The AWS SDK for JavaScript v2 has reached end-of-support.
We recommend that you migrate to AWS SDK for JavaScript v3. For additional details and information on how to migrate, please refer to the announcement.

Class: AWS.SQS

Inherits:
AWS.Service show all
Identifier:
sqs
API Version:
2012-11-05
Defined in:
(unknown)

Overview

Constructs a service interface object. Each API operation is exposed as a function on service.

Service Description

Welcome to the Amazon SQS API Reference.

Amazon SQS is a reliable, highly-scalable hosted queue for storing messages as they travel between applications or microservices. Amazon SQS moves data between distributed application components and helps you decouple these components.

For information on the permissions you need to use this API, see Identity and access management in the Amazon SQS Developer Guide.

You can use Amazon Web Services SDKs to access Amazon SQS using your favorite programming language. The SDKs perform tasks such as the following automatically:

  • Cryptographically sign your service requests

  • Retry requests

  • Handle error responses

Additional information

Sending a Request Using SQS

var sqs = new AWS.SQS();
sqs.addPermission(params, function (err, data) {
  if (err) console.log(err, err.stack); // an error occurred
  else     console.log(data);           // successful response
});

Locking the API Version

In order to ensure that the SQS object uses this specific API, you can construct the object by passing the apiVersion option to the constructor:

var sqs = new AWS.SQS({apiVersion: '2012-11-05'});

You can also set the API version globally in AWS.config.apiVersions using the sqs service identifier:

AWS.config.apiVersions = {
  sqs: '2012-11-05',
  // other service API versions
};

var sqs = new AWS.SQS();

Version:

  • 2012-11-05

Constructor Summary collapse

Property Summary collapse

Properties inherited from AWS.Service

apiVersions

Method Summary collapse

Methods inherited from AWS.Service

makeRequest, makeUnauthenticatedRequest, waitFor, defineService

Constructor Details

new AWS.SQS(options = {}) ⇒ Object

Constructs a service object. This object has one method for each API operation.

Examples:

Constructing a SQS object

var sqs = new AWS.SQS({apiVersion: '2012-11-05'});

Options Hash (options):

  • params (map)

    An optional map of parameters to bind to every request sent by this service object. For more information on bound parameters, see "Working with Services" in the Getting Started Guide.

  • endpoint (String|AWS.Endpoint)

    The endpoint URI to send requests to. The default endpoint is built from the configured region. The endpoint should be a string like 'https://{service}.{region}.amazonaws.com' or an Endpoint object.

  • accessKeyId (String)

    your AWS access key ID.

  • secretAccessKey (String)

    your AWS secret access key.

  • sessionToken (AWS.Credentials)

    the optional AWS session token to sign requests with.

  • credentials (AWS.Credentials)

    the AWS credentials to sign requests with. You can either specify this object, or specify the accessKeyId and secretAccessKey options directly.

  • credentialProvider (AWS.CredentialProviderChain)

    the provider chain used to resolve credentials if no static credentials property is set.

  • region (String)

    the region to send service requests to. See AWS.SQS.region for more information.

  • maxRetries (Integer)

    the maximum amount of retries to attempt with a request. See AWS.SQS.maxRetries for more information.

  • maxRedirects (Integer)

    the maximum amount of redirects to follow with a request. See AWS.SQS.maxRedirects for more information.

  • sslEnabled (Boolean)

    whether to enable SSL for requests.

  • paramValidation (Boolean|map)

    whether input parameters should be validated against the operation description before sending the request. Defaults to true. Pass a map to enable any of the following specific validation features:

    • min [Boolean] — Validates that a value meets the min constraint. This is enabled by default when paramValidation is set to true.
    • max [Boolean] — Validates that a value meets the max constraint.
    • pattern [Boolean] — Validates that a string value matches a regular expression.
    • enum [Boolean] — Validates that a string value matches one of the allowable enum values.
  • computeChecksums (Boolean)

    whether to compute checksums for payload bodies when the service accepts it (currently supported in S3 only)

  • convertResponseTypes (Boolean)

    whether types are converted when parsing response data. Currently only supported for JSON based services. Turning this off may improve performance on large response payloads. Defaults to true.

