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@ -2,12 +2,13 @@ const {
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updateCachedPrice, |
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loadCache |
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} = require('./price_engine'); |
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const { fetchPair } = require('../backend/providers/klingex'); |
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async function fetchJson(url) { |
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const res = await fetch(url, { |
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headers: { |
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'accept': 'application/json', |
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'user-agent': 'otb-oracle/0.2' |
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'user-agent': 'otb-oracle/0.3' |
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} |
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}); |
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@ -18,16 +19,10 @@ async function fetchJson(url) {
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return res.json(); |
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} |
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async function fetchCoinGeckoSimplePrice() { |
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const ids = [ |
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'usd-coin', |
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'ethereum', |
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'ether-1', |
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'etica' |
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].join(','); |
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async function fetchCoinGeckoSimplePrice(ids) { |
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const joined = Array.isArray(ids) ? ids.join(',') : String(ids || ''); |
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const url = |
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`https://api.coingecko.com/api/v3/simple/price?ids=${encodeURIComponent(ids)}&vs_currencies=usd,cad`; |
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`https://api.coingecko.com/api/v3/simple/price?ids=${encodeURIComponent(joined)}&vs_currencies=usd,cad`; |
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return fetchJson(url); |
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} |
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@ -37,16 +32,23 @@ async function fetchCoinPaprikaTicker(coinId) {
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return fetchJson(url); |
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} |
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function getCadPerUsd(coingeckoData) { |
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if (coingeckoData?.['usd-coin']?.cad && Number.isFinite(Number(coingeckoData['usd-coin'].cad))) { |
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return Number(coingeckoData['usd-coin'].cad); |
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function hasFinitePrice(value) { |
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return value !== null && value !== undefined && Number.isFinite(Number(value)) && Number(value) > 0; |
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} |
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function getCachedCadPerUsd() { |
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try { |
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const cache = loadCache(); |
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const cachedCad = cache?.assets?.USDC_ARB?.price_cad; |
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if (cachedCad && Number.isFinite(Number(cachedCad))) { |
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return Number(cachedCad); |
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const usdc = cache?.assets?.USDC_ARB || {}; |
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const usd = Number(usdc.price_usd); |
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const cad = Number(usdc.price_cad); |
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if (hasFinitePrice(usd) && hasFinitePrice(cad)) { |
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return cad / usd; |
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} |
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if (hasFinitePrice(cad)) { |
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return cad; |
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} |
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} catch (_) { |
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} |
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@ -54,11 +56,7 @@ function getCadPerUsd(coingeckoData) {
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return 1.38; |
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} |
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function hasFinitePrice(value) { |
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return value !== null && value !== undefined && Number.isFinite(Number(value)) && Number(value) > 0; |
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} |
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function maybeUpdateFromCoinGecko(pairKey, cgKey, sourceData, now) { |
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function maybeUpdateFromCoinGecko(pairKey, sourceData, now, sourceStatus = 'primary') { |
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if (!sourceData || !hasFinitePrice(sourceData.usd) || !hasFinitePrice(sourceData.cad)) { |
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return false; |
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} |
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@ -67,14 +65,14 @@ function maybeUpdateFromCoinGecko(pairKey, cgKey, sourceData, now) {
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price_usd: Number(sourceData.usd), |
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price_cad: Number(sourceData.cad), |
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source: 'coingecko', |
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source_status: 'primary', |
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source_status: sourceStatus, |
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updated_at: now |
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}); |
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return true; |
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} |
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function maybeUpdateFromCoinPaprika(pairKey, tickerData, cadPerUsd, now) { |
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function maybeUpdateFromCoinPaprika(pairKey, tickerData, cadPerUsd, now, sourceStatus = 'primary') { |
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const usd = Number(tickerData?.quotes?.USD?.price); |
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if (!hasFinitePrice(usd)) { |
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@ -87,74 +85,85 @@ function maybeUpdateFromCoinPaprika(pairKey, tickerData, cadPerUsd, now) {
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price_usd: usd, |
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price_cad: cad, |
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source: 'coinpaprika', |
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source_status: 'fallback', |
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source_status: sourceStatus, |
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updated_at: now |
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}); |
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return true; |
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} |
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async function main() { |
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const now = new Date().toISOString(); |
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const updatedPairs = []; |
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let cgData = {}; |
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async function updateFromPaprika(pairKey, coinId, cadPerUsd, now, updatedPairs, sourceStatus = 'primary') { |
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try { |
