Add cross-chain mappings to default token list

Author: Matteen.Mobasheran

package.json

@@ -4,7 +4,7 @@
   "description": "◦ The Uniswap default token list",
   "main": "build/uniswap-default.tokenlist.json",
   "scripts": {
-    "test": "mocha",
+    "test": "mocha --timeout 10000",
     "build": "rimraf build && mkdir -p build && node src/write.js > build/uniswap-default.tokenlist.json",
     "prepublishOnly": "npm test && npm run build"
   },
@@ -34,5 +34,8 @@
     "chai": "^4.2.0",
     "mocha": "^8.0.1",
     "rimraf": "^3.0.2"
+  },
+  "dependencies": {
+    "@uniswap/token-list-bridge-utils": "^1.0.7"
   }
 }

src/buildList.js

@@ -6,10 +6,11 @@ const goerli = require("./tokens/goerli.json");
 const kovan = require("./tokens/kovan.json");
 const polygon = require("./tokens/polygon.json");
 const mumbai = require("./tokens/mumbai.json");
+const bridgeUtils = require('@uniswap/token-list-bridge-utils');
 
-module.exports = function buildList() {
+module.exports = async function buildList() {
   const parsed = version.split(".");
-  return {
+  const l1List = {
     name: "Uniswap Labs Default List",
     timestamp: new Date().toISOString(),
     version: {
@@ -29,4 +30,5 @@ module.exports = function buildList() {
         return t1.chainId < t2.chainId ? -1 : 1;
       }),
   };
+  return await bridgeUtils.chainify(l1List)
 };

src/write.js

@@ -1,2 +1,5 @@
 const buildList = require('./buildList');
-console.log(JSON.stringify(buildList(), null, 2));
+
+(async () => {
+  console.log(JSON.stringify(await buildList(), null, 2));
+})();

test/uniswap-default.test.js

@@ -7,9 +7,13 @@ const buildList = require('../src/buildList');
 
 const ajv = new Ajv({ allErrors: true, format: 'full' });
 const validator = ajv.compile(schema);
+let defaultTokenList;
+
+before(async function () {
+  defaultTokenList = await buildList();
+});
 
 describe('buildList', () => {
-  const defaultTokenList = buildList();
 
   it('validates', () => {
     expect(validator(defaultTokenList)).to.equal(true);