  • correctClockSkew (Boolean)

    whether to apply a clock skew correction and retry requests that fail because of an skewed client clock. Defaults to false.

  • s3ForcePathStyle (Boolean)

    whether to force path style URLs for S3 objects.

  • s3BucketEndpoint (Boolean)

    whether the provided endpoint addresses an individual bucket (false if it addresses the root API endpoint). Note that setting this configuration option requires an endpoint to be provided explicitly to the service constructor.

  • s3DisableBodySigning (Boolean)

    whether S3 body signing should be disabled when using signature version v4. Body signing can only be disabled when using https. Defaults to true.

  • s3UsEast1RegionalEndpoint ('legacy'|'regional')

    when region is set to 'us-east-1', whether to send s3 request to global endpoints or 'us-east-1' regional endpoints. This config is only applicable to S3 client. Defaults to legacy

  • s3UseArnRegion (Boolean)

    whether to override the request region with the region inferred from requested resource's ARN. Only available for S3 buckets Defaults to true

  • retryDelayOptions (map)

    A set of options to configure the retry delay on retryable errors. Currently supported options are:

    • base [Integer] — The base number of milliseconds to use in the exponential backoff for operation retries. Defaults to 100 ms for all services except DynamoDB, where it defaults to 50ms.
    • customBackoff [function] — A custom function that accepts a retry count and error and returns the amount of time to delay in milliseconds. If the result is a non-zero negative value, no further retry attempts will be made. The base option will be ignored if this option is supplied. The function is only called for retryable errors.
  • httpOptions (map)

    A set of options to pass to the low-level HTTP request. Currently supported options are:

    • proxy [String] — the URL to proxy requests through
    • agent [http.Agent, https.Agent] — the Agent object to perform HTTP requests with. Used for connection pooling. Defaults to the global agent (http.globalAgent) for non-SSL connections. Note that for SSL connections, a special Agent object is used in order to enable peer certificate verification. This feature is only available in the Node.js environment.
    • connectTimeout [Integer] — Sets the socket to timeout after failing to establish a connection with the server after connectTimeout milliseconds. This timeout has no effect once a socket connection has been established.
    • timeout [Integer] — Sets the socket to timeout after timeout milliseconds of inactivity on the socket. Defaults to two minutes (120000).
    • xhrAsync [Boolean] — Whether the SDK will send asynchronous HTTP requests. Used in the browser environment only. Set to false to send requests synchronously. Defaults to true (async on).
    • xhrWithCredentials [Boolean] — Sets the "withCredentials" property of an XMLHttpRequest object. Used in the browser environment only. Defaults to false.
  • apiVersion (String, Date)

    a String in YYYY-MM-DD format (or a date) that represents the latest possible API version that can be used in all services (unless overridden by apiVersions). Specify 'latest' to use the latest possible version.

  • apiVersions (map<String, String|Date>)

    a map of service identifiers (the lowercase service class name) with the API version to use when instantiating a service. Specify 'latest' for each individual that can use the latest available version.

  • logger (#write, #log)

    an object that responds to .write() (like a stream) or .log() (like the console object) in order to log information about requests

  • systemClockOffset (Number)

    an offset value in milliseconds to apply to all signing times. Use this to compensate for clock skew when your system may be out of sync with the service time. Note that this configuration option can only be applied to the global AWS.config object and cannot be overridden in service-specific configuration. Defaults to 0 milliseconds.

  • signatureVersion (String)

    the signature version to sign requests with (overriding the API configuration). Possible values are: 'v2', 'v3', 'v4'.

  • signatureCache (Boolean)

    whether the signature to sign requests with (overriding the API configuration) is cached. Only applies to the signature version 'v4'. Defaults to true.

  • dynamoDbCrc32 (Boolean)

    whether to validate the CRC32 checksum of HTTP response bodies returned by DynamoDB. Default: true.

