add keys to config file

hardhat.config.js

@@ -1,9 +1,25 @@
 require("@nomicfoundation/hardhat-toolbox");
+require("dotenv").config();
 
+const INFURA_API_KEY = process.env.INFURA_API_KEY;
+const ETHERSCAN_API_KEY = process.env.ETHERSCAN_API_KEY;
+const GOERLI_PRIVATE_KEY = process.env.GOERLI_PRIVATE_KEY;
+
+console.log(INFURA_API_KEY)
 /** @type import('hardhat/config').HardhatUserConfig */
 module.exports = {
   solidity: "0.8.18",
+  networks: {
+    goerli: {
+      url: `https://goerli.infura.io/v3/${INFURA_API_KEY}`,
+      accounts: [GOERLI_PRIVATE_KEY]
+    }
+  },
+  etherscan: {
+    apiKey: ETHERSCAN_API_KEY,
+  },
   mocha: {
     timeout: 100000000,
   }
+  
 };

package-lock.json

@@ -11,6 +11,7 @@
       "devDependencies": {
         "@nomicfoundation/hardhat-toolbox": "^3.0.0",
         "@openzeppelin/contracts": "^4.9.2",
+        "dotenv": "^16.3.1",
         "hardhat": "^2.16.1"
       }
     },
@@ -3186,6 +3187,18 @@
         "node": ">=8"
       }
     },
+    "node_modules/dotenv": {
+      "version": "16.3.1",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-16.3.1.tgz",
+      "integrity": "sha512-IPzF4w4/Rd94bA9imS68tZBaYyBWSCE47V1RGuMrB94iyTOIEwRmVL2x/4An+6mETpLrKJ5hQkB8W4kFAadeIQ==",
+      "dev": true,
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/motdotla/dotenv?sponsor=1"
+      }
+    },
     "node_modules/ecc-jsbn": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz",

package.json

@@ -13,7 +13,8 @@
   "license": "ISC",
   "devDependencies": {
     "@nomicfoundation/hardhat-toolbox": "^3.0.0",
-    "hardhat": "^2.16.1",
-    "@openzeppelin/contracts": "^4.9.2"
+    "@openzeppelin/contracts": "^4.9.2",
+    "dotenv": "^16.3.1",
+    "hardhat": "^2.16.1"
   }
 }