package.json

{
  "name": "sample2",
  "private": true,
  "proxy": {
    "/api": {
      "target": "http://localhost:3001"
    }
  },
  "dependencies": {
    "@rails/webpacker": "^4.0.0-rc.2",
    "axios": "^0.18.0",
    "babel-preset-react": "^7.0.0-beta.3",
    "prop-types": "^15.6.2",
    "react": "^16.7.0",
    "react-dom": "^16.7.0"
  },
  "devDependencies": {
    "@types/react": "^16.7.18",
    "@types/react-dom": "^16.0.11",
    "awesome-typescript-loader": "^5.2.1",
    "babel-loader": "^8.0.4",
    "babel-plugin-syntax-dynamic-import": "^6.18.0",
    "babel-plugin-transform-class-properties": "^6.24.1",
    "babel-plugin-transform-object-rest-spread": "^6.26.0",
    "babel-preset-env": "^1.7.0",
    "extract-text-webpack-plugin": "^4.0.0-beta.0",
    "ts-loader": "^5.3.2",
    "typescript": "^3.2.2",
    "webpack": "^4.28.2",
    "webpack-cli": "^3.1.2",
    "webpack-dev-server": "^3.1.2"
  },
  "scripts": {
    "debug": "bin/webpack-dev-server --mode=development",
    "build": "bin/webpack-dev-server --mode=production",
    "start": "rails s",
    "upgrade:webpacker": "bundle update webpacker && rails webpacker:binstubs && yarn upgrade @rails/webpacker --latest && yarn add webpack-dev-server@^3.1.2"
  }
}