Add FtmFeed

contracts/FtmFeed.sol

@@ -0,0 +1,33 @@
+//SPDX-License-Identifier: None
+
+pragma solidity ^0.5.16;
+
+import "./SafeMath.sol";
+
+interface IFeed {
+    function decimals() external view returns (uint8);
+    function latestAnswer() external view returns (uint);
+}
+
+contract FtmFeed is IFeed {
+    using SafeMath for uint;
+
+    IFeed public ftmFeed;
+    IFeed public ethFeed;
+
+    constructor(IFeed _ftmFeed, IFeed _ethFeed) public {
+        ftmFeed = _ftmFeed;
+        ethFeed = _ethFeed;
+    }
+
+    function decimals() public view returns (uint8) {
+        return 18;
+    }
+
+    function latestAnswer() public view returns (uint) {
+        uint ftmEthPrice = ftmFeed.latestAnswer();
+        return ftmEthPrice
+            .mul(ethFeed.latestAnswer())
+            .div(10**uint256(ethFeed.decimals()));
+    }
+}

deploy/35_ftmFeed.js

@@ -0,0 +1,18 @@
+module.exports = async ({
+    deployments,
+    getNamedAccounts
+  }) => {
+    console.log("35. Deploy Ftm Feed")
+    const {deploy} = deployments;
+    const {deployer, ftmEthFeed, ethFeed} = await getNamedAccounts();
+
+    await deploy('FtmFeed', {
+      from: deployer,
+      args:[
+        ftmEthFeed,
+        ethFeed
+      ]
+    });
+  };
+
+  module.exports.tags = ['FtmFeed'];

hardhat.config.js

@@ -87,7 +87,11 @@ module.exports = {
     },
     stethEthFeed: {
       1:"0xAb55Bf4DfBf469ebfe082b7872557D1F87692Fe6"
-    },    
+    },
+    ftmEthFeed: {
+      1:"0x2de7e4a9488488e0058b95854cc2f7955b35dc9b",
+      4:"0xc751E86208F0F8aF2d5CD0e29716cA7AD98B5eF5"
+    },
     deployer:{
       default:0
     },