  • useAccelerateEndpoint (Boolean)

    Whether to use the S3 Transfer Acceleration endpoint with the S3 service. Default: false.

  • clientSideMonitoring (Boolean)

    whether to collect and publish this client's performance metrics of all its API requests.

  • endpointDiscoveryEnabled (Boolean|undefined)

    whether to call operations with endpoints given by service dynamically. Setting this

  • endpointCacheSize (Number)

    the size of the global cache storing endpoints from endpoint discovery operations. Once endpoint cache is created, updating this setting cannot change existing cache size. Defaults to 1000

  • hostPrefixEnabled (Boolean)

    whether to marshal request parameters to the prefix of hostname. Defaults to true.

  • stsRegionalEndpoints ('legacy'|'regional')

    whether to send sts request to global endpoints or regional endpoints. Defaults to 'legacy'.

  • useFipsEndpoint (Boolean)

    Enables FIPS compatible endpoints. Defaults to false.

  • useDualstackEndpoint (Boolean)

    Enables IPv6 dualstack endpoint. Defaults to false.

Property Details

endpointAWS.Endpoint (readwrite)

Returns an Endpoint object representing the endpoint URL for service requests.

Returns:

  • (AWS.Endpoint)

    an Endpoint object representing the endpoint URL for service requests.

Method Details

addPermission(params = {}, callback) ⇒ AWS.Request

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:
  • 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 in the Amazon SQS Developer Guide.
  • An Amazon SQS policy can have a maximum of seven actions per statement.
  • To remove the ability to change queue permissions, you must deny permission to the AddPermission, RemovePermission, and SetQueueAttributes actions in your IAM policy.
  • Amazon SQS AddPermission does not support adding a non-account principal.
Note: Cross-account permissions don't apply to this action. For more information, see Grant cross-account permissions to a role and a username in the Amazon SQS Developer Guide.

Service Reference:

Examples:

Calling the addPermission operation

var params = {
  AWSAccountIds: [ /* required */
    'STRING_VALUE',
    /* more items */
  ],
  Actions: [ /* required */
    'STRING_VALUE',
    /* more items */
  ],
  Label: 'STRING_VALUE', /* required */
  QueueUrl: 'STRING_VALUE' /* required */
};
sqs.addPermission(params, function(err, data) {
  if (err) console.log(err, err.stack); // an error occurred
  else     console.log(data);           // successful response
});

Parameters:

  • params (Object) (defaults to: {})
    • QueueUrl — (String)

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

      Queue URLs and names are case-sensitive.

    • Label — (String)

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

    • AWSAccountIds — (Array<String>)

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

    • Actions — (Array<String>)

      The action the client wants to allow for the specified principal. Valid values: the name of any action or *.

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

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

Callback (callback):

  • function(err, data) { ... }

    Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.

    Context (this):

    • (AWS.Response)

      the response object containing error, data properties, and the original request object.

    Parameters:

    • err (Error)

      the error object returned from the request. Set to null if the request is successful.

    • data (Object)

      the de-serialized data returned from the request. Set to null if a request error occurs.

Returns:

  • (AWS.Request)

    a handle to the operation request for subsequent event callback registration.

cancelMessageMoveTask(params = {}, callback) ⇒ AWS.Request

Cancels a specified message movement task. A message movement can only be cancelled when the current status is RUNNING. Cancelling a message movement task does not revert the messages that have already been moved. It can only stop the messages that have not been moved yet.

Note:
  • This action is currently limited to supporting message redrive from dead-letter queues (DLQs) only. In this context, the source queue is the dead-letter queue (DLQ), while the destination queue can be the original source queue (from which the messages were driven to the dead-letter-queue), or a custom destination queue.
  • Only one active message movement task is supported per queue at any given time.

Service Reference:

Examples:

Calling the cancelMessageMoveTask operation

var params = {
  TaskHandle: 'STRING_VALUE' /* required */
};
sqs.cancelMessageMoveTask(params, function(err, data) {
  if (err) console.log(err, err.stack); // an error occurred
  else     console.log(data);           // successful response
});

Parameters:

  • params (Object) (defaults to: {})
    • TaskHandle — (String)

      An identifier associated with a message movement task.

