Rango Dex aggregator (DefiLlama#3773)

* add rango to dex aggregators and update chains

* refactor

---------

Co-authored-by: treeoflife2 <sol.analyzoor@gmail.com>

Author: hamidgh09

aggregators/rango/index.ts

@@ -0,0 +1,95 @@
+import { Adapter, FetchOptions } from '../../adapters/types';
+import { httpGet } from '../../utils/fetchURL';
+import { CHAIN } from '../../helpers/chains';
+
+const RangoChains: Record<string, string> = {
+  [CHAIN.ETHEREUM]: 'ETH',
+  [CHAIN.SOLANA]: 'SOLANA',
+  [CHAIN.BSC]: 'BSC',
+  [CHAIN.SCROLL]: 'SCROLL',
+  [CHAIN.BASE]: 'BASE',
+  [CHAIN.BITCOIN]: 'BTC',
+  [CHAIN.ARBITRUM]: 'ARBITRUM',
+  [CHAIN.POLYGON]: 'POLYGON',
+  [CHAIN.OPTIMISM]: 'OPTIMISM',
+  [CHAIN.LINEA]: 'LINEA',
+  [CHAIN.CELO]: 'CELO',
+  [CHAIN.AVAX]: 'AVAX_CCHAIN',
+  [CHAIN.ERA]: 'ZKSYNC',
+  [CHAIN.MODE]: 'MODE',
+  [CHAIN.TRON]: 'TRON',
+  [CHAIN.ZORA]: 'ZORA',
+  [CHAIN.BLAST]: 'BLAST',
+  [CHAIN.OSMOSIS]: 'OSMOSIS',
+  [CHAIN.COSMOS]: 'COSMOS',
+  [CHAIN.FANTOM]: 'FANTOM',
+  [CHAIN.MOONRIVER]: 'MOONRIVER',
+  [CHAIN.TAIKO]: 'TAIKO',
+  [CHAIN.STARKNET]: 'STARKNET',
+  [CHAIN.POLYGON_ZKEVM]: 'POLYGONZK',
+  [CHAIN.SUI]: 'SUI',
+  [CHAIN.CRONOS]: 'CRONOS',
+  [CHAIN.NOBLE]: 'NOBLE',
+  [CHAIN.BOBA]: 'BOBA',
+  [CHAIN.THORCHAIN]: 'THOR',
+  [CHAIN.FUSE]: 'FUSE',
+  [CHAIN.XDAI]: 'GNOSIS',
+  [CHAIN.HARMONY]: 'HARMONY',
+  [CHAIN.MOONBEAM]: 'MOONBEAM',
+  [CHAIN.TERRA]: 'TERRA',
+  [CHAIN.SONIC]: 'SONIC',
+  [CHAIN.TON]: 'TON',
+  [CHAIN.BERACHAIN]: 'BERACHAIN',
+  [CHAIN.AURORA]: 'AURORA',
+};
+
+const fetch: any = async (timestamp: number, _: any, options: FetchOptions) => {
+  const prefetchData = options.preFetchedResults as Record<string, any[]>;
+  const chainCode = RangoChains[options.chain];
+  const statsForChain = prefetchData[chainCode] || [];
+
+  const date = new Date(timestamp * 1000).toISOString().split('T')[0];
+  
+  const statEntry = statsForChain.find(item => {
+    const itemDate = item.date.split('T')[0];
+    return itemDate === date;
+  });
+
+  return {
+    dailyVolume: Number(statEntry?.volume || 0)
+  }
+}
+
+const prefetch = async (_: FetchOptions) => {
+  const API_KEY = '4a624ab5-16ff-4f96-90b7-ab00ddfc342c'
+  const DAYS = 10000
+  const BREAKDOWN = 'SOURCE'
+
+  // fire off one request per chain
+  const entries = await Promise.all(
+    Object.values(RangoChains).map(chainCode =>
+      httpGet(
+        `https://api.rango.exchange/scanner/summary/daily` +
+        `?days=${DAYS}` +
+        `&breakDownBy=${BREAKDOWN}` +
+        `&apiKey=${API_KEY}` +
+        `&source=${chainCode}` +
+        `&destination=${chainCode}`
+      ).then(response => [chainCode, response.stats])
+    )
+  );
+
+  return Object.fromEntries(entries);
+}
+
+
+const chainAdapter = { fetch, start: '2021-08-04' }
+
+const adapter: Adapter = {
+  adapter: Object.fromEntries(Object.entries(RangoChains).map(
+    ([chain]) => [chain, chainAdapter]
+  )),
+  prefetch: prefetch,
+}
+
+export default adapter;

bridge-aggregators/rango/index.ts

@@ -37,6 +37,10 @@ const RangoChains: Record<string, string> = {
   [CHAIN.HARMONY]: 'HARMONY',
   [CHAIN.MOONBEAM]: 'MOONBEAM',
   [CHAIN.TERRA]: 'TERRA',
+  [CHAIN.SONIC]: 'SONIC',
+  [CHAIN.TON]: 'TON',
+  [CHAIN.BERACHAIN]: 'BERACHAIN',
+  [CHAIN.AURORA]: 'AURORA',
 };
 
 const fetch: any = async (timestamp: number, _: any, options: FetchOptions) => {