This group has been designated for adults age 18 or older. Please sign in and confirm your date of birth in your profile so we can verify your eligibility. You may opt to make your date of birth private.
An alternative approach to achieve idempotency is to define the semantics of a message such that resending the message does not impact the system. For example, rather than defining a message as “Add $10 to account 12345,” we could change the message to “Set the balance of account 12345 to $110.” Both messages achieve the same result if the current account balance is $100. The second message is idempotent because receiving it twice will not have any effect.
