Add burnz token fetcher and integrate into supplyFetchers (#381)

src/index.ts

@@ -17,6 +17,7 @@ import boonFetcher from "./tokens/boon";
 import boxFetcher from "./tokens/box";
 import bptFetcher from "./tokens/bpt";
 import btnFetcher from "./tokens/btn";
+import burnzFetcher from "./tokens/burnz";
 import bubbleFetcher from "./tokens/bubble";
 import c3Fetcher from "./tokens/c3";
 import c4Fetcher from "./tokens/c4";
@@ -481,4 +482,5 @@ export const supplyFetchers: Record<string, SupplyFetcher> = {
     piguFetcher,
   "30d2ebdb2fec06142ee84e5120c2717b4d68a91bffd924420d94ddea43484950":
     chipFetcher,
+  "86340a33acf14b5c967584c9a20e984695ab3289696d138048f572be4255524e5a": burnzFetcher,
 };

src/tokens/burnz.ts

@@ -0,0 +1,21 @@
+import { defaultFetcherOptions, SupplyFetcher } from "../types";
+import { getAmountInAddresses, getBlockFrostInstance } from "../utils";
+
+const TOKEN =
+  "86340a33acf14b5c967584c9a20e984695ab3289696d138048f572be4255524e5a";
+
+const fetcher: SupplyFetcher = async (options = defaultFetcherOptions) => {
+  const blockFrost = getBlockFrostInstance(options);
+  const total = 1_000_000_000;
+  const treasuryRaw = await getAmountInAddresses(blockFrost, TOKEN, [
+    "addr1qxc6u2d5ppeuhg7tkj5quf3csxp2022g98az65hpad9m6yreuxes6p3hhg880tegsg95xqwek6srgac5jq04x9rcm2qq6a6md7", // TREASURY
+    "addr1qxtqu8cvxjxrh035s6f9k698rglpguz4xs8gw5edja2z6fp4x79ct53d3gpl0g3w4eyvnlv09nkjqvrkspfxjza3h0eqy34flk", // team
+  ]);
+  const treasury = Number(treasuryRaw);
+  return {
+    circulating: (total - treasury).toString(),
+    total: total.toString(),
+  };
+};
+
+export default fetcher;