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remove spec

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Jon Staab
2026-05-26 14:28:52 -07:00
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backend/spec/bitcoin.md
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# `bitcoin` — fiat ↔ Bitcoin conversion
Free async helpers for pricing fiat amounts in Lightning units against a live BTC spot price. The NWC wallet lives in `spec/wallet.md`; billing orchestration lives in `spec/billing.md`.
## `pub async fn fiat_to_msats(amount_fiat_minor: i64, currency: &str) -> Result<u64>`
Converts a Stripe-style minor-unit fiat amount to millisatoshis using the live BTC spot price for `currency` and Stripe's per-currency decimal exponent (most currencies 2; `JPY`/`KRW`/… 0; `BHD`/`KWD`/… 3).
## `pub async fn get_bitcoin_price(currency: &str) -> Result<f64>`
Returns the current BTC spot price in `currency`, fetched from Coinbase's public spot-price endpoint.