Callback (callback):

  • function(err, data) { ... }

    Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.

    Context (this):

    • (AWS.Response)

      the response object containing error, data properties, and the original request object.

    Parameters:

    • err (Error)

      the error object returned from the request. Set to null if the request is successful.

    • data (Object)

      the de-serialized data returned from the request. Set to null if a request error occurs. The data object has the following properties:

      • ApproximateNumberOfMessagesMoved — (Integer)

        The approximate number of messages already moved to the destination queue.

Returns:

  • (AWS.Request)

    a handle to the operation request for subsequent event callback registration.

changeMessageVisibility(params = {}, callback) ⇒ AWS.Request

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, if the default timeout for a queue is 60 seconds, 15 seconds have elapsed since you received the message, and you send a ChangeMessageVisibility call with VisibilityTimeout set to 10 seconds, the 10 seconds begin to count from the time that you make the ChangeMessageVisibility call. Thus, any attempt to change the visibility timeout or to delete that message 10 seconds after you initially change the visibility timeout (a total of 25 seconds) might result in an error.

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 in flight messages.

Limits that apply to in flight 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 in flight 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 in flight 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.

Service Reference:

Examples:

Calling the changeMessageVisibility operation

var params = {
  QueueUrl: 'STRING_VALUE', /* required */
  ReceiptHandle: 'STRING_VALUE', /* required */
  VisibilityTimeout: 'NUMBER_VALUE' /* required */
};
sqs.changeMessageVisibility(params, function(err, data) {
  if (err) console.log(err, err.stack); // an error occurred
  else     console.log(data);           // successful response
});

Parameters:

  • params (Object) (defaults to: {})
    • QueueUrl — (String)

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

      Queue URLs and names are case-sensitive.

    • ReceiptHandle — (String)

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

    • VisibilityTimeout — (Integer)

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

Callback (callback):

  • function(err, data) { ... }

    Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.

    Context (this):

    • (AWS.Response)

      the response object containing error, data properties, and the original request object.

    Parameters:

    • err (Error)

      the error object returned from the request. Set to null if the request is successful.

    • data (Object)

      the de-serialized data returned from the request. Set to null if a request error occurs.

Returns:

  • (AWS.Request)

    a handle to the operation request for subsequent event callback registration.

changeMessageVisibilityBatch(params = {}, callback) ⇒ AWS.Request

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.

Service Reference:

Examples:

Calling the changeMessageVisibilityBatch operation

var params = {
  Entries: [ /* required */
    {
      Id: 'STRING_VALUE', /* required */
      ReceiptHandle: 'STRING_VALUE', /* required */
      VisibilityTimeout: 'NUMBER_VALUE'
    },
    /* more items */
  ],
  QueueUrl: 'STRING_VALUE' /* required */
};
sqs.changeMessageVisibilityBatch(params, function(err, data) {
  if (err) console.log(err, err.stack); // an error occurred
  else     console.log(data);           // successful response
});

Parameters:

  • params (Object) (defaults to: {})
    • QueueUrl — (String)

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

      Queue URLs and names are case-sensitive.

    • Entries — (Array<map>)

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

      • Idrequired — (String)

        An identifier for this particular receipt handle used to communicate the result.

        Note: The Ids of a batch request need to be unique within a request. This identifier can have up to 80 characters. The following characters are accepted: alphanumeric characters, hyphens(-), and underscores (_).
      • ReceiptHandlerequired — (String)

        A receipt handle.

      • VisibilityTimeout — (Integer)

        The new value (in seconds) for the message's visibility timeout.

Callback (callback):

  • function(err, data) { ... }

    Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.

    Context (this):

    • (AWS.Response)

      the response object containing error, data properties, and the original request object.

    Parameters:

    • err (Error)

      the error object returned from the request. Set to null if the request is successful.

    • data (Object)

      the de-serialized data returned from the request. Set to null if a request error occurs. The data object has the following properties:

      • Successful — (Array<map>)

        A list of ChangeMessageVisibilityBatchResultEntry items.

