in the *Amazon SQS Developer Guide*.

 </note>

[1]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-queue-tags.html
[2]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-limits.html#limits-queues
[3]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-customer-managed-policy-examples.html#grant-cross-account-permissions-to-role-and-user-name

@return [Types::CreateQueueResult] Returns a {Seahorse::Client::Response response} object which responds to the following methods:

* {Types::CreateQueueResult#queue_url #queue_url} => String

@example Request syntax with placeholder values

resp = client.create_queue({
  queue_name: "String", # required
  attributes: {
    "All" => "String",
  },
  tags: {
    "TagKey" => "TagValue",
  },
})

@example Response structure

resp.queue_url #=> String

@see docs.aws.amazon.com/goto/WebAPI/sqs-2012-11-05/CreateQueue AWS API Documentation

@overload create_queue(params = {}) @param [Hash] params ({})

# File lib/aws-sdk-sqs/client.rb, line 925
def create_queue(params = {}, options = {})
  req = build_request(:create_queue, params)
  req.send_request(options)
end
delete_message(params = {}, options = {}) click to toggle source

Deletes the specified message from the specified queue. To select the message to delete, use the `ReceiptHandle` of the message (not the `MessageId` which you receive when you send the message). Amazon SQS can delete a message from a queue even if a visibility timeout setting causes the message to be locked by another consumer. Amazon SQS automatically deletes messages left in a queue longer than the retention period configured for the queue.

<note markdown=“1”> The `ReceiptHandle` is associated with a *specific instance* of receiving a message. If you receive a message more than once, the `ReceiptHandle` is different each time you receive a message. When you use the `DeleteMessage` action, you must provide the most recently received `ReceiptHandle` for the message (otherwise, the request succeeds, but the message might not be deleted).

For standard queues, it is possible to receive a message even after

you delete it. This might happen on rare occasions if one of the servers which stores a copy of the message is unavailable when you send the request to delete the message. The copy remains on the server and might be returned to you during a subsequent receive request. You should ensure that your application is idempotent, so that receiving a message more than once does not cause issues.

</note>

@option params [required, String] :queue_url

The URL of the Amazon SQS queue from which messages are deleted.

Queue URLs and names are case-sensitive.

@option params [required, String] :receipt_handle

The receipt handle associated with the message to delete.

@return [Struct] Returns an empty {Seahorse::Client::Response response}.

@example Request syntax with placeholder values

resp = client.delete_message({
  queue_url: "String", # required
  receipt_handle: "String", # required
})

@see docs.aws.amazon.com/goto/WebAPI/sqs-2012-11-05/DeleteMessage AWS API Documentation

@overload delete_message(params = {}) @param [Hash] params ({})

# File lib/aws-sdk-sqs/client.rb, line 976
def delete_message(params = {}, options = {})
  req = build_request(:delete_message, params)
  req.send_request(options)
end
delete_message_batch(params = {}, options = {}) click to toggle source

Deletes up to ten messages from the specified queue. This is a batch version of ` DeleteMessage.` The result of the action on each message is reported individually in the response.

Because the batch request can result in a combination of successful and unsuccessful actions, you should check for batch errors even when the call returns an HTTP status code of `200`.

Some actions take lists of parameters. These lists are specified using the `param.n` notation. Values of `n` are integers starting from 1. For example, a parameter list with two elements looks like this:

`&AttributeName.1=first`

`&AttributeName.2=second`

@option params [required, String] :queue_url

The URL of the Amazon SQS queue from which messages are deleted.

Queue URLs and names are case-sensitive.

@option params [required, Array<Types::DeleteMessageBatchRequestEntry>] :entries

A list of receipt handles for the messages to be deleted.

@return [Types::DeleteMessageBatchResult] Returns a {Seahorse::Client::Response response} object which responds to the following methods:

* {Types::DeleteMessageBatchResult#successful #successful} => Array&lt;Types::DeleteMessageBatchResultEntry&gt;
* {Types::DeleteMessageBatchResult#failed #failed} => Array&lt;Types::BatchResultErrorEntry&gt;

@example Request syntax with placeholder values

resp = client.delete_message_batch({
  queue_url: "String", # required
  entries: [ # required
    {
      id: "String", # required
      receipt_handle: "String", # required
    },
  ],
})

@example Response structure

resp.successful #=> Array
resp.successful[0].id #=> String
resp.failed #=> Array
resp.failed[0].id #=> String
resp.failed[0].sender_fault #=> Boolean
resp.failed[0].code #=> String
resp.failed[0].message #=> String

@see docs.aws.amazon.com/goto/WebAPI/sqs-2012-11-05/DeleteMessageBatch AWS API Documentation

@overload delete_message_batch(params = {}) @param [Hash] params ({})

# File lib/aws-sdk-sqs/client.rb, line 1036
def delete_message_batch(params = {}, options = {})
  req = build_request(:delete_message_batch, params)
  req.send_request(options)
end
delete_queue(params = {}, options = {}) click to toggle source

Deletes the queue specified by the `QueueUrl`, regardless of the queue's contents.

