add price conversion for all currencies

src/utils/currencies.js

@@ -38,7 +38,7 @@ export const currencies = [
   },
   {
     value: '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2',
-    label: 'Wrapped Ether',
+    label: 'WETH',
     img: `${TOKEN_COIN_API}/60.png`,
     width: '5%',
     humanReadibleFn: toEther,

src/utils/prices.js

@@ -1,6 +1,7 @@
 import cc from 'cryptocompare'
 import { getTokenLabel } from './currencies'
 
+const COMPOUND_V2_API = 'https://api.compound.finance/api/v2/ctoken'
 export const generatePairKey = (from, to) => `${from}_${to}`
 export const getUsdPrice = async ticker => {
   const price = await cc.price(ticker, 'USD')
@@ -11,9 +12,25 @@ export const formatPercent = number => Number(number).toLocaleString(undefined,{
 
 export const percentToGoal = (pledged, goal) => formatPercent(Number(pledged) / Number(goal))
 
+const supportedCompoundTokens = ['cETH', 'cDAI']
+const getCompoundRates = async prices => {
+  const values = {}
+  const compound = await fetch(COMPOUND_V2_API)
+  const res = await compound.json()
+  res.cToken
+    .filter(t => supportedCompoundTokens.includes(t.symbol))
+    .forEach(t => {
+      const { symbol, exchange_rate, underlying_price: { value } } = t
+      const underlyingUsd = Number(value) * Number(prices['ETH']['USD'])
+      const USD = Number(exchange_rate.value) * Number(underlyingUsd)
+      values[symbol] = { USD }
+    })
+  return values
+}
 export const getPrices = async () => {
-  const prices = await cc.priceMulti(['ETH', 'SNT'], ['USD'])
+  const prices = await cc.priceMulti(['ETH', 'SNT', 'DAI'], ['USD'])
-  return prices
+  const compound = await getCompoundRates(prices)
+  return { ...prices, ...compound, WETH: {...prices['ETH'] } }
 }
 
 const formatter = new Intl.NumberFormat('en-US', {