Share constants for filenames in contract deploy and faucet scripts

Author: JeremyBernier

constants.ts

@@ -0,0 +1,14 @@
+// const FRONTEND_SRC_PATH = "frontend";
+const path = require("path");
+
+const FRONTEND_SRC_PATH = "frontend";
+
+export const TOKEN_JSON_FILE = "Token.json";
+export const CONTRACT_OUTPUT_FILENAME = "contract-address.json";
+export const CONTRACTS_DIRECTORY = path.join(
+  __dirname,
+  ".",
+  FRONTEND_SRC_PATH,
+  "src",
+  "contracts"
+);

hardhat.config.js hardhat.config.tshardhat.config.js renamed to hardhat.config.ts

@@ -10,7 +10,7 @@ module.exports = {
   solidity: "0.8.9",
   networks: {
     hardhat: {
-      chainId: 1337 // We set 1337 to make interacting with MetaMask simpler
-    }
-  }
+      chainId: 31337, // We set 1337 to make interacting with MetaMask simpler
+    },
+  },
 };

scripts/deploy.js scripts/deploy.tsscripts/deploy.js renamed to scripts/deploy.ts

@@ -1,7 +1,14 @@
 // This is a script for deploying your contracts. You can adapt it to deploy
 // yours, or create new ones.
 
-const path = require("path");
+import fs from "fs";
+import path from "path";
+
+const {
+  CONTRACTS_DIRECTORY,
+  CONTRACT_OUTPUT_FILENAME,
+  TOKEN_JSON_FILE,
+} = require("../constants");
 
 async function main() {
   // This is just a convenience check
@@ -33,22 +40,19 @@ async function main() {
 }
 
 function saveFrontendFiles(token) {
-  const fs = require("fs");
-  const contractsDir = path.join(__dirname, "..", "frontend", "src", "contracts");
-
-  if (!fs.existsSync(contractsDir)) {
-    fs.mkdirSync(contractsDir);
+  if (!fs.existsSync(CONTRACTS_DIRECTORY)) {
+    fs.mkdirSync(CONTRACTS_DIRECTORY);
   }
 
   fs.writeFileSync(
-    path.join(contractsDir, "contract-address.json"),
+    path.join(CONTRACTS_DIRECTORY, CONTRACT_OUTPUT_FILENAME),
     JSON.stringify({ Token: token.address }, undefined, 2)
   );
 
   const TokenArtifact = artifacts.readArtifactSync("Token");
 
   fs.writeFileSync(
-    path.join(contractsDir, "Token.json"),
+    path.join(CONTRACTS_DIRECTORY, TOKEN_JSON_FILE),
     JSON.stringify(TokenArtifact, null, 2)
   );
 }

tasks/faucet.js tasks/faucet.tstasks/faucet.js renamed to tasks/faucet.ts

@@ -1,4 +1,12 @@
-const fs = require("fs");
+import fs from "fs";
+import path from "path";
+
+const {
+  CONTRACTS_DIRECTORY,
+  CONTRACT_OUTPUT_FILENAME,
+} = require("../constants");
+
+const addressesFile = path.join(CONTRACTS_DIRECTORY, CONTRACT_OUTPUT_FILENAME);
 
 // This file is only here to make interacting with the Dapp easier,
 // feel free to ignore it if you don't need it.
@@ -14,9 +22,6 @@ task("faucet", "Sends ETH and tokens to an address")
       );
     }
 
-    const addressesFile =
-      __dirname + "/../frontend/src/contracts/contract-address.json";
-
     if (!fs.existsSync(addressesFile)) {
       console.error("You need to deploy your contract first");
       return;