Ravi Sir's Cards › AWS
How does DynamoDB TTL work?
What is a VPC: your own private network inside one AWS Region, example ThreeTierVpc 10.0.0.0/16.
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What this card says
What it is
Number attribute with Unix epoch seconds; expired items are deleted later in the background.
Why it matters
Not a precise alarm clock — deletion is eventually done.
How / example
Set expiresAt = now+900 for 15-minute tokens.