feat: implement nct/usd-6 routed pf

guidiaz · Oct 18, 2022 · b13148e · b13148e
1 parent 62e68d2
commit b13148e
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diff --git a/contracts/routed/NctUsdPriceFeed.sol b/contracts/routed/NctUsdPriceFeed.sol
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: MIT
+pragma solidity >=0.7.0 <0.9.0;
+
+import "../WitnetPriceFeedRouted.sol";
+
+contract NctUsdPriceFeed
+    is
+        WitnetPriceFeedRouted
+{
+    constructor (IWitnetPriceRouter _witnetPriceRouter)
+        WitnetPriceFeedRouted(_witnetPriceRouter)
+    {
+        require(
+            router.supportsCurrencyPair(0x4d50c3a654d1a0e2c7fcdcccc4200d1065d8b2500f341cbc8cbbdae281101533),
+            "NctCeloPriceFeed: router supports no NCT/CELO-6"
+        );
+        require(
+            router.supportsCurrencyPair(0x9ed884be27401b98a6c3e9d830d4288c949712e57a58235927b1a00dcd487073),
+            "CeloUsdPriceFeed: router supports no CELO/USD-6"
+        );
+        pairs = new bytes32[](2);
+        pairs[0] = 0x4d50c3a654d1a0e2c7fcdcccc4200d1065d8b2500f341cbc8cbbdae281101533;
+        pairs[1] = 0x9ed884be27401b98a6c3e9d830d4288c949712e57a58235927b1a00dcd487073;
+    }
+
+    /// @dev Derive price from given sources.
+    /// @param _prices Array of last prices for each one of the currency pairs specified on constructor,
+    /// in the same order as they were specified.
+    function _calculate(int256[] memory _prices)
+        internal pure
+        override
+        returns (int256)
+    {
+        return (_prices[0] * _prices[1]) / 10 ** 6;
+    }
+}
diff --git a/migrations/witnet-queries.json b/migrations/witnet-queries.json
@@ -344,6 +344,11 @@
         "bytecode": "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",
         "path": "witnet/prices/n/NctCeloPrice.js"
     },
+    "NctUsdPrice": {
+        "base": "NCT",
+        "quote": "USD",
+        "decimals": 6
+    },
     "OktUsdtPrice": {
         "bytecode": "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",
         "base": "OKT",