adding actions pipeline, using env vars and other improvements

.env.example

@@ -0,0 +1,6 @@
+# Be aware. dont commit this file or any of theses keys to your repo.
+PRIV_KEY=
+ETHEREUM_MAINNET_RPC_URL=
+GOERLI_RPC_URL=
+POLYGON_MUMBAI_RPC_URL=
+POLYGON_MAINNET_RPC_URL=

.github/workflows/ci.yml

@@ -0,0 +1,41 @@
+# adding tests
+# This workflow will do a clean install of node dependencies, cache/restore them, build the source code and run tests across different versions of node
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-nodejs-with-github-actions
+
+name: Node.js CI
+
+on:
+  push:
+    branches: [main, develop, init, "feat/*"]
+  pull_request:
+    branches: [main, develop, init, "feat/*"]
+
+jobs:
+  e2e-test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        node-version: [14.x, 16.x, 18.x]
+        # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Use Node.js ${{ matrix.node-version }} on ${{ matrix.os }}
+        uses: actions/setup-node@v3
+        # uses: borales/[email protected]
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: yarn
+      - name: "Install packages"
+        run: yarn
+      - name: "Rename .env.example to .env"
+        run: mv .env.example .env
+      - name: "Start hardhat node"
+        run: yarn hardhat node & sleep 3
+      - name: "Compile contracts"
+        run: yarn compile
+      - name: "Run tests"
+        run: yarn test
+      - name: "Deploy contracts"
+        run: yarn deploy

README.md

@@ -2,6 +2,8 @@
 
 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.
 
+> Rename `env.example` to `.env` and add your env specific keys.
+
 Try running some of the following tasks:
 
 ```shell

contracts/greeter.sol → contracts/Greeter.sol

@@ -1,7 +1,7 @@
 //SPDX-License-Identifier: MIT
-pragma solidity 0.8.7;
+pragma solidity 0.8.16;
 
-contract greeter {
+contract Greeter {
     string private greeting;
 
     constructor(string memory _greeting) {

hardhat.config.js

@@ -1,4 +1,8 @@
 require("@nomiclabs/hardhat-ethers");
+require('dotenv').config();
+
+// defining accounts to reuse.
+const accounts = process.env.PRIV_KEY ? [process.env.PRIV_KEY] : [];
 
 // This is a sample Hardhat task. To learn how to create your own go to
 // https://hardhat.org/guides/create-task.html
@@ -15,7 +19,7 @@ task("accounts", "Prints the list of accounts with balances", async () => {
 });
 
 task("deploy", "Deploys Contract", async () => {
-  const contractFactory = await ethers.getContractFactory("greeter");
+  const contractFactory = await ethers.getContractFactory("Greeter");
   const contract = await contractFactory.deploy("Hello, Hardhat!");
   await contract.deployed();
   console.log("contract deployed at:", contract.address);
@@ -39,21 +43,25 @@ module.exports = {
     local: {
       url: "http://127.0.0.1:8545",
     },
+    main: {
+      url: process.env.ETHEREUM_MAINNET_RPC_URL,
+      accounts: accounts
+    },
     goerli: {
-      url: "", // rpc providers: infura, alchemy
-      accounts: [] // private keys
+      url: process.env.GOERLI_RPC_URL,
+      accounts // private keys
     },
     polygonTest: {
-      url: "", // rpc providers: polygon, infura, alchemy
-      accounts: []
+      url: process.env.POLYGON_MUMBAI_RPC_URL,
+      accounts
     },
     polygonMain: {
-      url: "", // rpc providers: infura,polygon, alchemy
-      accounts: []
+      url: process.env.POLYGON_MAINNET_RPC_URL,
+      accounts
     }
   },
   solidity: {
-    version: "0.8.7",
+    version: "0.8.16",
     settings: {
       optimizer: {
         enabled: true,

package.json

@@ -14,7 +14,8 @@
   "devDependencies": {
     "@nomiclabs/hardhat-ethers": "^2.1.1",
     "chai": "^4.3.6",
+    "dotenv": "^16.0.3",
     "ethers": "^5.7.0",
     "hardhat": "^2.10.2"
   }
-}
+}

scripts/deploy.js

@@ -1,6 +1,6 @@
 
 async function main() {
-  const contractFactory = await ethers.getContractFactory("greeter");
+  const contractFactory = await ethers.getContractFactory("Greeter");
   const contract = await contractFactory.deploy("Hello, Hardhat!");
   await contract.deployed();
   return contract;

test/sample-test.js

@@ -3,7 +3,7 @@ const { ethers } = require("hardhat");
 
 describe("Contract Tests", function () {
   it("Should return the new greeting once it's changed", async function () {
-    const contractFactory = await ethers.getContractFactory("greeter");
+    const contractFactory = await ethers.getContractFactory("Greeter");
     const contract = await contractFactory.deploy("Hello, world!");
     await contract.deployed();
 

yarn.lock

@@ -1061,6 +1061,11 @@ [email protected]:
   resolved "https://registry.yarnpkg.com/diff/-/diff-5.0.0.tgz#7ed6ad76d859d030787ec35855f5b1daf31d852b"
   integrity sha512-/VTCrvm5Z0JGty/BWHljh+BAiw3IK+2j87NGMu8Nwc/f48WoDAC395uomO9ZD117ZOBaHmkX1oyLvkVM/aIT3w==
 
+dotenv@^16.0.3:
+  version "16.0.3"
+  resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-16.0.3.tgz#115aec42bac5053db3c456db30cc243a5a836a07"
+  integrity sha512-7GO6HghkA5fYG9TYnNxi14/7K9f5occMlp3zXAuSxn7CKCxt9xbNWG7yF8hTCSUchlfWSe3uLmlPfigevRItzQ==
+
 [email protected], elliptic@^6.5.2, elliptic@^6.5.4:
   version "6.5.4"
   resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.4.tgz#da37cebd31e79a1367e941b592ed1fbebd58abbb"