add default price config for RaiRedemptionRate

packages/financial-templates-lib/src/price-feed/CreatePriceFeed.js

@@ -12,6 +12,7 @@ const { CoinGeckoPriceFeed } = require("./CoinGeckoPriceFeed");
 const { TraderMadePriceFeed } = require("./TraderMadePriceFeed");
 const { PriceFeedMockScaled } = require("./PriceFeedMockScaled");
 const { InvalidPriceFeedMock } = require("./InvalidPriceFeedMock");
+const { RAIRedemptionRatePriceFeed } = require("./RAIRedemptionRatePriceFeed");
 const { defaultConfigs } = require("./DefaultPriceFeedConfigs");
 const { getTruffleContract } = require("@uma/core");
 const { ExpressionPriceFeed, math, escapeSpecialCharacters } = require("./ExpressionPriceFeed");
@@ -25,6 +26,7 @@ const uniswapBlockCache = {};
 
 async function createPriceFeed(logger, web3, networker, getTime, config) {
   const Uniswap = getTruffleContract("Uniswap", web3, "latest");
+  const RateSetter = getTruffleContract("RateSetter", web3, "latest");
   const ERC20 = getTruffleContract("ExpandedERC20", web3, "latest");
   const Balancer = getTruffleContract("Balancer", web3, "latest");
   const VaultInterface = getTruffleContract("VaultInterface", web3, "latest");
@@ -81,6 +83,35 @@ async function createPriceFeed(logger, web3, networker, getTime, config) {
       config.priceFeedDecimals, // This defaults to 18 unless supplied by user
       config.tickPeriod // Defaults to 60 unless supplied.
     );
+  } else if (config.type === "rairate") {
+    const requiredFields = ["rateSetterAddress", "raiSubgraphUrl", "updateRateDelay"];
+
+    if (isMissingField(config, requiredFields, logger)) {
+      return null;
+    }
+
+    logger.debug({
+      at: "createPriceFeed",
+      message: "Creating RAIRedemptionRatePriceFeed",
+      config
+    });
+
+    return new RAIRedemptionRatePriceFeed(
+      logger,
+      RateSetter.abi,
+      config.rateSetterAddress,
+      config.raiSubgraphUrl,
+      web3,
+      networker,
+      config.updateRateDelay,
+      config.twapLength,
+      config.historicalLookback,
+      getTime,
+      config.priceFeedDecimals,
+      config.raiDecimals, // Defaults to 27
+      config.priceFeedDecimals, // This defaults to 18 unless supplied by user
+      config.blocks
+    );
   } else if (config.type === "uniswap") {
     const requiredFields = ["uniswapAddress", "twapLength", "lookback"];
 

packages/financial-templates-lib/src/price-feed/DefaultPriceFeedConfigs.js

@@ -2,6 +2,14 @@ const { getPrecisionForIdentifier } = require("@uma/common");
 
 // Default price feed configs for currently approved identifiers.
 const defaultConfigs = {
+  RaiRedemptionRate: {
+    type: "rairate",
+    rateSetterAddress: "0x0641C280B21A31daf1518a91A68Ad396EcC6f2f0",
+    raiSubgraphUrl: "https://subgraph-kovan.reflexer.finance/subgraphs/name/reflexer-labs/rai",
+    updateRateDelay: 3 * 60 * 60,
+    twapLength: 8 * 60 * 60,
+    historicalLookback: 8 * 60 * 60
+  },
   "ETH/BTC": {
     type: "medianizer",
     pair: "ethbtc",