Be careful with the `DeleteQueue` action: When you delete a queue, any messages in the queue are no longer available.

When you delete a queue, the deletion process takes up to 60 seconds. Requests you send involving that queue during the 60 seconds might succeed. For example, a ` SendMessage ` request might succeed, but after 60 seconds the queue and the message you sent no longer exist.

When you delete a queue, you must wait at least 60 seconds before creating a queue with the same name.

<note markdown=“1”> Cross-account permissions don't apply to this action. For more information, see [Grant cross-account permissions to a role and a user name] in the *Amazon SQS Developer Guide*.

</note>

[1]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-customer-managed-policy-examples.html#grant-cross-account-permissions-to-role-and-user-name

@option params [required, String] :queue_url

The URL of the Amazon SQS queue to delete.

Queue URLs and names are case-sensitive.

@return [Struct] Returns an empty {Seahorse::Client::Response response}.

@example Request syntax with placeholder values

resp = client.delete_queue({
  queue_url: "String", # required
})

@see docs.aws.amazon.com/goto/WebAPI/sqs-2012-11-05/DeleteQueue AWS API Documentation

@overload delete_queue(params = {}) @param [Hash] params ({})

# File lib/aws-sdk-sqs/client.rb, line 1082
def delete_queue(params = {}, options = {})
  req = build_request(:delete_queue, params)
  req.send_request(options)
end
get_queue_attributes(params = {}, options = {}) click to toggle source

Gets attributes for the specified queue.

<note markdown=“1”> To determine whether a queue is [FIFO], you can check whether `QueueName` ends with the `.fifo` suffix.

</note>

[1]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/FIFO-queues.html

@option params [required, String] :queue_url

The URL of the Amazon SQS queue whose attribute information is
retrieved.

Queue URLs and names are case-sensitive.

@option params [Array<String>] :attribute_names

A list of attributes for which to retrieve information.

The `AttributeName.N` parameter is optional, but if you don't specify
values for this parameter, the request returns empty results.

<note markdown="1"> In the future, new attributes might be added. If you write code that
calls this action, we recommend that you structure your code so that
it can handle new attributes gracefully.

 </note>

The following attributes are supported:

The `ApproximateNumberOfMessagesDelayed`,
`ApproximateNumberOfMessagesNotVisible`, and
`ApproximateNumberOfMessagesVisible` metrics may not achieve
consistency until at least 1 minute after the producers stop sending
messages. This period is required for the queue metadata to reach
eventual consistency.

* `All` – Returns all values.

* `ApproximateNumberOfMessages` – Returns the approximate number of
  messages available for retrieval from the queue.

* `ApproximateNumberOfMessagesDelayed` – Returns the approximate
  number of messages in the queue that are delayed and not available
  for reading immediately. This can happen when the queue is
  configured as a delay queue or when a message has been sent with a
  delay parameter.

* `ApproximateNumberOfMessagesNotVisible` – Returns the approximate
  number of messages that are in flight. Messages are considered to be
  *in flight* if they have been sent to a client but have not yet been
  deleted or have not yet reached the end of their visibility window.

* `CreatedTimestamp` – Returns the time when the queue was created in
  seconds ([epoch time][1]).

* `DelaySeconds` – Returns the default delay on the queue in seconds.

* `LastModifiedTimestamp` – Returns the time when the queue was last
  changed in seconds ([epoch time][1]).

* `MaximumMessageSize` – Returns the limit of how many bytes a message
  can contain before Amazon SQS rejects it.

* `MessageRetentionPeriod` – Returns the length of time, in seconds,
  for which Amazon SQS retains a message.

* `Policy` – Returns the policy of the queue.

* `QueueArn` – Returns the Amazon resource name (ARN) of the queue.

* `ReceiveMessageWaitTimeSeconds` – Returns the length of time, in
  seconds, for which the `ReceiveMessage` action waits for a message
  to arrive.

* `VisibilityTimeout` – Returns the visibility timeout for the queue.
  For more information about the visibility timeout, see [Visibility
  Timeout][2] in the *Amazon SQS Developer Guide*.

The following attributes apply only to [dead-letter queues:][3]

* `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. 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`.

<note markdown="1"> 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.

 </note>

The following attributes apply only to [server-side-encryption][4]\:

* `KmsMasterKeyId` – Returns 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][5].

* `KmsDataKeyReusePeriodSeconds` – Returns the length of time, in
  seconds, for which Amazon SQS can reuse a data key to encrypt or
  decrypt messages before calling KMS again. For more information, see
  [How Does the Data Key Reuse Period Work?][6].

