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    A construct for a complaince SQS queue which is suitable for use as a DeadLetterQueue. Specifically, we suppress the Nag which requires a Queue to have a DLQ.

    Hierarchy (View Summary)

    Index

    Constructors

    Properties

    autoCreatePolicy: true

    Controls automatic creation of policy objects.

    Set by subclasses.

    deadLetterQueue?: DeadLetterQueue

    If this queue is configured with a dead-letter queue, this is the dead-letter queue settings.

    encryptionMasterKey?: IKey

    If this queue is encrypted, this is the KMS key.

    encryptionType?: QueueEncryption

    Whether the contents of the queue are encrypted, and by what type of key.

    env: ResourceEnvironment

    The environment this resource belongs to. For resources that are created and managed by the CDK (generally, those created by creating new class instances like Role, Bucket, etc.), this is always the same as the environment of the stack they belong to; however, for imported resources (those obtained from static methods like fromRoleArn, fromBucketName, etc.), that might be different than the stack they were imported into.

    fifo: boolean

    Whether this queue is an Amazon SQS FIFO queue. If false, this is a standard queue.

    node: Node

    The tree node.

    physicalName: string

    Returns a string-encoded token that resolves to the physical name that should be passed to the CloudFormation resource.

    This value will resolve to one of the following:

    • a concrete value (e.g. "my-awesome-bucket")
    • undefined, when a name should be generated by CloudFormation
    • a concrete name generated automatically during synthesis, in cross-environment scenarios.
    queueArn: string

    The ARN of this queue

    queueName: string

    The name of this queue

    queueUrl: string

    The URL of this queue

    stack: Stack

    The stack in which this resource is defined.

    PROPERTY_INJECTION_ID: string

    Uniquely identifies this class.

    Methods

    • Internal

      Called when this resource is referenced across environments (account/region) to order to request that a physical name will be generated for this resource during synthesis, so the resource can be referenced through its absolute name/arn.

      Returns void

    • Adds a statement to the IAM resource policy associated with this queue.

      If this queue was created in this stack (new Queue), a queue policy will be automatically created upon the first call to addToPolicy. If the queue is imported (Queue.import), then this is a no-op.

      Parameters

      • statement: PolicyStatement

      Returns AddToResourcePolicyResult

    • Apply the given removal policy to this resource

      The Removal Policy controls what happens to this resource when it stops being managed by CloudFormation, either because you've removed it from the CDK application or because you've made a change that requires the resource to be replaced.

      The resource can be deleted (RemovalPolicy.DESTROY), or left in your AWS account for data recovery and cleanup later (RemovalPolicy.RETAIN).

      Parameters

      • policy: RemovalPolicy

      Returns void

    • Returns an environment-sensitive token that should be used for the resource's "ARN" attribute (e.g. bucket.bucketArn).

      Normally, this token will resolve to arnAttr, but if the resource is referenced across environments, arnComponents will be used to synthesize a concrete ARN with the resource's physical name. Make sure to reference this.physicalName in arnComponents.

      Parameters

      • arnAttr: string

        The CFN attribute which resolves to the ARN of the resource. Commonly it will be called "Arn" (e.g. resource.attrArn), but sometimes it's the CFN resource's ref.

      • arnComponents: ArnComponents

        The format of the ARN of this resource. You must reference this.physicalName somewhere within the ARN in order for cross-environment references to work.

      Returns string

    • Returns an environment-sensitive token that should be used for the resource's "name" attribute (e.g. bucket.bucketName).

      Normally, this token will resolve to nameAttr, but if the resource is referenced across environments, it will be resolved to this.physicalName, which will be a concrete name.

      Parameters

      • nameAttr: string

        The CFN attribute which resolves to the resource's name. Commonly this is the resource's ref.

      Returns string

    • Grant the actions defined in queueActions to the identity Principal given on this SQS queue resource.

      Parameters

      • grantee: IGrantable

        Principal to grant right to

      • ...actions: string[]

        The actions to grant

      Returns Grant

    • Grant permissions to consume messages from a queue

      This will grant the following permissions:

      • sqs:ChangeMessageVisibility
      • sqs:DeleteMessage
      • sqs:ReceiveMessage
      • sqs:GetQueueAttributes
      • sqs:GetQueueUrl

      If encryption is used, permission to use the key to decrypt the contents of the queue will also be granted to the same principal.

