.eslintrc.js

module.exports = {
  root: true,
  ignorePatterns: [
    'node_modules/*',
    '**/node_modules/',
    'cdk.out/',
    '.prettierrc.js',
    '.eslintrc.js',
  ],
  parser: '@typescript-eslint/parser',
  parserOptions: {
    project: './tsconfig.eslint.json',
    tsconfigRootDir: './',
  },
  plugins: ['import', '@typescript-eslint', 'jest', 'prettier'],
  extends: [
    'eslint:recommended',
    'airbnb-base',
    'prettier',
    'plugin:prettier/recommended',
    'plugin:@typescript-eslint/recommended',
    'plugin:@typescript-eslint/recommended-requiring-type-checking',
  ],
  rules: {
    'no-use-before-define': [
      'error',
      {functions: false, classes: true, variables: true},
    ],
    'import/no-extraneous-dependencies': [
      'error',
      {
        devDependencies: true,
        optionalDependencies: false,
        peerDependencies: false,
      },
    ],
    // for lambda layer imports starting with /opt/nodejs/ directory
    'import/no-unresolved': ['warn', {ignore: ['/opt/*']}],
    'import/prefer-default-export': 'off',
    'lines-between-class-members': [
      'error',
      'always',
      {exceptAfterSingleLine: true},
    ],
    'no-shadow': 'off',
    '@typescript-eslint/no-shadow': ['error'],
    'no-new': 'off',
    'no-console': 'off',
    'no-unused-vars': 'off',
    '@typescript-eslint/no-unused-vars': 'error',
    'no-useless-constructor': 'off',
    '@typescript-eslint/no-useless-constructor': 'error',
    'jest/no-disabled-tests': 'warn',
    'jest/no-focused-tests': 'error',
    'jest/no-identical-title': 'error',
    'jest/prefer-to-have-length': 'warn',
    'jest/valid-expect': 'error',
    'prettier/prettier': ['error'],
    'import/extensions': [
      'error',
      'ignorePackages',
      {
        js: 'never',
        jsx: 'never',
        ts: 'never',
        tsx: 'never',
      },
    ],
  },
  env: {
    'jest/globals': true,
  },
  globals: {
    page: true,
    browser: true,
    context: true,
    jestPuppeteer: true,
    document: true,
    localStorage: true,
  },
  settings: {
    'import/core-modules': ['aws-sdk'],
    'import/parsers': {
      '@typescript-eslint/parser': ['.ts', '.tsx'],
    },
    'import/resolver': {
      typescript: {},
      node: {
        paths: ['src'],
        moduleDirectory: ['node_modules', 'src/'],
        extensions: ['.js', '.jsx', '.ts', '.tsx', '.json'],
      },
    },
  },
};