The following attributes apply only to [FIFO (first-in-first-out)
queues][7]\:

* `FifoQueue` – Returns information about whether the queue is FIFO.
  For more information, see [FIFO queue logic][8] in the *Amazon SQS
  Developer Guide*.

  <note markdown="1"> To determine whether a queue is [FIFO][7], you can check whether
  `QueueName` ends with the `.fifo` suffix.

   </note>

* `ContentBasedDeduplication` – Returns whether content-based
  deduplication is enabled for the queue. For more information, see
  [Exactly-once processing][9] in the *Amazon SQS Developer Guide*.

The following attributes apply only to [high throughput for FIFO
queues][10]\:

* `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][11] in the *Amazon SQS Developer Guide*.

[1]: http://en.wikipedia.org/wiki/Unix_time
[2]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-visibility-timeout.html
[3]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-dead-letter-queues.html
[4]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-server-side-encryption.html
[5]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-server-side-encryption.html#sqs-sse-key-terms
[6]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-server-side-encryption.html#sqs-how-does-the-data-key-reuse-period-work
[7]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/FIFO-queues.html
[8]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/FIFO-queues-understanding-logic.html
[9]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/FIFO-queues-exactly-once-processing.html
[10]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/high-throughput-fifo.html
[11]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/quotas-messages.html

@return [Types::GetQueueAttributesResult] Returns a {Seahorse::Client::Response response} object which responds to the following methods:

* {Types::GetQueueAttributesResult#attributes #attributes} => Hash&lt;String,String&gt;

@example Request syntax with placeholder values

resp = client.get_queue_attributes({
  queue_url: "String", # required
  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
})

@example Response structure

resp.attributes #=> Hash
resp.attributes["QueueAttributeName"] #=> String

@see docs.aws.amazon.com/goto/WebAPI/sqs-2012-11-05/GetQueueAttributes AWS API Documentation

@overload get_queue_attributes(params = {}) @param [Hash] params ({})

# File lib/aws-sdk-sqs/client.rb, line 1302
def get_queue_attributes(params = {}, options = {})
  req = build_request(:get_queue_attributes, params)
  req.send_request(options)
end
get_queue_url(params = {}, options = {}) click to toggle source

Returns the URL of an existing Amazon SQS queue.

To access a queue that belongs to another AWS account, use the `QueueOwnerAWSAccountId` parameter to specify the account ID of the queue's owner. The queue's owner must grant you permission to access the queue. For more information about shared queue access, see ` AddPermission ` or see [Allow Developers to Write Messages to a Shared Queue] in the *Amazon SQS Developer Guide*.

[1]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-writing-an-sqs-policy.html#write-messages-to-shared-queue

@option params [required, String] :queue_name

The name of the queue whose URL must be fetched. Maximum 80
characters. Valid values: alphanumeric characters, hyphens (`-`), and
underscores (`_`).

Queue URLs and names are case-sensitive.

@option params [String] :queue_owner_aws_account_id

The account ID of the account that created the queue.

@return [Types::GetQueueUrlResult] Returns a {Seahorse::Client::Response response} object which responds to the following methods:

* {Types::GetQueueUrlResult#queue_url #queue_url} => String

@example Request syntax with placeholder values

resp = client.get_queue_url({
  queue_name: "String", # required
  queue_owner_aws_account_id: "String",
})

@example Response structure

resp.queue_url #=> String

@see docs.aws.amazon.com/goto/WebAPI/sqs-2012-11-05/GetQueueUrl AWS API Documentation

@overload get_queue_url(params = {}) @param [Hash] params ({})

# File lib/aws-sdk-sqs/client.rb, line 1349
def get_queue_url(params = {}, options = {})
  req = build_request(:get_queue_url, params)
  req.send_request(options)
end
list_dead_letter_source_queues(params = {}, options = {}) click to toggle source

Returns a list of your queues that have the `RedrivePolicy` queue attribute configured with a dead-letter queue.

The `ListDeadLetterSourceQueues` methods supports pagination. Set parameter `MaxResults` in the request to specify the maximum number of results to be returned in the response. If you do not set `MaxResults`, the response includes a maximum of 1,000 results. If you set `MaxResults` and there are additional results to display, the response includes a value for `NextToken`. Use `NextToken` as a parameter in your next request to `ListDeadLetterSourceQueues` to receive the next page of results.

For more information about using dead-letter queues, see [Using Amazon SQS Dead-Letter Queues] in the *Amazon SQS Developer Guide*.

[1]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-dead-letter-queues.html

@option params [required, String] :queue_url

The URL of a dead-letter queue.

Queue URLs and names are case-sensitive.

@option params [String] :next_token

Pagination token to request the next set of results.

@option params [Integer] :max_results

Maximum number of results to include in the response. Value range is 1
to 1000. You must set `MaxResults` to receive a value for `NextToken`
in the response.

