TSQSQueuePoller

Class in AWS.SQS

A utility class for long polling messages in a loop.

var QueueUrl := 'https://...'; var Poller = TSQSQueuePoller.Create(QueueUrl) as ISQSQueuePoller; Poller.Poll( procedure(const AMessages: TSQSMessages) begin // Do something with AMessages. end ); )

Messages are automatically deleted from the queue at the end of the given Poll procedure. Use SkipDelete property to change this behaviour.

Ancestors

• ISQSQueuePoller

Properties

AttributeNames

property AttributeNames: TList<string>

IdleTimeout

property IdleTimeout: TOptional<Integer>

MaxNumberOfMessages

property MaxNumberOfMessages: TOptional<Integer>

MessageAttributeNames

property MessageAttributeNames: TList<string>

OnBeforeRequest

property OnBeforeRequest: TSQSQueuePollerBeforeRequestHandler

SkipDelete

property SkipDelete: Boolean

VisibilityTimeout

property VisibilityTimeout: TOptional<Integer>

WaitTimeSeconds

property WaitTimeSeconds: TOptional<Integer>

Constructors

Create

constructor Create(const AQueueUrl: string; AClient: ISQSClient = nil);

ISQSClient

Constructor for TSQSQueuePoller.

Parameters

Name	Description
AQueueUrl	Specify the URL of the queue to poll. Required.
AClient	Optionally specify a pre-configured SQS client.