updating dependencies, using ethers for tasks, few cleanups

README.md

@@ -1,18 +1,27 @@
-# Basic Sample Hardhat Project
+# hardhat-boilerplate
 
-This project demonstrates a basic Hardhat use case. It comes with a sample contract, a test for that contract, a sample script that deploys that contract, and an example of a task implementation, which simply lists the available accounts.
+This project demonstrates a basic Hardhat use case. It comes with a sample contract, a test for that contract, a sample script that deploys that contract, and an example of a task implementation, which simply lists the available accounts with balances.
 
 Try running some of the following tasks:
 
 ```shell
-npx hardhat node # starts local node
-npx hardhat accounts # list accounts
-npx hardhat balance --account '0x47a9...' # show balance eth of specified account
-npx hardhat compile # compiles contracts
-npx hardhat deploy # deploys contract defined in tasks
-node scripts/deployContract.js
-npx hardhat run --network local scripts/deployContract.js # deplys contract on specified network
-npx hardhat clean
-npx hardhat test
-npx hardhat help
+yarn install
+
+yarn hardhat node # starts local node
+
+yarn hardhat accounts # list accounts with balances
+
+yarn hardhat balance --account '0x47a9...' # show balance eth of specified account
+
+yarn hardhat compile # compiles contracts
+
+yarn hardhat deploy --network local # deploys contract defined in tasks on specified network
+
+yarn hardhat run --network local scripts/deploy.js # deploys contract in scripts/deploy.js
+
+yarn hardhat test # runs tests
+
+yarn hardhat clean # removes all compiled and deployed artifacts
+
+yarn hardhat help # shows help
 ```

contracts/greeter.sol

@@ -1,5 +1,5 @@
 //SPDX-License-Identifier: MIT
-pragma solidity ^0.8.0;
+pragma solidity 0.8.7;
 
 contract greeter {
     string private greeting;

hardhat.config.js

@@ -1,35 +1,35 @@
 require("@nomiclabs/hardhat-ethers");
-require("@nomiclabs/hardhat-waffle");
-require("@nomiclabs/hardhat-web3");
 
 // This is a sample Hardhat task. To learn how to create your own go to
 // https://hardhat.org/guides/create-task.html
 task("hello", "Prints Hello World", () => console.log("Hello World!"));
 
-task("accounts", "Prints the list of accounts", async () => {
+task("accounts", "Prints the list of accounts with balances", async () => {
   const accounts = await ethers.getSigners();
+  const provider = await ethers.provider;
 
   for (const account of accounts) {
-    console.log(account.address);
+    const balance = await provider.getBalance(account.address);
+    console.log(`${account.address} - ${ethers.utils.formatEther(balance)} ETH`);
   }
 });
 
 task("deploy", "Deploys Contract", async () => {
-  const Greeter = await ethers.getContractFactory("greeter");
-  const greeter = await Greeter.deploy("Hello, Hardhat!");
-  await greeter.deployed();
-  console.log("Greeter contract deployed to:", greeter.address);
+  const contractFactory = await ethers.getContractFactory("greeter");
+  const contract = await contractFactory.deploy("Hello, Hardhat!");
+  await contract.deployed();
+  console.log("contract deployed at:", contract.address);
 });
 
 task("balance", "Prints an account's balance")
   .addParam("account", "The account's address")
-  .setAction(async (taskArgs) => {
-    const account = web3.utils.toChecksumAddress(taskArgs.account);
-    const balance = await web3.eth.getBalance(account);
-
-    console.log(web3.utils.fromWei(balance, "ether"), "ETH");
+  .setAction(async ({ account }) => {
+    const provider = await ethers.provider;
+    const balance = await provider.getBalance(account);
+    console.log(hre.ethers.utils.formatEther(balance), "ETH");
   });
 