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cgData = await fetchCoinGeckoSimplePrice(); |
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const ticker = await fetchCoinPaprikaTicker(coinId); |
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if (maybeUpdateFromCoinPaprika(pairKey, ticker, cadPerUsd, now, sourceStatus)) { |
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updatedPairs.push(pairKey); |
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return true; |
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} |
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} catch (err) { |
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console.error(`CoinGecko fetch failed: ${err.message}`); |
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cgData = {}; |
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console.error(`CoinPaprika ${pairKey} fetch failed: ${err.message}`); |
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} |
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const cadPerUsd = getCadPerUsd(cgData); |
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if (maybeUpdateFromCoinGecko('USDC_ARB', 'usd-coin', cgData['usd-coin'], now)) { |
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updatedPairs.push('USDC_ARB'); |
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return false; |
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} |
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if (maybeUpdateFromCoinGecko('ETH_ETH', 'ethereum', cgData['ethereum'], now)) { |
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updatedPairs.push('ETH_ETH'); |
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async function updateETHOFromKlingEx(now, updatedPairs, cadPerUsd) { |
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try { |
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const r = await fetchPair('ETHO-USDT'); |
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const usd = Number(r.price); |
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if (!hasFinitePrice(usd)) { |
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throw new Error(`KlingEx returned non-usable ETHO price: ${r.price}`); |
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} |
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let ethoUpdated = maybeUpdateFromCoinGecko('ETHO_ETHO', 'ether-1', cgData['ether-1'], now); |
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if (!ethoUpdated) { |
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try { |
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const pap = await fetchCoinPaprikaTicker('etho-ethoprotocol'); |
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if (maybeUpdateFromCoinPaprika('ETHO_ETHO', pap, cadPerUsd, now)) { |
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const cad = Number((usd * cadPerUsd).toFixed(8)); |
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updateCachedPrice('ETHO_ETHO', { |
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price_usd: usd, |
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price_cad: cad, |
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source: r.source || 'klingex', |
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source_status: 'primary', |
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updated_at: now |
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}); |
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updatedPairs.push('ETHO_ETHO'); |
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ethoUpdated = true; |
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} |
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return true; |
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} catch (err) { |
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console.error(`Coinpaprika ETHO fallback failed: ${err.message}`); |
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} |
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} else { |
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updatedPairs.push('ETHO_ETHO'); |
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console.error(`KlingEx ETHO fetch failed: ${err.message}`); |
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} |
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let etiUpdated = maybeUpdateFromCoinGecko('ETI_ETICA', 'etica', cgData['etica'], now); |
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if (!etiUpdated) { |
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// Last-resort fallback only.
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try { |
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const pap = await fetchCoinPaprikaTicker('eti-etica'); |
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if (maybeUpdateFromCoinPaprika('ETI_ETICA', pap, cadPerUsd, now)) { |
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updatedPairs.push('ETI_ETICA'); |
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etiUpdated = true; |
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const cgData = await fetchCoinGeckoSimplePrice(['ether-1']); |
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if (maybeUpdateFromCoinGecko('ETHO_ETHO', cgData['ether-1'], now, 'fallback')) { |
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updatedPairs.push('ETHO_ETHO'); |
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return true; |
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} |
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console.error('CoinGecko ETHO fallback returned no usable ether-1 price'); |
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} catch (err) { |
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console.error(`Coinpaprika ETI fallback failed: ${err.message}`); |
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} |
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} else { |
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updatedPairs.push('ETI_ETICA'); |
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console.error(`CoinGecko ETHO fallback failed: ${err.message}`); |
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} |
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try { |
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const papEgaz = await fetchCoinPaprikaTicker('egaz-egaz'); |
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if (maybeUpdateFromCoinPaprika('EGAZ_ETICA', papEgaz, cadPerUsd, now)) { |
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updatedPairs.push('EGAZ_ETICA'); |
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} |
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} catch (err) { |
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console.error(`Coinpaprika EGAZ fetch failed: ${err.message}`); |
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return false; |
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} |
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async function main() { |
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const now = new Date().toISOString(); |
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const updatedPairs = []; |
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let cadPerUsd = getCachedCadPerUsd(); |
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await updateFromPaprika('USDC_ARB', 'usdc-usd-coin', cadPerUsd, now, updatedPairs, 'primary'); |
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cadPerUsd = getCachedCadPerUsd(); |
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await updateFromPaprika('ETH_ETH', 'eth-ethereum', cadPerUsd, now, updatedPairs, 'primary'); |
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// ETHO uses KlingEx primary; CoinGecko only as last fallback.
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await updateETHOFromKlingEx(now, updatedPairs, cadPerUsd); |
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await updateFromPaprika('ETI_ETICA', 'eti-etica', cadPerUsd, now, updatedPairs, 'fallback'); |
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await updateFromPaprika('EGAZ_ETICA', 'egaz-egaz', cadPerUsd, now, updatedPairs, 'fallback'); |
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console.log(JSON.stringify({ |
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ok: true, |
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fetched_at: now, |
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def
1 month ago
