The scenario
A user enters an amount, selects source and target currencies, and the system fetches live exchange rates to convert and display the result with retry handling for rate fetching failures.
What is in this drawing
Read the decisions behind it.
01
Validate amount before requesting rates
02
Fetch live exchange rate with retry option
03
Handle rate unavailability cleanly
Use this flowchart when designing or documenting a currency conversion feature that depends on live rate availability and user input validation.
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