web 3 dollar (#295)

* web 3 dollar

* Update peggedData.ts

---------

Co-authored-by: Web3 Dollar <Web3>
Co-authored-by: Define101 <93603962+Define101@users.noreply.github.com>

src/adapters/peggedAssets/index.ts

@@ -102,6 +102,7 @@ import cash from "./stabl-fi";
 import dsu from "./digital-standard-unit";
 import electronicusd from "./electronic-usd";
 import hyusd from "./high-yield-usd";
+import usd3 from "./web-3-dollar";
 import eure from "./monerium-eur-money";
 import anonusd from "./offshift-anonusd";
 import nxusd from "./nxusd";
@@ -281,6 +282,7 @@ export default {
   "digital-standard-unit": dsu,
   "electronic-usd": electronicusd,
   "high-yield-usd": hyusd,
+  "web-3-dollar": usd3,
   "monerium-eur-money": eure,
   "offshift-anonusd": anonusd,
   nxusd,

src/adapters/peggedAssets/web-3-dollar/index.ts

@@ -0,0 +1,56 @@
+const sdk = require("@defillama/sdk");
+import { sumSingleBalance } from "../helper/generalUtil";
+import {
+  ChainBlocks,
+  PeggedIssuanceAdapter,
+  Balances,
+} from "../peggedAsset.type";
+
+type ChainContracts = {
+  [chain: string]: {
+    [contract: string]: string[];
+  };
+};
+
+const chainContracts: ChainContracts = {
+  ethereum: {
+    issued: ["0x0d86883FAf4FfD7aEb116390af37746F45b6f378"],
+  },
+};
+
+async function chainMinted(chain: string, decimals: number) {
+  return async function (
+    _timestamp: number,
+    _ethBlock: number,
+    _chainBlocks: ChainBlocks
+  ) {
+    let balances = {} as Balances;
+    for (let issued of chainContracts[chain].issued) {
+      const totalSupply = (
+        await sdk.api.abi.call({
+          abi: "erc20:totalSupply",
+          target: issued,
+          block: _chainBlocks?.[chain],
+          chain: chain,
+        })
+      ).output;
+      sumSingleBalance(
+        balances,
+        "peggedUSD",
+        totalSupply / 10 ** decimals,
+        "issued",
+        false
+      );
+    }
+    return balances;
+  };
+}
+
+const adapter: PeggedIssuanceAdapter = {
+  ethereum: {
+    minted: chainMinted("ethereum", 18),
+    unreleased: async () => ({}),
+  },
+};
+
+export default adapter;

src/peggedData/peggedData.ts

@@ -3566,4 +3566,24 @@ export default [
     twitter: "https://twitter.com/nostrafinance",
     wiki: null,
   },
+  {
+     id: "178",
+    name: "Web 3 Dollar",
+    address: "0x0d86883FAf4FfD7aEb116390af37746F45b6f378",
+    symbol: "USD3",
+    url: "https://app.reserve.org/ethereum/token/0x0d86883faf4ffd7aeb116390af37746f45b6f378/overview",
+    description:
+      "Earn the DeFi rate any time you're in stables",
+    mintRedeemDescription:
+      "Minting requires a deposit of the defined collateral tokens in equal value amounts to the RToken smart contracts.",
+    onCoinGecko: null,
+    gecko_id: "web-3-dollar", //fakecg
+    cmcId: null,
+    pegType: "peggedUSD",
+    pegMechanism: "crypto-backed",
+    priceSource: "defillama",
+    auditLinks: null,
+    twitter: "https://twitter.com/USD_3",
+    wiki: "https://app.reserve.org/ethereum/token/0x0d86883faf4ffd7aeb116390af37746f45b6f378/overview",
+ }
 ] as PeggedAsset[];