Class: AWS.SQS
- Inherits:
-
AWS.Service
- Object
- AWS.Service
- AWS.SQS
- 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
-
Amazon SQS Developer Guide
-
Amazon Web Services General Reference
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();
Constructor Summary collapse
-
new AWS.SQS(options = {}) ⇒ Object
constructor
Constructs a service object.
Property Summary collapse
-
endpoint ⇒ AWS.Endpoint
readwrite
An Endpoint object representing the endpoint URL for service requests.
Properties inherited from AWS.Service
Method Summary collapse
-
addPermission(params = {}, callback) ⇒ AWS.Request
Adds a permission to a queue for a specific principal.
-
cancelMessageMoveTask(params = {}, callback) ⇒ AWS.Request
Cancels a specified message movement task.
-
changeMessageVisibility(params = {}, callback) ⇒ AWS.Request
Changes the visibility timeout of a specified message in a queue to a new value.
-
changeMessageVisibilityBatch(params = {}, callback) ⇒ AWS.Request
Changes the visibility timeout of multiple messages.
-
createQueue(params = {}, callback) ⇒ AWS.Request
Creates a new standard or FIFO queue.
-
deleteMessage(params = {}, callback) ⇒ AWS.Request
Deletes the specified message from the specified queue.
-
deleteMessageBatch(params = {}, callback) ⇒ AWS.Request
Deletes up to ten messages from the specified queue.
-
deleteQueue(params = {}, callback) ⇒ AWS.Request
Deletes the queue specified by the
QueueUrl, regardless of the queue's contents.Be careful with the
DeleteQueueaction: When you delete a queue, any messages in the queue are no longer available. -
getQueueAttributes(params = {}, callback) ⇒ AWS.Request
Gets attributes for the specified queue.
Note: To determine whether a queue is FIFO, you can check whetherQueueNameends with the.fifosuffix.- getQueueUrl(params = {}, callback) ⇒ AWS.Request
Returns the URL of an existing Amazon SQS queue.
To access a queue that belongs to another AWS account, use the
QueueOwnerAWSAccountIdparameter to specify the account ID of the queue's owner.- listDeadLetterSourceQueues(params = {}, callback) ⇒ AWS.Request
Returns a list of your queues that have the
RedrivePolicyqueue attribute configured with a dead-letter queue.The
ListDeadLetterSourceQueuesmethods supports pagination.- listMessageMoveTasks(params = {}, callback) ⇒ AWS.Request
Gets the most recent message movement tasks (up to 10) under a specific source queue.
Note:- This action is currently limited to supporting message redrive from dead-letter queues (DLQs) only.
- listQueues(params = {}, callback) ⇒ AWS.Request
Returns a list of your queues in the current region.
- listQueueTags(params = {}, callback) ⇒ AWS.Request
List all cost allocation tags added to the specified Amazon SQS queue.
- purgeQueue(params = {}, callback) ⇒ AWS.Request
Deletes available messages in a queue (including in-flight messages) specified by the
QueueURLparameter.When you use the
PurgeQueueaction, you can't retrieve any messages deleted from a queue.The message deletion process takes up to 60 seconds.
- receiveMessage(params = {}, callback) ⇒ AWS.Request
Retrieves one or more messages (up to 10), from the specified queue.
- removePermission(params = {}, callback) ⇒ AWS.Request
Revokes any permissions in the queue policy that matches the specified
Labelparameter.Note:- Only the owner of a queue can remove permissions from it.
- sendMessage(params = {}, callback) ⇒ AWS.Request
Delivers a message to the specified queue.
A message can include only XML, JSON, and unformatted text.
- sendMessageBatch(params = {}, callback) ⇒ AWS.Request
You can use
SendMessageBatchto send up to 10 messages to the specified queue by assigning either identical or different values to each message (or by not assigning values at all).- setQueueAttributes(params = {}, callback) ⇒ AWS.Request
Sets the value of one or more queue attributes, like a policy.
- startMessageMoveTask(params = {}, callback) ⇒ AWS.Request
Starts an asynchronous task to move messages from a specified source queue to a specified destination queue.
Note:- This action is currently limited to supporting message redrive from queues that are configured as dead-letter queues (DLQs) of other Amazon SQS queues only.
- tagQueue(params = {}, callback) ⇒ AWS.Request
Add cost allocation tags to the specified Amazon SQS queue.
- untagQueue(params = {}, callback) ⇒ AWS.Request
Remove cost allocation tags from the specified Amazon SQS queue.
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.
Property Details
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:-
AddPermissiongenerates a policy for you. You can useSetQueueAttributesto 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, andSetQueueAttributesactions in your IAM policy. - Amazon SQS
AddPermissiondoes 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.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.
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
VisibilityTimeoutset to 10 seconds, the 10 seconds begin to count from the time that you make theChangeMessageVisibilitycall. 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:
-
Sent to a queue by a producer.
-
Received from the queue by a consumer.
-
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
OverLimiterror 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
VisibilityTimeoutto 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
ChangeMessageVisibilityaction) the next time the message is received.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 10ChangeMessageVisibilityrequests with eachChangeMessageVisibilityBatchaction.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.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
FifoQueueattribute, 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
GetQueueUrlaction.GetQueueUrlrequires only theQueueNameparameter. 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,
CreateQueuereturns the queue URL for the existing queue. -
If the queue name, attribute names, or attribute values don't match an existing queue,
CreateQueuereturns 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.deleteMessage(params = {}, callback) ⇒ AWS.Request
Deletes the specified message from the specified queue. To select the message to delete, use the
ReceiptHandleof the message (not theMessageIdwhich 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: TheReceiptHandleis associated with a specific instance of receiving a message. If you receive a message more than once, theReceiptHandleis different each time you receive a message. When you use theDeleteMessageaction, you must provide the most recently receivedReceiptHandlefor 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. - getQueueUrl(params = {}, callback) ⇒ AWS.Request