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feat(market): per-exchange 24h volume in the hero

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The hero's "24H Vol" showed CoinGecko's cross-exchange aggregate even after the
chart/price went per-venue. Capture the per-exchange converted_volume.usd from
the tickers (previously discarded, alongside converted_last) and show the
SELECTED exchange's own 24h volume; fall back to the aggregate when unknown.
Market cap stays aggregate (it's coin-wide, not per-venue).

This is a big real difference — e.g. Ourbit ~$14.3K vs NonKYC ~$253 for DRGX/USDT
— so the header now reflects the venue you're actually looking at.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
DanS
2026-07-12 10:58:50 -05:00
parent a107fda9b8
commit 326192e75e
3 changed files with 14 additions and 3 deletions
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7
src/data/exchange_info.cpp
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@@ -66,9 +66,12 @@ std::vector<ExchangeInfo> parseCoinGeckoTickers(const std::string& body)
}
const std::string tradeUrl = t.value("trade_url", std::string{});
if (base.empty() || target.empty() || market.empty()) continue;
double lastUsd = 0.0; // this venue's current USD price — differs per exchange
double lastUsd = 0.0; // this venue's current USD price + 24h volume — differ per exchange
if (t.contains("converted_last") && t["converted_last"].is_object())
lastUsd = t["converted_last"].value("usd", 0.0);
double volumeUsd = 0.0;
if (t.contains("converted_volume") && t["converted_volume"].is_object())
volumeUsd = t["converted_volume"].value("usd", 0.0);
auto it = byName.find(market);
if (it == byName.end()) {
@@ -76,7 +79,7 @@ std::vector<ExchangeInfo> parseCoinGeckoTickers(const std::string& body)
exchanges.push_back(ExchangeInfo{market, originOf(tradeUrl), {}});
it = byName.find(market);
}
ExchangePair pair{base, target, base + "/" + target, tradeUrl, identifier, lastUsd};
ExchangePair pair{base, target, base + "/" + target, tradeUrl, identifier, lastUsd, volumeUsd};
// Skip duplicate pairs on the same exchange.
bool dup = false;
for (const auto& p : exchanges[it->second].pairs)

1
src/data/exchange_info.h
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@@ -20,6 +20,7 @@ struct ExchangePair {
std::string tradeUrl; ///< Link to the exchange pair page
std::string identifier; ///< CoinGecko exchange id (e.g. "ourbit", "nonkyc_io") — keys the candle adapter
double lastUsd = 0.0; ///< This venue's current price in USD (CoinGecko converted_last.usd); 0 if unknown
double volumeUsd = 0.0; ///< This venue's 24h volume in USD (CoinGecko converted_volume.usd); 0 if unknown
};
/**