Ravi Sir's Cards › AWS
Durability
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
Durability
DynamoDB then SNS
Message saved even if email fails.
SNS only
If publish fails, the lead may be gone.
Key points
Business contact forms.
Throwaway demo alerts.
Example
PutItem messageId then Publish.
Use when
Leads you must keep.
Ephemeral notify.