Paws::SQS::ReceiveMessage - Arguments for method ReceiveMessage on Paws::SQS
This class represents the parameters used for calling the method ReceiveMessage on the Amazon Simple Queue Service service. Use the attributes of this class as arguments to method ReceiveMessage.
You shouldn't make instances of this class. Each attribute should be used as a named argument in the call to ReceiveMessage.
my $sqs = Paws->service('SQS'); my $ReceiveMessageResult = $sqs->ReceiveMessage( QueueUrl => 'MyString', AttributeNames => [ 'SenderId', ... # values: SenderId, SentTimestamp, ApproximateReceiveCount, ApproximateFirstReceiveTimestamp ], # OPTIONAL MaxNumberOfMessages => 1, # OPTIONAL MessageAttributeNames => [ 'MyMessageAttributeName', ... ], # OPTIONAL ReceiveRequestAttemptId => 'MyString', # OPTIONAL VisibilityTimeout => 1, # OPTIONAL WaitTimeSeconds => 1, # OPTIONAL ); # Results: my $Messages = $ReceiveMessageResult->Messages; # Returns a L<Paws::SQS::ReceiveMessageResult> object.
Values for attributes that are native types (Int, String, Float, etc) can passed as-is (scalar values). Values for complex Types (objects) can be passed as a HashRef. The keys and values of the hashref will be used to instance the underlying object. For the AWS API documentation, see https://docs.aws.amazon.com/goto/WebAPI/sqs/ReceiveMessage
A list of attributes that need to be returned along with each message. These attributes include:
All – Returns all values.
All
ApproximateFirstReceiveTimestamp – Returns the time the message was first received from the queue (epoch time (http://en.wikipedia.org/wiki/Unix_time) in milliseconds).
ApproximateFirstReceiveTimestamp
ApproximateReceiveCount – Returns the number of times a message has been received across all queues but not deleted.
ApproximateReceiveCount
AWSTraceHeader – Returns the X-Ray trace header string.
AWSTraceHeader
SenderId
For an IAM user, returns the IAM user ID, for example ABCDEFGHI1JKLMNOPQ23R.
ABCDEFGHI1JKLMNOPQ23R
For an IAM role, returns the IAM role ID, for example ABCDE1F2GH3I4JK5LMNOP:i-a123b456.
ABCDE1F2GH3I4JK5LMNOP:i-a123b456
SentTimestamp – Returns the time the message was sent to the queue (epoch time (http://en.wikipedia.org/wiki/Unix_time) in milliseconds).
SentTimestamp
MessageDeduplicationId – Returns the value provided by the producer that calls the SendMessage action.
MessageDeduplicationId
SendMessage
MessageGroupId – Returns the value provided by the producer that calls the SendMessage action. Messages with the same MessageGroupId are returned in sequence.
MessageGroupId
SequenceNumber – Returns the value provided by Amazon SQS.
SequenceNumber
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.
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).
AWS.
Amazon.
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.*.
ReceiveMessage
.*
bar.*
The URL of the Amazon SQS queue from which messages are received.
Queue URLs and names are case-sensitive.
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.
ReceiveRequestAttemptId
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.
FifoQueue
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 (https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-visibility-timeout.html) 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 (!"#$%&'()*+,-./:;<=>?@[\]^_`{|}~).
a-z
A-Z
0-9
!"#$%&'()*+,-./:;<=>?@[\]^_`{|}~
For best practices of using ReceiveRequestAttemptId, see Using the ReceiveRequestAttemptId Request Parameter (https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/using-receiverequestattemptid-request-parameter.html) in the Amazon SQS Developer Guide.
The duration (in seconds) that the received messages are hidden from subsequent retrieve requests after being retrieved by a ReceiveMessage request.
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.
WaitTimeSeconds
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 (https://sdk.amazonaws.com/java/api/latest/software/amazon/awssdk/http/nio/netty/NettyNioAsyncHttpClient.html) for asynchronous clients, or the ApacheHttpClient (https://sdk.amazonaws.com/java/api/latest/software/amazon/awssdk/http/apache/ApacheHttpClient.html) for synchronous clients.
This class forms part of Paws, documenting arguments for method ReceiveMessage in Paws::SQS
The source code is located here: https://github.com/pplu/aws-sdk-perl
Please report bugs to: https://github.com/pplu/aws-sdk-perl/issues
To install Paws, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Paws
CPAN shell
perl -MCPAN -e shell install Paws
For more information on module installation, please visit the detailed CPAN module installation guide.