      This will grant the following KMS permissions:

      • kms:Decrypt

      Parameters

      • grantee: IGrantable

        Principal to grant consume rights to

      Returns Grant

    • Grant an IAM principal permissions to purge all messages from the queue.

      This will grant the following permissions:

      • sqs:PurgeQueue
      • sqs:GetQueueAttributes
      • sqs:GetQueueUrl

      Parameters

      • grantee: IGrantable

        Principal to grant send rights to

      Returns Grant

    • Grant access to send messages to a queue to the given identity.

      This will grant the following permissions:

      • sqs:SendMessage
      • sqs:GetQueueAttributes
      • sqs:GetQueueUrl

      If encryption is used, permission to use the key to encrypt/decrypt the contents of the queue will also be granted to the same principal.

      This will grant the following KMS permissions:

      • kms:Decrypt
      • kms:Encrypt
      • kms:ReEncrypt*
      • kms:GenerateDataKey*

      Parameters

      • grantee: IGrantable

        Principal to grant send rights to

      Returns Grant

    • Return the given named metric for this Queue

      Parameters

      • metricName: string
      • Optionalprops: MetricOptions

      Returns Metric

    • The approximate age of the oldest non-deleted message in the queue.

      Maximum over 5 minutes

      Parameters

      • Optionalprops: MetricOptions

      Returns Metric

    • The number of messages in the queue that are delayed and not available for reading immediately.

      Maximum over 5 minutes

      Parameters

      • Optionalprops: MetricOptions

      Returns Metric

    • The number of messages that are in flight.

      Maximum over 5 minutes

      Parameters

      • Optionalprops: MetricOptions

      Returns Metric

    • The number of messages available for retrieval from the queue.

      Maximum over 5 minutes

      Parameters

      • Optionalprops: MetricOptions

      Returns Metric

    • The number of ReceiveMessage API calls that did not return a message.

      Sum over 5 minutes

      Parameters

      • Optionalprops: MetricOptions

      Returns Metric

    • The number of messages deleted from the queue.

      Sum over 5 minutes

      Parameters

      • Optionalprops: MetricOptions

      Returns Metric

    • The number of messages returned by calls to the ReceiveMessage action.

      Sum over 5 minutes

      Parameters

      • Optionalprops: MetricOptions

      Returns Metric

    • The number of messages added to a queue.

      Sum over 5 minutes

      Parameters

      • Optionalprops: MetricOptions

      Returns Metric

    • The size of messages added to a queue.

      Average over 5 minutes

      Parameters

      • Optionalprops: MetricOptions

      Returns Metric

    • Returns a string representation of this construct.

      Returns string

    • Import an existing SQS queue provided an ARN

      Parameters

      • scope: Construct

        The parent creating construct

      • id: string

        The construct's name

      • queueArn: string

        queue ARN (i.e. arn:aws:sqs:us-east-2:444455556666:queue1)

      Returns IQueue

    • Import an existing queue

      Parameters

      • scope: Construct
      • id: string
      • attrs: QueueAttributes

      Returns IQueue

    • Checks if x is a construct.

      Use this method instead of instanceof to properly detect Construct instances, even when the construct library is symlinked.

      Explanation: in JavaScript, multiple copies of the constructs library on disk are seen as independent, completely different libraries. As a consequence, the class Construct in each copy of the constructs library is seen as a different class, and an instance of one class will not test as instanceof the other class. npm install will not create installations like this, but users may manually symlink construct libraries together or use a monorepo tool: in those cases, multiple copies of the constructs library can be accidentally installed, and instanceof will behave unpredictably. It is safest to avoid using instanceof, and using this type-testing method instead.

      Parameters

      • x: any

        Any object

      Returns x is Construct

      true if x is an object created from a class which extends Construct.

    • Returns true if the construct was created by CDK, and false otherwise

      Parameters

      • construct: IConstruct

      Returns boolean

    • Check whether the given construct is a Resource

      Parameters

      • construct: IConstruct

      Returns construct is Resource