@return [Types::ListDeadLetterSourceQueuesResult] Returns a {Seahorse::Client::Response response} object which responds to the following methods:

* {Types::ListDeadLetterSourceQueuesResult#queue_urls #queue_urls} => Array&lt;String&gt;
* {Types::ListDeadLetterSourceQueuesResult#next_token #next_token} => String

The returned {Seahorse::Client::Response response} is a pageable response and is Enumerable. For details on usage see {Aws::PageableResponse PageableResponse}.

@example Request syntax with placeholder values

resp = client.list_dead_letter_source_queues({
  queue_url: "String", # required
  next_token: "Token",
  max_results: 1,
})

@example Response structure

resp.queue_urls #=> Array
resp.queue_urls[0] #=> String
resp.next_token #=> String

@see docs.aws.amazon.com/goto/WebAPI/sqs-2012-11-05/ListDeadLetterSourceQueues AWS API Documentation

@overload list_dead_letter_source_queues(params = {}) @param [Hash] params ({})

# File lib/aws-sdk-sqs/client.rb, line 1411
def list_dead_letter_source_queues(params = {}, options = {})
  req = build_request(:list_dead_letter_source_queues, params)
  req.send_request(options)
end
list_queue_tags(params = {}, options = {}) click to toggle source

List all cost allocation tags added to the specified Amazon SQS queue. For an overview, see [Tagging Your Amazon SQS Queues] in the *Amazon SQS Developer Guide*.

<note markdown=“1”> Cross-account permissions don't apply to this action. For more information, see [Grant cross-account permissions to a role and a user name] in the *Amazon SQS Developer Guide*.

</note>

[1]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-queue-tags.html [2]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-customer-managed-policy-examples.html#grant-cross-account-permissions-to-role-and-user-name

@option params [required, String] :queue_url

The URL of the queue.

@return [Types::ListQueueTagsResult] Returns a {Seahorse::Client::Response response} object which responds to the following methods:

* {Types::ListQueueTagsResult#tags #tags} => Hash&lt;String,String&gt;

@example Request syntax with placeholder values

resp = client.list_queue_tags({
  queue_url: "String", # required
})

@example Response structure

resp.tags #=> Hash
resp.tags["TagKey"] #=> String

@see docs.aws.amazon.com/goto/WebAPI/sqs-2012-11-05/ListQueueTags AWS API Documentation

@overload list_queue_tags(params = {}) @param [Hash] params ({})

# File lib/aws-sdk-sqs/client.rb, line 1453
def list_queue_tags(params = {}, options = {})
  req = build_request(:list_queue_tags, params)
  req.send_request(options)
end
list_queues(params = {}, options = {}) click to toggle source

Returns a list of your queues in the current region. The response includes a maximum of 1,000 results. If you specify a value for the optional `QueueNamePrefix` parameter, only queues with a name that begins with the specified value are returned.

The `listQueues` methods supports pagination. Set parameter `MaxResults` in the request to specify the maximum number of results to be returned in the response. If you do not set `MaxResults`, the response includes a maximum of 1,000 results. If you set `MaxResults` and there are additional results to display, the response includes a value for `NextToken`. Use `NextToken` as a parameter in your next request to `listQueues` to receive the next page of results.

<note markdown=“1”> Cross-account permissions don't apply to this action. For more information, see [Grant cross-account permissions to a role and a user name] in the *Amazon SQS Developer Guide*.

</note>

[1]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-customer-managed-policy-examples.html#grant-cross-account-permissions-to-role-and-user-name

@option params [String] :queue_name_prefix

A string to use for filtering the list results. Only those queues
whose name begins with the specified string are returned.

Queue URLs and names are case-sensitive.

@option params [String] :next_token

Pagination token to request the next set of results.

@option params [Integer] :max_results

Maximum number of results to include in the response. Value range is 1
to 1000. You must set `MaxResults` to receive a value for `NextToken`
in the response.

@return [Types::ListQueuesResult] Returns a {Seahorse::Client::Response response} object which responds to the following methods:

* {Types::ListQueuesResult#queue_urls #queue_urls} => Array&lt;String&gt;
* {Types::ListQueuesResult#next_token #next_token} => String

The returned {Seahorse::Client::Response response} is a pageable response and is Enumerable. For details on usage see {Aws::PageableResponse PageableResponse}.

@example Request syntax with placeholder values

resp = client.list_queues({
  queue_name_prefix: "String",
  next_token: "Token",
  max_results: 1,
})

@example Response structure

resp.queue_urls #=> Array
resp.queue_urls[0] #=> String
resp.next_token #=> String

@see docs.aws.amazon.com/goto/WebAPI/sqs-2012-11-05/ListQueues AWS API Documentation

@overload list_queues(params = {}) @param [Hash] params ({})

# File lib/aws-sdk-sqs/client.rb, line 1520
def list_queues(params = {}, options = {})
  req = build_request(:list_queues, params)
  req.send_request(options)
end
purge_queue(params = {}, options = {}) click to toggle source

Deletes the messages in a queue specified by the `QueueURL` parameter.

