Ravi Sir's Cards › AWS
Fit before code
This revision card explains Fit before code. It starts from the need that building Lambda first hides limit and cost surprises later. It describes decide fit, sync vs async, timeout, concurrency and cost before coding. The how-to section notes write the path , then check 15-min limit , then pick sync or queue , then estimate RPS. An example on the card is neha Kulkarni sketches fit on paper before opening the console.
Read card text
What this card says
Why do we need it?
Building Lambda first hides limit and cost surprises later.
What is it?
Decide fit, sync vs async, timeout, concurrency and cost before coding.
fit checklist
How to do it
Write the path → check 15-min limit → pick sync or queue → estimate RPS.
Example
Neha Kulkarni sketches fit on paper before opening the console.