SendMessageResult

<p>An MD5 digest of the non-URL-encoded message body string. You can use this attribute to verify that Amazon SQS received the message correctly. Amazon SQS URL-decodes the message before creating the MD5 digest. For information about MD5, see <a href="https://www.ietf.org/rfc/rfc1321.txt">RFC1321</a>.</p>

<p>An MD5 digest of the non-URL-encoded message attribute string. You can use this attribute to verify that Amazon SQS received the message correctly. Amazon SQS URL-decodes the message before creating the MD5 digest. For information about MD5, see <a href="https://www.ietf.org/rfc/rfc1321.txt">RFC1321</a>.</p>

<p>An MD5 digest of the non-URL-encoded message system attribute string. You can use this attribute to verify that Amazon SQS received the message correctly. Amazon SQS URL-decodes the message before creating the MD5 digest.</p>

<p>An attribute containing the <code>MessageId</code> of the message sent to the queue. For more information, see <a href="https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-queue-message-identifiers.html">Queue and Message Identifiers</a> in the <i>Amazon SQS Developer Guide</i>. </p>

<p>This parameter applies only to FIFO (first-in-first-out) queues.</p> <p>The large, non-consecutive number that Amazon SQS assigns to each message.</p> <p>The length of <code>SequenceNumber</code> is 128 bits. <code>SequenceNumber</code> continues to increase for a particular <code>MessageGroupId</code>.</p>