sns/aws.sdk.kotlin.services.sns.model/PublishRequest/Builder/messageDeduplicationId

messageDeduplicationId

var messageDeduplicationId: String?

This parameter applies only to FIFO (first-in-first-out) topics. The MessageDeduplicationId can contain up to 128 alphanumeric characters (a-z, A-Z, 0-9) and punctuation (!"#$%&'()*+,-./:;<=>?@[\]^_{|}~)`.

Every message must have a unique MessageDeduplicationId, which is a token used for deduplication of sent messages. If a message with a particular MessageDeduplicationId is sent successfully, any message sent with the same MessageDeduplicationId during the 5-minute deduplication interval is treated as a duplicate.

If the topic has ContentBasedDeduplication set, the system generates a MessageDeduplicationId based on the contents of the message. Your MessageDeduplicationId overrides the generated one.