When you use the `PurgeQueue` action, you can't retrieve any messages deleted from a queue.

The message deletion process takes up to 60 seconds. We recommend

waiting for 60 seconds regardless of your queue's size.

Messages sent to the queue before you call `PurgeQueue` might be received but are deleted within the next minute.

Messages sent to the queue after you call `PurgeQueue` might be deleted while the queue is being purged.

@option params [required, String] :queue_url

The URL of the queue from which the `PurgeQueue` action deletes
messages.

Queue URLs and names are case-sensitive.

@return [Struct] Returns an empty {Seahorse::Client::Response response}.

@example Request syntax with placeholder values

resp = client.purge_queue({
  queue_url: "String", # required
})

@see docs.aws.amazon.com/goto/WebAPI/sqs-2012-11-05/PurgeQueue AWS API Documentation

@overload purge_queue(params = {}) @param [Hash] params ({})

# File lib/aws-sdk-sqs/client.rb, line 1557
def purge_queue(params = {}, options = {})
  req = build_request(:purge_queue, params)
  req.send_request(options)
end
receive_message(params = {}, options = {}) click to toggle source

Retrieves one or more messages (up to 10), from the specified queue. Using the `WaitTimeSeconds` parameter enables long-poll support. For more information, see [Amazon SQS Long Polling] in the *Amazon SQS Developer Guide*.

Short poll is the default behavior where a weighted random set of machines is sampled on a `ReceiveMessage` call. Thus, only the messages on the sampled machines are returned. If the number of messages in the queue is small (fewer than 1,000), you most likely get fewer messages than you requested per `ReceiveMessage` call. If the number of messages in the queue is extremely small, you might not receive any messages in a particular `ReceiveMessage` response. If this happens, repeat the request.

For each message returned, the response includes the following:

  • The message body.

  • An MD5 digest of the message body. For information about MD5, see [RFC1321].

  • The `MessageId` you received when you sent the message to the queue.

  • The receipt handle.

  • The message attributes.

  • An MD5 digest of the message attributes.

The receipt handle is the identifier you must provide when deleting the message. For more information, see [Queue and Message Identifiers] in the *Amazon SQS Developer Guide*.

You can provide the `VisibilityTimeout` parameter in your request. The parameter is applied to the messages that Amazon SQS returns in the response. If you don't include the parameter, the overall visibility timeout for the queue is used for the returned messages. For more information, see [Visibility Timeout] in the *Amazon SQS Developer Guide*.

A message that isn't deleted or a message whose visibility isn't extended before the visibility timeout expires counts as a failed receive. Depending on the configuration of the queue, the message might be sent to the dead-letter queue.

<note markdown=“1”> In the future, new attributes might be added. If you write code that calls this action, we recommend that you structure your code so that it can handle new attributes gracefully.

</note>

[1]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-long-polling.html [2]: www.ietf.org/rfc/rfc1321.txt [3]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-queue-message-identifiers.html [4]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-visibility-timeout.html

@option params [required, String] :queue_url

The URL of the Amazon SQS queue from which messages are received.

Queue URLs and names are case-sensitive.

@option params [Array<String>] :attribute_names

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][1] 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 an IAM user, returns the IAM 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][1] in milliseconds).

* `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.

[1]: http://en.wikipedia.org/wiki/Unix_time

@option params [Array<String>] :message_attribute_names

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.*`.

@option params [Integer] :max_number_of_messages

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.

@option params [Integer] :visibility_timeout

The duration (in seconds) that the received messages are hidden from
subsequent retrieve requests after being retrieved by a
`ReceiveMessage` request.

@option params [Integer] :wait_time_seconds

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][1] for asynchronous
clients, or the [ ApacheHttpClient][2] for synchronous clients.

[1]: https://sdk.amazonaws.com/java/api/latest/software/amazon/awssdk/http/nio/netty/NettyNioAsyncHttpClient.html
[2]: https://sdk.amazonaws.com/java/api/latest/software/amazon/awssdk/http/apache/ApacheHttpClient.html

@option params [String] :receive_request_attempt_id

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][1] 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][2] in the *Amazon SQS
Developer Guide*.