+
 module.exports = {
   defaultNetwork: "local",
   networks: {
@@ -39,25 +39,21 @@ module.exports = {
     local: {
       url: "http://127.0.0.1:8545",
     },
-    rinkeby: {
-      url: "", // rpc providers: infura, alchemy
-      accounts: [] // private keys
-    },
-    ropsten: {
+    goerli: {
       url: "", // rpc providers: infura, alchemy
       accounts: [] // private keys
     },
     polygonTest: {
-      url: "https://rpc-mumbai.maticvigil.com/", // rpc providers: polygon, infura, alchemy
+      url: "", // rpc providers: polygon, infura, alchemy
       accounts: []
     },
     polygonMain: {
-      url: "https://rpc-mainnet.maticvigil.com", // rpc providers: infura,polygon, alchemy
+      url: "", // rpc providers: infura,polygon, alchemy
       accounts: []
     }
   },
   solidity: {
-    version: "0.8.3",
+    version: "0.8.7",
     settings: {
       optimizer: {
         enabled: true,
@@ -74,4 +70,4 @@ module.exports = {
   mocha: {
     timeout: 20000
   }
-}
+};

package.json

@@ -1,21 +1,20 @@
 {
   "name": "hardhat-boilerplate",
   "version": "1.0.0",
-  "description": "hardhat and ethersjs boilerplate for ethereum development",
+  "description": "hardhat and ethersjs boilerplate for Dapp development",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "yarn hardhat test",
+    "compile": "yarn hardhat compile",
+    "deploy": "yarn hardhat deploy"
   },
   "keywords": [],
-  "author": "",
+  "author": "Salman Dabbakuti",
   "license": "ISC",
   "devDependencies": {
-    "@nomiclabs/hardhat-ethers": "^2.0.2",
-    "@nomiclabs/hardhat-waffle": "^2.0.1",
-    "@nomiclabs/hardhat-web3": "^2.0.0",
-    "chai": "^4.3.4",
-    "ethers": "^5.4.7",
-    "hardhat": "^2.6.4",
-    "web3": "^1.5.3"
+    "@nomiclabs/hardhat-ethers": "^2.1.1",
+    "chai": "^4.3.6",
+    "ethers": "^5.7.0",
+    "hardhat": "^2.10.2"
   }
-}
+}

scripts/deploy.js

@@ -0,0 +1,21 @@
+
+async function main() {
+  const contractFactory = await ethers.getContractFactory("greeter");
+  const contract = await contractFactory.deploy("Hello, Hardhat!");
+  await contract.deployed();
+  return contract;
+}
+
+main()
+  .then(async (contract) => {
+    console.log("Contract deployed at:", contract.address);
+    // Write to contract
+    const tx = await contract.setGreeting("Hello Ethereum Devs!");
+    await tx.wait();
+    // Read from contract
+    const greeting = await contract.getGreeting();
+    console.log('Greeting from contract:', greeting);
+  })
+  .catch((error) => {
+    console.error(error);
+  });

test/sample-test.js

@@ -1,16 +1,16 @@
 const { expect } = require("chai");
 const { ethers } = require("hardhat");
 
-describe("Greeter", function () {
+describe("Contract Tests", function () {
   it("Should return the new greeting once it's changed", async function () {
-    const Greeter = await ethers.getContractFactory("greeter");
-    const greeter = await Greeter.deploy("Hello, world!");
-    await greeter.deployed();
+    const contractFactory = await ethers.getContractFactory("greeter");
+    const contract = await contractFactory.deploy("Hello, world!");
+    await contract.deployed();
 
-    expect(await greeter.getGreeting()).to.equal("Hello, world!");
-    const setGreetingTx = await greeter.setGreeting("Hola, mundo!");
+    expect(await contract.getGreeting()).to.equal("Hello, world!");
+    const setGreetingTx = await contract.setGreeting("Hola, mundo!");
     // wait for the transaction to be mined
     await setGreetingTx.wait();
-    expect(await greeter.getGreeting()).to.equal("Hola, mundo!");
+    expect(await contract.getGreeting()).to.equal("Hola, mundo!");
   });
 });