Feat/polygon exchange importer (#7507) (#7515)

* Feature: Add Polygon ERC20 importers for exchange

.changeset/soft-beers-walk.md

@@ -0,0 +1,5 @@
+---
+"@ledgerhq/cryptoassets": minor
+---
+
+Adding support for polygon ERC20 exchange importing

libs/ledgerjs/packages/cryptoassets/src/crypto-assets-importer/exchange/polygon-erc20.ts

@@ -0,0 +1,43 @@
+import fs from "fs";
+import { fetchTokens } from "../fetch";
+
+type PolygonERC20Exchange = [string, string, string];
+
+export const importPolygonERC20Exchange = async (outputDir: string) => {
+  console.log("importing Polygon-ERC20 exchange...");
+  try {
+    const [polygonERC20Exchange, hash] = await fetchTokens<PolygonERC20Exchange>(
+      "evm/137/erc20-exchange.json",
+    );
+    fs.writeFileSync(
+      `${outputDir}/exchange/polygon-erc20.json`,
+      JSON.stringify(polygonERC20Exchange),
+    );
+    if (hash) {
+      fs.writeFileSync(`${outputDir}/exchange/polygon-erc20-hash.json`, JSON.stringify(hash));
+    }
+
+    const polygonerc20typeStringified = `export type PolygonERC20Exchange = [string, string, string];`;
+    const hashStringified = hash
+      ? `export { default as hash } from "./polygon-erc20-hash.json";`
+      : "";
+    const exchangesStringified = `import exchanges from "./polygon-erc20.json";`;
+    const exportStringified = `export default exchanges as PolygonERC20Exchange[];`;
+
+    fs.writeFileSync(
+      `${outputDir}/exchange/polygon-erc20.ts`,
+      `${polygonerc20typeStringified}
+
+${hashStringified}
+
+${exchangesStringified}
+
+${exportStringified}
+`,
+    );
+
+    console.log("importing Polygon-ERC20 exchange success");
+  } catch (err) {
+    console.error(err);
+  }
+};

libs/ledgerjs/packages/cryptoassets/src/crypto-assets-importer/index.ts

@@ -17,6 +17,7 @@ import { importBEP20Exchange } from "./exchange/bep20";
 import { importERC20Exchange } from "./exchange/erc20";
 import { importCoinsExchange } from "./exchange/coins";
 import { importTRC20Exchange } from "./exchange/trc20";
+import { importPolygonERC20Exchange } from "./exchange/polygon-erc20";
 
 import { importERC20Signatures } from "./importers/erc20-signature";
 
@@ -48,6 +49,7 @@ const importExchangeTokens = async () => {
     importERC20Exchange(outputFolder),
     importCoinsExchange(outputFolder),
     importTRC20Exchange(outputFolder),
+    importPolygonERC20Exchange(outputFolder),
   ];
 
   await Promise.allSettled(promises);

libs/ledgerjs/packages/cryptoassets/src/data/exchange/polygon-erc20-hash.json

@@ -0,0 +1 @@
+"\"8f79337368e2cde5075fa2ddb1b3361a\""

libs/ledgerjs/packages/cryptoassets/src/data/exchange/polygon-erc20.ts

@@ -0,0 +1,7 @@
+export type PolygonERC20Exchange = [string, string, string];
+
+export { default as hash } from "./polygon-erc20-hash.json";
+
+import exchanges from "./polygon-erc20.json";
+
+export default exchanges as PolygonERC20Exchange[];

libs/ledgerjs/packages/cryptoassets/src/exchange.ts

@@ -2,8 +2,9 @@ import erc20 from "./data/exchange/erc20";
 import coins from "./data/exchange/coins";
 import bep20 from "./data/exchange/bep20";
 import trc20 from "./data/exchange/trc20";
+import polygon20 from "./data/exchange/polygon-erc20";
 
-const all = [...coins, ...erc20, ...bep20, ...trc20];
+const all = [...coins, ...erc20, ...bep20, ...trc20, ...polygon20];
 const configs = {};
 
 for (const [id, config, signature] of all) {