[1]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-visibility-timeout.html
[2]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/using-receiverequestattemptid-request-parameter.html

@return [Types::ReceiveMessageResult] Returns a {Seahorse::Client::Response response} object which responds to the following methods:

* {Types::ReceiveMessageResult#messages #messages} => Array&lt;Types::Message&gt;

@example Request syntax with placeholder values

resp = client.receive_message({
  queue_url: "String", # required
  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
  message_attribute_names: ["MessageAttributeName"],
  max_number_of_messages: 1,
  visibility_timeout: 1,
  wait_time_seconds: 1,
  receive_request_attempt_id: "String",
})

@example Response structure

resp.messages #=> Array
resp.messages[0].message_id #=> String
resp.messages[0].receipt_handle #=> String
resp.messages[0].md5_of_body #=> String
resp.messages[0].body #=> String
resp.messages[0].attributes #=> Hash
resp.messages[0].attributes["MessageSystemAttributeName"] #=> String
resp.messages[0].md5_of_message_attributes #=> String
resp.messages[0].message_attributes #=> Hash
resp.messages[0].message_attributes["String"].string_value #=> String
resp.messages[0].message_attributes["String"].binary_value #=> String
resp.messages[0].message_attributes["String"].string_list_values #=> Array
resp.messages[0].message_attributes["String"].string_list_values[0] #=> String
resp.messages[0].message_attributes["String"].binary_list_values #=> Array
resp.messages[0].message_attributes["String"].binary_list_values[0] #=> String
resp.messages[0].message_attributes["String"].data_type #=> String

@see docs.aws.amazon.com/goto/WebAPI/sqs-2012-11-05/ReceiveMessage AWS API Documentation

@overload receive_message(params = {}) @param [Hash] params ({})

# File lib/aws-sdk-sqs/client.rb, line 1817
def receive_message(params = {}, options = {})
  req = build_request(:receive_message, params)
  req.send_request(options)
end
remove_permission(params = {}, options = {}) click to toggle source

Revokes any permissions in the queue policy that matches the specified `Label` parameter.

<note markdown=“1”> * Only the owner of a queue can remove permissions from it.

  • Cross-account permissions don't apply to this action. For more information, see [Grant cross-account permissions to a role and a user name] in the *Amazon SQS Developer Guide*.

  • To remove the ability to change queue permissions, you must deny permission to the `AddPermission`, `RemovePermission`, and `SetQueueAttributes` actions in your IAM policy.

</note>

[1]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-customer-managed-policy-examples.html#grant-cross-account-permissions-to-role-and-user-name

@option params [required, String] :queue_url

The URL of the Amazon SQS queue from which permissions are removed.

Queue URLs and names are case-sensitive.

@option params [required, String] :label

The identification of the permission to remove. This is the label
added using the ` AddPermission ` action.

@return [Struct] Returns an empty {Seahorse::Client::Response response}.

@example Request syntax with placeholder values

resp = client.remove_permission({
  queue_url: "String", # required
  label: "String", # required
})

@see docs.aws.amazon.com/goto/WebAPI/sqs-2012-11-05/RemovePermission AWS API Documentation

@overload remove_permission(params = {}) @param [Hash] params ({})

# File lib/aws-sdk-sqs/client.rb, line 1863
def remove_permission(params = {}, options = {})
  req = build_request(:remove_permission, params)
  req.send_request(options)
end
send_message(params = {}, options = {}) click to toggle source

Delivers a message to the specified queue.

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].

[1]: www.w3.org/TR/REC-xml/#charsets

@option params [required, String] :queue_url

The URL of the Amazon SQS queue to which a message is sent.

Queue URLs and names are case-sensitive.

@option params [required, String] :message_body

The message to send. The minimum size is one character. The maximum
size is 256 KB.

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][1].

[1]: http://www.w3.org/TR/REC-xml/#charsets

@option params [Integer] :delay_seconds

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.

<note markdown="1"> When you set `FifoQueue`, you can't set `DelaySeconds` per message.
You can set this parameter only on a queue level.

 </note>

@option params [Hash<String,Types::MessageAttributeValue>] :message_attributes

Each message attribute consists of a `Name`, `Type`, and `Value`. For
more information, see [Amazon SQS message attributes][1] in the
*Amazon SQS Developer Guide*.

[1]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-message-metadata.html#sqs-message-attributes

@option params [Hash<String,Types::MessageSystemAttributeValue>] :message_system_attributes

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.

@option params [String] :message_deduplication_id

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][1] 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.

<note markdown="1"> 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.

 </note>

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][2] in the *Amazon SQS Developer
Guide*.

[1]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/FIFO-queues-exactly-once-processing.html
[2]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/using-messagededuplicationid-property.html

@option params [String] :message_group_id

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][1] in the *Amazon SQS Developer Guide*.

