Build a Fullstack App from Scratch (feat Next.js)

eslint

module.exports = {
  extends: ["next/core-web-vitals", "airbnb", "airbnb/hooks", "prettier"],
  plugins: ["react", "@typescript-eslint", "prettier"],
  env: {
    browser: true,
    es2021: true,
    node: true,
  },
  parser: "@typescript-eslint/parser",
  parserOptions: {
    ecmaFeatures: {
      jsx: true,
    },
    ecmaVersion: 13,
    sourceType: "module",
  },
  rules: {
    "react/react-in-jsx-scope": "off",
    "react/prop-types": "off",
    "react/jsx-props-no-spreading": "off",
    "import/prefer-default-export": "off",
    "no-param-reassign": "off",
    "import/extensions": [
      "error",
      "ignorePackages",
      {
        ts: "never",
        tsx: "never",
      },
    ],
    "consistent-return": "off",
    "arrow-body-style": "off",
    "prefer-arrow-callback": "off",
    "react/jsx-filename-extension": "off",
    "react/function-component-definition": [
      "error",
      {
        namedComponents: "arrow-function",
        unnamedComponents: "arrow-function",
      },
    ],
    "prettier/prettier": "warn",
  },
};

tsconfig

{
  "compilerOptions": {
    "target": "es5",
    "lib": ["dom", "dom.iterable", "esnext"],
    "allowJs": true,
    "skipLibCheck": true,
    "strict": false,
    "downlevelIteration": true,
    "forceConsistentCasingInFileNames": true,
    "noEmit": true,
    "incremental": true,
    "esModuleInterop": true,
    "module": "esnext",
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "isolatedModules": true,
    "jsx": "preserve"
  },
  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx"],
  "exclude": ["node_modules"]
}

.babelrc

{
  "presets": ["next/babel"],
  "plugins": ["superjson-next"]
}