add new utils

packages/utils/__tests__/asset-list-util.test.js

@@ -8,6 +8,7 @@ import {
   getAssetByDenom,
   getChainDenomBySymbol,
   getDenomByCoinGeckoId,
+  getCoinGeckoIdByDenom,
   getExponentByDenom,
   getSymbolByChainDenom,
   noDecimals
@@ -86,3 +87,34 @@ describe('tests for asset-list-util', () => {
     expect(re).toEqual('0.000099');
   });
 });
+
+describe('getCoinGeckoIdByDenom', () => {
+  it('uosmo coingecko id', () => {
+    const id = getCoinGeckoIdByDenom(assets, 'uosmo');
+    expect(id).toEqual('osmosis');
+  });
+
+  it('ujkl coingecko id on testnet', () => {
+    const id = getCoinGeckoIdByDenom(assets, 'ujkl', {
+      allowTestnet: true,
+      excludedChainNames: ['jackal']
+    });
+    expect(id).toEqual('jackal');
+  });
+
+  it('uluna coingecko id on terra2', () => {
+    const id = getCoinGeckoIdByDenom(assets, 'uluna', {
+      excludedChainNames: ['terra']
+    });
+    expect(id).toEqual('terra-luna-2');
+  });
+
+  it('uusdc coingecko id without traces', () => {
+    const id = getCoinGeckoIdByDenom(assets, 'uusdc', {
+      customAssetFilter(asset) {
+        return !asset.traces;
+      }
+    });
+    expect(id).toBeNull();
+  });
+});

packages/utils/src/asset-list-util.ts

@@ -1,4 +1,4 @@
-import { Asset, AssetDenomUnit } from '@chain-registry/types';
+import { Asset, AssetList, AssetDenomUnit } from '@chain-registry/types';
 import BigNumber from 'bignumber.js';
 
 export type CoinDenom = AssetDenomUnit['denom'];
@@ -28,6 +28,38 @@ export function getDenomByCoinGeckoId(
   return assets.find((asset) => asset.coingecko_id === coinGeckoId).base;
 }
 
+type GetCoinGeckoIdByDenomOptions = {
+  allowTestnet?: boolean;
+  customAssetFilter?: (asset: Asset) => boolean;
+  excludedChainNames?: string[];
+};
+
+export function getCoinGeckoIdByDenom(
+  assets: AssetList[],
+  denom: CoinDenom,
+  {
+    allowTestnet = false,
+    customAssetFilter = () => true,
+    excludedChainNames = []
+  }: GetCoinGeckoIdByDenomOptions = {}
+): string | null {
+  const filteredAssetLists = assets.filter(({ chain_name }) => {
+    return (
+      (allowTestnet || !chain_name.includes('testnet')) &&
+      !excludedChainNames.includes(chain_name)
+    );
+  });
+
+  const filteredAssets = filteredAssetLists
+    .flatMap(({ assets }) => assets)
+    .filter(({ coingecko_id }) => coingecko_id)
+    .filter(customAssetFilter);
+
+  const asset = filteredAssets.find(({ base }) => base === denom);
+
+  return asset?.coingecko_id ?? null;
+}
+
 export function getSymbolByChainDenom(
   assets: Asset[],
   denom: CoinDenom