        • Idrequired — (String)

          Represents a message whose visibility timeout has been changed successfully.

      • Failed — (Array<map>)

        A list of BatchResultErrorEntry items.

        • Idrequired — (String)

          The Id of an entry in a batch request.

        • SenderFaultrequired — (Boolean)

          Specifies whether the error happened due to the caller of the batch API action.

        • Coderequired — (String)

          An error code representing why the action failed on this entry.

        • Message — (String)

          A message explaining why the action failed on this entry.

Returns:

  • (AWS.Request)

    a handle to the operation request for subsequent event callback registration.

createQueue(params = {}, callback) ⇒ AWS.Request

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: 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.
  • 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: After you create a queue, you must wait at least one second after the queue is created to be able to use the queue.

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.

Note: Cross-account permissions don't apply to this action. For more information, see Grant cross-account permissions to a role and a username in the Amazon SQS Developer Guide.

Service Reference:

Examples:

Calling the createQueue operation

var params = {
  QueueName: 'STRING_VALUE', /* required */
  Attributes: {
    '<QueueAttributeName>': 'STRING_VALUE',
    /* '<QueueAttributeName>': ... */
  },
  tags: {
    '<TagKey>': 'STRING_VALUE',
    /* '<TagKey>': ... */
  }
};
sqs.createQueue(params, function(err, data) {
  if (err) console.log(err, err.stack); // an error occurred
  else     console.log(data);           // successful response
});

Parameters:

  • params (Object) (defaults to: {})
    • QueueName — (String)

      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.

    • Attributes — (map<String>)

      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). When you change a queue's attributes, the change can take up to 60 seconds for most of the attributes to propagate throughout the Amazon SQS system. Changes made to the MessageRetentionPeriod attribute can take up to 15 minutes and will impact existing messages in the queue potentially causing them to be expired and deleted if the MessageRetentionPeriod is reduced below the age of existing messages.

      • Policy – The queue's policy. A valid Amazon Web Services policy. For more information about policy structure, see Overview of Amazon Web Services IAM Policies in the 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 in the Amazon SQS Developer Guide.

      The following attributes apply only to dead-letter queues:

      • RedrivePolicy – The string that includes the parameters for the dead-letter queue functionality of the source queue as a JSON object. The parameters are as follows:

        • deadLetterTargetArn – The Amazon Resource Name (ARN) of the dead-letter queue to which Amazon SQS moves messages after the value of maxReceiveCount is exceeded.

        • maxReceiveCount – The number of times a message is delivered to the source queue before being moved to the dead-letter queue. Default: 10. When the ReceiveCount for a message exceeds the maxReceiveCount for a queue, Amazon SQS moves the message to the dead-letter-queue.

      • RedriveAllowPolicy – The string that includes the parameters for the permissions for the dead-letter queue redrive permission and which source queues can specify dead-letter queues as a JSON object. The parameters are as follows:

        • redrivePermission – The permission type that defines which source queues can specify the current queue as the dead-letter queue. Valid values are:

          • allowAll – (Default) Any source queues in this Amazon Web Services account in the same Region can specify this queue as the dead-letter queue.

          • denyAll – No source queues can specify this queue as the dead-letter queue.

          • byQueue – Only queues specified by the sourceQueueArns parameter can specify this queue as the dead-letter queue.

        • sourceQueueArns – The Amazon Resource Names (ARN)s of the source queues that can specify this queue as the dead-letter queue and redrive messages. You can specify this parameter only when the redrivePermission parameter is set to byQueue. You can specify up to 10 source queue ARNs. To allow more than 10 source queues to specify dead-letter queues, set the redrivePermission parameter to allowAll.

      Note: The dead-letter queue of a FIFO queue must also be a FIFO queue. Similarly, the dead-letter queue of a standard queue must also be a standard queue.

