feat: implement AggregatorRouter contract

README.md

@@ -85,6 +85,11 @@ Currently, you can access the following data feeds from Orakl Network.
 
 If you want to access different data feeds, you can change the aggregator proxy address (`aggregatorProxy`) inside of `hardhat.config.ts` under `namedAccounts` property.
 
+## AggregatorRouter
+
+- Baobab: [0xAF821aaaEdeF65b3bC1668c0b910c5b763dF6354](https://baobab.klaytnfinder.io/account/0xAF821aaaEdeF65b3bC1668c0b910c5b763dF6354)
+- Cypress: [0x16937CFc59A8Cd126Dc70A75A4bd3b78f690C861](https://www.klaytnfinder.io/account/0x16937CFc59A8Cd126Dc70A75A4bd3b78f690C861)
+
 ## Prerequisites
 
 Create a copy of `.env.example` file and fill in values for `PROVIDER`, and `MNEMONIC` or `PRIV_KEY` (the difference is explained below) environment variables.
@@ -156,3 +161,11 @@ To deploy `DataFeedConsumer`, run `npx hardhat deploy --network baobab`.
 ```shell
 npx hardhat run scripts/read-data.ts --network baobab
 ```
+
+## Request the latest value from Data Feed through RouterContract
+
+Pair name's fixed with "BTC-USDT", try out getting latest value of different pairs by changing pair name from the script.
+
+```shell
+npx hardhat run scripts/read-data-through-router.ts --network baobab
+```

contracts/DataFeedConsumer.sol

@@ -1,24 +1,27 @@
 // SPDX-License-Identifier: MIT
 pragma solidity ^0.8.16;
 
-import { IAggregator } from "@bisonai/orakl-contracts/src/v0.1/interfaces/IAggregator.sol";
+import {IAggregator} from "@bisonai/orakl-contracts/src/v0.1/interfaces/IAggregator.sol";
+import {IAggregatorRouter} from "@bisonai/orakl-contracts/src/v0.1/interfaces/IAggregatorRouter.sol";
 
 contract DataFeedConsumer {
     IAggregator internal dataFeed;
+    IAggregatorRouter internal router;
     int256 public answer;
     uint80 public roundId;
 
-    constructor(address aggregatorProxy) {
+    constructor(address aggregatorProxy, address aggregatorRouter) {
         dataFeed = IAggregator(aggregatorProxy);
+        router = IAggregatorRouter(aggregatorRouter);
     }
 
     function getLatestData() public {
         (
             uint80 roundId_,
-            int256 answer_
-            , /* uint startedAt */
-            , /* uint updatedAt */
-            , /* uint80 answeredInRound */
+            int256 answer_ /* uint startedAt */ /* uint updatedAt */ /* uint80 answeredInRound */,
+            ,
+            ,
+
         ) = dataFeed.latestRoundData();
 
         answer = answer_;
@@ -28,4 +31,21 @@ contract DataFeedConsumer {
     function decimals() public view returns (uint8) {
         return dataFeed.decimals();
     }
+
+    function getLatestDataThroughRouter(string pair) public {
+        (
+            uint80 roundId_,
+            int256 answer_ /* uint startedAt */ /* uint updatedAt */ /* uint80 answeredInRound */,
+            ,
+            ,
+
+        ) = router.latestRoundData(pair);
+
+        answer = answer_;
+        roundId = roundId_;
+    }
+
+    function decimalsThroughRouter(string pair) public view returns (uint8) {
+        return router.decimals(pair);
+    }
 }

deploy/0-DataFeedConsumer.ts

@@ -4,7 +4,7 @@ import { DeployFunction } from 'hardhat-deploy/types'
 const func: DeployFunction = async function (hre: HardhatRuntimeEnvironment) {
   const { deployments, getNamedAccounts, network } = hre
   const { deploy } = deployments
-  const { deployer, aggregatorProxy: aggregatorProxyAddress } = await getNamedAccounts()
+  const { deployer, aggregatorProxy: aggregatorProxyAddress, aggregatorRouter: aggregatorRouterAddress } = await getNamedAccounts()
 
   console.log('0-DataFeedConsumer.ts')
 
@@ -14,7 +14,7 @@ const func: DeployFunction = async function (hre: HardhatRuntimeEnvironment) {
   }
 
   await deploy('DataFeedConsumer', {
-    args: [aggregatorProxyAddress],
+    args: [aggregatorProxyAddress, aggregatorRouterAddress],
     from: deployer,
     log: true
   })

hardhat.config.ts

@@ -118,6 +118,10 @@ const config: HardhatUserConfig = {
       // cypress: '0xc2734F4c3Bf4E7c7673b86CB579013ea96295Ed3', // GBP-USD
       // cypress: '0x40Ffd98968403078664FD27D9CF9aA8Ca527d101', // JPY-USD
       // cypress: '0x369eabfeFdF585D84A714E7989a361D623B523C0', // KRW-USD
+    },
+    aggregatorRouter: {
+      baobab: '0xAF821aaaEdeF65b3bC1668c0b910c5b763dF6354'
+      //cypress: '0x16937CFc59A8Cd126Dc70A75A4bd3b78f690C861'
     }
   }
 }

scripts/read-data-through-router.ts

@@ -0,0 +1,20 @@
+import { ethers } from 'hardhat'
+
+const pair_name = "BTC-USDT"
+
+async function main() {
+  const userContract = await ethers.getContract('DataFeedConsumer')
+  console.log('DataFeedConsumer', userContract.address)
+
+  await (await userContract.getLatestDataThroughRouter(pair_name)).wait()
+
+  const answer = await userContract.answer()
+  const roundId = await userContract.roundId()
+  console.log(`answer ${answer.toString()}`)
+  console.log(`roundId ${roundId.toString()}`)
+}
+
+main().catch((error) => {
+  console.error(error)
+  process.exitCode = 1
+})