.eslintrc.js

module.exports = {
  root: true,
  parser: '@typescript-eslint/parser',
  plugins: ['@typescript-eslint', 'import', 'prettier'],
  extends: [
    'eslint:recommended',
    'plugin:@typescript-eslint/recommended',
    'plugin:node/recommended',
  ],
  settings: {
    node: {
      tryExtensions: ['.js', '.json', '.ts', '.d.ts'],
    },
    'import/extensions': ['.js', '.json', '.ts', '.d.ts'],
    'import/external-module-folders': ['node_modules', 'node_modules/@types'],
    'import/parsers': {
      '@typescript-eslint/parser': ['.ts'],
    },
    'import/resolver': {
      node: {
        extensions: ['.js', '.json', '.ts', '.d.ts'],
      },
    },
  },
  rules: {
    '@typescript-eslint/consistent-type-imports': ['error', { prefer: 'type-imports' }],
    'import/order': [
      'error',
      {
        groups: ['builtin', 'external', 'internal', 'parent', 'sibling', 'index', 'object'],
        'newlines-between': 'always',
        alphabetize: {
          order: 'asc',
          caseInsensitive: true,
        },
      },
    ],
    'import/no-cycle': ['error'],
    'prettier/prettier': 'error',
  },
  overrides: [
    {
      files: ['*.ts'],
      rules: {
        '@typescript-eslint/explicit-function-return-type': 'off',
        '@typescript-eslint/explicit-module-boundary-types': 'off',
        '@typescript-eslint/no-use-before-define': 'off',
        'node/no-unsupported-features/es-syntax': 'off',
      },
    },
    {
      files: ['*.spec.ts'],
      rules: {
        '@typescript-eslint/no-var-requires': 'off',
        'node/no-missing-import': 'off',
      },
    },
  ],
};