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

[1]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/using-messagegroupid-property.html

@return [Types::SendMessageResult] Returns a {Seahorse::Client::Response response} object which responds to the following methods:

* {Types::SendMessageResult#md5_of_message_body #md5_of_message_body} => String
* {Types::SendMessageResult#md5_of_message_attributes #md5_of_message_attributes} => String
* {Types::SendMessageResult#md5_of_message_system_attributes #md5_of_message_system_attributes} => String
* {Types::SendMessageResult#message_id #message_id} => String
* {Types::SendMessageResult#sequence_number #sequence_number} => String

@example Request syntax with placeholder values

resp = client.send_message({
  queue_url: "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",
})

@example Response structure

resp.md5_of_message_body #=> String
resp.md5_of_message_attributes #=> String
resp.md5_of_message_system_attributes #=> String
resp.message_id #=> String
resp.sequence_number #=> String

@see docs.aws.amazon.com/goto/WebAPI/sqs-2012-11-05/SendMessage AWS API Documentation

@overload send_message(params = {}) @param [Hash] params ({})

# File lib/aws-sdk-sqs/client.rb, line 2080
def send_message(params = {}, options = {})
  req = build_request(:send_message, params)
  req.send_request(options)
end
send_message_batch(params = {}, options = {}) click to toggle source

Delivers up to ten messages to the specified queue. This is a batch version of ` SendMessage.` For a FIFO queue, multiple messages within a single batch are enqueued in the order they are sent.

The result of sending each message is reported individually in the response. Because the batch request can result in a combination of successful and unsuccessful actions, you should check for batch errors even when the call returns an HTTP status code of `200`.

The maximum allowed individual message size and the maximum total payload size (the sum of the individual lengths of all of the batched messages) are both 256 KB (262,144 bytes).

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].

If you don't specify the `DelaySeconds` parameter for an entry, Amazon SQS uses the default value for the queue.

Some actions take lists of parameters. These lists are specified using the `param.n` notation. Values of `n` are integers starting from 1. For example, a parameter list with two elements looks like this:

`&AttributeName.1=first`

`&AttributeName.2=second`

[1]: www.w3.org/TR/REC-xml/#charsets

@option params [required, String] :queue_url

The URL of the Amazon SQS queue to which batched messages are sent.

Queue URLs and names are case-sensitive.

@option params [required, Array<Types::SendMessageBatchRequestEntry>] :entries

A list of ` SendMessageBatchRequestEntry ` items.

@return [Types::SendMessageBatchResult] Returns a {Seahorse::Client::Response response} object which responds to the following methods:

* {Types::SendMessageBatchResult#successful #successful} => Array&lt;Types::SendMessageBatchResultEntry&gt;
* {Types::SendMessageBatchResult#failed #failed} => Array&lt;Types::BatchResultErrorEntry&gt;

@example Request syntax with placeholder values

resp = client.send_message_batch({
  queue_url: "String", # required
  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",
    },
  ],
})

@example Response structure

resp.successful #=> Array
resp.successful[0].id #=> String
resp.successful[0].message_id #=> String
resp.successful[0].md5_of_message_body #=> String
resp.successful[0].md5_of_message_attributes #=> String
resp.successful[0].md5_of_message_system_attributes #=> String
resp.successful[0].sequence_number #=> String
resp.failed #=> Array
resp.failed[0].id #=> String
resp.failed[0].sender_fault #=> Boolean
resp.failed[0].code #=> String
resp.failed[0].message #=> String

@see docs.aws.amazon.com/goto/WebAPI/sqs-2012-11-05/SendMessageBatch AWS API Documentation

@overload send_message_batch(params = {}) @param [Hash] params ({})

# File lib/aws-sdk-sqs/client.rb, line 2187
def send_message_batch(params = {}, options = {})
  req = build_request(:send_message_batch, params)
  req.send_request(options)
end
set_queue_attributes(params = {}, options = {}) click to toggle source

Sets the value of one or more queue attributes. 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.

<note markdown=“1”> * In the future, new attributes might be added. If you write code that

calls this action, we recommend that you structure your code so that
it can handle new attributes gracefully.
  • Cross-account permissions don't apply to this action. For more information, see [Grant cross-account permissions to a role and a user name] in the *Amazon SQS Developer Guide*.

  • To remove the ability to change queue permissions, you must deny permission to the `AddPermission`, `RemovePermission`, and `SetQueueAttributes` actions in your IAM policy.

</note>

[1]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-customer-managed-policy-examples.html#grant-cross-account-permissions-to-role-and-user-name

@option params [required, String] :queue_url

The URL of the Amazon SQS queue whose attributes are set.

Queue URLs and names are case-sensitive.

@option params [required, Hash<String,String>] :attributes

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).

* `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][1] 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][2] in the *Amazon SQS Developer Guide*.

The following attributes apply only to [dead-letter queues:][3]

* `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. 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`.

<note markdown="1"> 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.

 </note>

The following attributes apply only to [server-side-encryption][4]\:

* `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][5]. 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][6] in the *Key Management Service API Reference*.

* `KmsDataKeyReusePeriodSeconds` – The length of time, in seconds, for
  which Amazon SQS can reuse a [data key][7] 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?][8].

