Adapter for daily fees and daily revenue data, for assetchain blockchain

.gitignore

@@ -2,4 +2,5 @@ node_modules
 .vscode
 .DS_store
 .env
-.idea
+.idea
+yarn.lock

fees/assetchain.ts

@@ -0,0 +1,79 @@
+import { Adapter, ProtocolType } from "../adapters/types";
+import { CHAIN } from "../helpers/chains";
+import { BigNumberish, ethers } from 'ethers';
+import { httpGet } from "../utils/fetchURL";
+
+const provider = new ethers.JsonRpcProvider('https://mainnet-rpc.assetchain.org');
+const contractAddress = '0xFC00FACE00000000000000000000000000000000';
+
+
+async function getFees24Hr() {
+    try {
+        const abi = [
+            'function currentSealedEpoch() view returns (uint256)',
+            'function getEpochSnapshot(uint256 epoch) view returns (uint256 endTime, uint256 epochFee, uint256 totalBaseRewardWeight, uint256 totalTxRewardWeight, uint256 baseRewardPerSecond, uint256 totalStake, uint256 totalSupply)'
+        ];
+        const contract = new ethers.Contract(contractAddress, abi, provider);
+        const currentEpoch = await contract.currentSealedEpoch();
+
+        // Calculate how many 4-hour epochs are in 24 hours (6 epochs)
+        const epochsToFetch = 6;
+        const epochs: any = [];
+
+        // Create array of epoch numbers to fetch (current and previous 5)
+        for (let i = 0; i < epochsToFetch; i++) epochs.push(currentEpoch.toString() - i);
+
+        // Fetch all epoch data in parallel
+        const epochData = await Promise.all(await epochs.map((epoch: any) => contract.getEpochSnapshot(epoch)));
+
+        // Calculate total fees and volume
+        let totalFees: BigInt = BigInt(0);
+        epochData.forEach((data: any) => {
+            const { epochFee } = data;
+            totalFees = totalFees += epochFee;
+        });
+
+        return ethers.formatEther(totalFees as unknown as BigNumberish);
+
+    } catch (error) {
+        console.error('Error fetching fees:', error);
+        throw error;
+    }
+}
+
+export async function convertRwaToUsd(amountInRwa: number) {
+    const url = 'https://price.assetchain.org/api/v1/price';
+    const result = await httpGet(url, {
+        responseType: 'blob', headers: {
+            "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36",
+            "Content-Type": "text/csv; charset=utf-8",
+            "Accept": "text/csv; charset=utf-8",
+            "origin": url,
+        }
+    });
+    const data = JSON.parse(result);
+    return data.data.price * amountInRwa;
+}
+
+convertRwaToUsd(820);
+
+
+const adapter: Adapter = {
+    version: 2,
+    adapter: {
+        [CHAIN.ASSETCHAIN]: {
+            fetch: async () => {
+                const feesInRwa = await getFees24Hr();
+                const feesInUsd = await convertRwaToUsd(Number(feesInRwa))
+                return {
+                    dailyFees: feesInUsd,
+                    dailyRevenue: feesInUsd
+                }
+            },
+            start: 1598671449,
+        },
+    },
+    protocolType: ProtocolType.CHAIN
+}
+
+export default adapter;

helpers/chains.ts

@@ -1,6 +1,7 @@
 // Use
 export enum CHAIN {
   ARBITRUM = "arbitrum",
+  ASSETCHAIN = "assetchain",
   AVAX = "avax",
   BLAST = "blast",
   BAHAMUT = "ftn",