Add GraFun (#11798)

projects/grafun/index.js

@@ -0,0 +1,21 @@
+const ethers = require("ethers");
+
+const BSC_RPC_URL = 'https://bsc-dataseed1.binance.org/';
+const TOKEN_SALE_FACTORY = "0x8341b19a2A602eAE0f22633b6da12E1B016E6451";
+
+async function getBscTVL() {
+    const provider = new ethers.JsonRpcProvider(BSC_RPC_URL);
+
+    const balanceWei = await provider.getBalance(TOKEN_SALE_FACTORY);
+    const balanceBNB = ethers.formatEther(balanceWei);
+
+    return { binancecoin: balanceBNB };
+}
+
+module.exports = {
+    methodology: "TVL is calculated by aggregating the market value of BNB tokens held within the Token Sale Factory smart contract.",
+    start: 42593135,
+    bsc: {
+        tvl: getBscTVL
+    }
+};