The following attribute applies only to [FIFO (first-in-first-out)
queues][9]\:

* `ContentBasedDeduplication` – Enables content-based deduplication.
  For more information, see [Exactly-once processing][10] 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][11]\:

* `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][12] in the *Amazon SQS Developer Guide*.

[1]: https://docs.aws.amazon.com/IAM/latest/UserGuide/PoliciesOverview.html
[2]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-visibility-timeout.html
[3]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-dead-letter-queues.html
[4]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-server-side-encryption.html
[5]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-server-side-encryption.html#sqs-sse-key-terms
[6]: https://docs.aws.amazon.com/kms/latest/APIReference/API_DescribeKey.html#API_DescribeKey_RequestParameters
[7]: https://docs.aws.amazon.com/kms/latest/developerguide/concepts.html#data-keys
[8]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-server-side-encryption.html#sqs-how-does-the-data-key-reuse-period-work
[9]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/FIFO-queues.html
[10]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/FIFO-queues-exactly-once-processing.html
[11]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/high-throughput-fifo.html
[12]: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/quotas-messages.html

@return [Struct] Returns an empty {Seahorse::Client::Response response}.

@example Request syntax with placeholder values

resp = client.set_queue_attributes({
  queue_url: "String", # required
  attributes: { # required
    "All" => "String",
  },
})

@see docs.aws.amazon.com/goto/WebAPI/sqs-2012-11-05/SetQueueAttributes AWS API Documentation

@overload set_queue_attributes(params = {}) @param [Hash] params ({})

# File lib/aws-sdk-sqs/client.rb, line 2412
def set_queue_attributes(params = {}, options = {})
  req = build_request(:set_queue_attributes, params)
  req.send_request(options)
end
tag_queue(params = {}, options = {}) click to toggle source

Add cost allocation tags to the specified Amazon SQS queue. For an overview, see [Tagging Your Amazon SQS Queues] in the *Amazon SQS Developer Guide*.

When you use queue tags, keep the following guidelines in mind:

  • Adding more than 50 tags to a queue isn't recommended.

  • Tags don't have any semantic meaning. Amazon SQS interprets tags as character strings.

  • Tags are case-sensitive.

  • A new tag with a key identical to that of an existing tag overwrites the existing tag.

For a full list of tag restrictions, see [Quotas related to queues] in the *Amazon SQS Developer Guide*.

<note markdown=“1”> Cross-account permissions don't apply to this action. For more information, see [Grant cross-account permissions to a role and a user name] in the *Amazon SQS Developer Guide*.

</note>

[1]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-queue-tags.html [2]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-limits.html#limits-queues [3]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-customer-managed-policy-examples.html#grant-cross-account-permissions-to-role-and-user-name

@option params [required, String] :queue_url

The URL of the queue.

@option params [required, Hash<String,String>] :tags

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

@return [Struct] Returns an empty {Seahorse::Client::Response response}.

@example Request syntax with placeholder values

resp = client.tag_queue({
  queue_url: "String", # required
  tags: { # required
    "TagKey" => "TagValue",
  },
})

@see docs.aws.amazon.com/goto/WebAPI/sqs-2012-11-05/TagQueue AWS API Documentation

@overload tag_queue(params = {}) @param [Hash] params ({})

# File lib/aws-sdk-sqs/client.rb, line 2469
def tag_queue(params = {}, options = {})
  req = build_request(:tag_queue, params)
  req.send_request(options)
end
untag_queue(params = {}, options = {}) click to toggle source

Remove cost allocation tags from the specified Amazon SQS queue. For an overview, see [Tagging Your Amazon SQS Queues] in the *Amazon SQS Developer Guide*.

<note markdown=“1”> Cross-account permissions don't apply to this action. For more information, see [Grant cross-account permissions to a role and a user name] in the *Amazon SQS Developer Guide*.

</note>

[1]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-queue-tags.html [2]: docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-customer-managed-policy-examples.html#grant-cross-account-permissions-to-role-and-user-name

@option params [required, String] :queue_url

The URL of the queue.

@option params [required, Array<String>] :tag_keys

The list of tags to be removed from the specified queue.

@return [Struct] Returns an empty {Seahorse::Client::Response response}.

@example Request syntax with placeholder values

resp = client.untag_queue({
  queue_url: "String", # required
  tag_keys: ["TagKey"], # required
})

@see docs.aws.amazon.com/goto/WebAPI/sqs-2012-11-05/UntagQueue AWS API Documentation

@overload untag_queue(params = {}) @param [Hash] params ({})

# File lib/aws-sdk-sqs/client.rb, line 2508
def untag_queue(params = {}, options = {})
  req = build_request(:untag_queue, params)
  req.send_request(options)
end
waiter_names() click to toggle source

@api private @deprecated

# File lib/aws-sdk-sqs/client.rb, line 2532
def waiter_names
  []
end