set env variables config in webpack file

package.json

@@ -4,12 +4,14 @@
   "description": "",
   "main": "index.js",
   "scripts": {
-    "start": "webpack-dev-server --open --mode development",
-    "build": "webpack -p"
+    "dev": "webpack-dev-server --mode development --config webpack.config.js --open",
+    "build": "webpack -p",
+    "lint": "eslint --fix . && echo 'Lint complete.'"
   },
   "engines": {
     "node": "10.1.0",
-    "npm": "6.4.1"
+    "npm": "6.4.1",
+    "watch": "watch 'clear && npm run -s test | tap-nirvana && npm run -s lint' src"
   },
   "author": "Andres Alcocer",
   "license": "ISC",
@@ -38,6 +40,14 @@
     "copy-webpack-plugin": "^4.6.0",
     "css-loader": "^1.0.1",
     "dotenv": "^6.2.0",
+    "eslint": "^6.8.0",
+    "eslint-config-airbnb": "^18.1.0",
+    "eslint-config-prettier": "^6.11.0",
+    "eslint-plugin-import": "^2.20.2",
+    "eslint-plugin-jsx-a11y": "^6.2.3",
+    "eslint-plugin-prettier": "^3.1.3",
+    "eslint-plugin-react": "^7.20.0",
+    "eslint-plugin-react-hooks": "^2.5.1",
     "extract-text-webpack-plugin": "^3.0.2",
     "file-loader": "^2.0.0",
     "html-loader": "^0.5.5",
@@ -46,13 +56,16 @@
     "mini-css-extract-plugin": "^0.4.4",
     "node-sass": "^4.10.0",
     "optimize-css-assets-webpack-plugin": "^5.0.1",
+    "prettier": "^2.0.5",
     "sass-loader": "^7.1.0",
     "style-loader": "^0.23.1",
     "svg-inline-loader": "^0.8.0",
     "svg-react-loader": "^0.4.6",
+    "tap-nirvana": "^1.1.0",
     "uglifyjs-webpack-plugin": "^2.0.1",
+    "watch": "^1.0.2",
     "webpack": "^4.25.1",
     "webpack-cli": "^3.1.2",
     "webpack-dev-server": "^3.1.10"
   }
-}
+}