Merge pull request #2 from AstarNetwork/feat/astar-tvl

feat: added TVL for Astar network

projects/astar-dapps-staking/index.js

@@ -0,0 +1,26 @@
+const { ApiPromise, WsProvider } = require("@polkadot/api");
+
+const ASTR_DECIMALS = 18;
+
+async function tvl() {
+  const provider = new WsProvider("wss://astar.api.onfinality.io/public-ws");
+  const api = new ApiPromise({
+    provider,
+  });
+
+  await api.isReady;
+  const era = await api.query.dappsStaking.currentEra();
+  const result = await api.query.dappsStaking.eraRewardsAndStakes(era);
+  const tvl = result.unwrap().staked.valueOf();
+  const AstrLocked = tvl / 10 ** ASTR_DECIMALS;
+
+  return {
+    astar: AstrLocked,
+  };
+}
+
+module.exports = {
+  methodology:
+    "TVL considers ASTR tokens deposited to the Dapps-Staking program",
+  tvl,
+};