      The following attributes apply only to server-side-encryption:

      • KmsMasterKeyId – The ID of an Amazon Web Services managed customer master key (CMK) for Amazon SQS or a custom CMK. For more information, see Key Terms. While the alias of the 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 in the Key Management Service API Reference.

      • KmsDataKeyReusePeriodSeconds – The length of time, in seconds, for which Amazon SQS can reuse a data key to encrypt or decrypt messages before calling KMS again. An integer representing seconds, between 60 seconds (1 minute) and 86,400 seconds (24 hours). Default: 300 (5 minutes). A shorter time period provides better security but results in more calls to KMS which might incur charges after Free Tier. For more information, see How Does the Data Key Reuse Period Work?

      • SqsManagedSseEnabled – Enables server-side queue encryption using SQS owned encryption keys. Only one server-side encryption option is supported per queue (for example, SSE-KMS or SSE-SQS).

      The following attributes apply only to FIFO (first-in-first-out) queues:

      • 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 in the Amazon SQS Developer Guide.

      • ContentBasedDeduplication – Enables content-based deduplication. Valid values are true and false. For more information, see Exactly-once processing in the Amazon SQS Developer Guide. Note the following:

        • Every message must have a unique MessageDeduplicationId.

          • You may provide a MessageDeduplicationId explicitly.

          • If you aren't able to provide a MessageDeduplicationId and you enable ContentBasedDeduplication for your queue, Amazon SQS uses a SHA-256 hash to generate the MessageDeduplicationId using the body of the message (but not the attributes of the message).

          • If you don't provide a MessageDeduplicationId and the queue doesn't have ContentBasedDeduplication set, the action fails with an error.

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

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

        • If you send one message with ContentBasedDeduplication enabled and then another message with a MessageDeduplicationId that is the same as the one generated for the first MessageDeduplicationId, the two messages are treated as duplicates and only one copy of the message is delivered.

      The following attributes apply only to high throughput for FIFO queues:

      • DeduplicationScope – Specifies whether message deduplication occurs at the message group or queue level. Valid values are messageGroup and queue.

      • FifoThroughputLimit – Specifies whether the FIFO queue throughput quota applies to the entire queue or per message group. Valid values are perQueue and perMessageGroupId. The perMessageGroupId value is allowed only when the value for DeduplicationScope is messageGroup.

      To enable high throughput for FIFO queues, do the following:

      • Set DeduplicationScope to messageGroup.

      • Set FifoThroughputLimit to perMessageGroupId.

      If you set these attributes to anything other than the values shown for enabling high throughput, normal throughput is in effect and deduplication occurs as specified.

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

    • tags — (map<String>)

      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: 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 username in the Amazon SQS Developer Guide.

Callback (callback):

  • function(err, data) { ... }

    Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.

    Context (this):

    • (AWS.Response)

      the response object containing error, data properties, and the original request object.

    Parameters:

    • err (Error)

      the error object returned from the request. Set to null if the request is successful.

    • data (Object)

      the de-serialized data returned from the request. Set to null if a request error occurs. The data object has the following properties:

      • QueueUrl — (String)

        The URL of the created Amazon SQS queue.

Returns:

  • (AWS.Request)

    a handle to the operation request for subsequent event callback registration.

deleteMessage(params = {}, callback) ⇒ AWS.Request

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: 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 will 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.

Service Reference:

Examples:

Calling the deleteMessage operation

var params = {
  QueueUrl: 'STRING_VALUE', /* required */
  ReceiptHandle: 'STRING_VALUE' /* required */
};
sqs.deleteMessage(params, function(err, data) {
  if (err) console.log(err, err.stack); // an error occurred
  else     console.log(data);           // successful response
});

Parameters:

  • params (Object) (defaults to: {})
    • QueueUrl — (String)

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

      Queue URLs and names are case-sensitive.

    • ReceiptHandle — (String)

      The receipt handle associated with the message to delete.

Callback (callback):

  • function(err, data) { ... }

    Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.

    Context (this):

    • (AWS.Response)

      the response object containing error, data properties, and the original request object.

    Parameters:

    • err (Error)

      the error object returned from the request. Set to null if the request is successful.