Ravi Sir's Cards › AWS
RequestResponse vs Event
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
Waits?
RequestResponse
Yes, returns payload.
Event
No, returns 202.
Key points
Caller sees errors.
Lambda retries twice.
Example
InvocationType default
Use when
Checkout price.
Receipts, emails.