feat: live exchange rate display in payment form (#262) - #409
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Mystery-CLI merged 2 commits intoApr 25, 2026
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- useExchangeRate now returns { rate, loading } and tracks fetch state
- Show 'Loading rate…' while initial fetch is in flight
- Update on rateChange WebSocket events from the rates channel
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Summary
Wires the
/api/stellar/exchange-rate/XLM/USDendpoint andrateChangeWebSocket events into the payment form to show a live USD estimate as the user types an XLM amount.Changes
useExchangeRate: returns{ rate, loading }instead of justrate; tracks fetch state so the UI can show a loading indicatorApp.jsx: shows≈ $X.XX USD · live ratebelow the amount input when rate is available; showsLoading rate…while the initial fetch is in flightindex.css: adds.rate-estimate--loadingstyle for the loading stateBehaviour
Loading rate…shown insteadrateChangeWebSocket event arrives → display updates automaticallyCloses #262