.eslintrc.js

module.exports = {
  root: true,
  parser: '@typescript-eslint/parser',
  parserOptions: {
    tsconfigRootDir: __dirname,
    project: ['./tsconfig.json'],
  },
  ignorePatterns: ['*.config.js'],
  plugins: ['@typescript-eslint', 'jest', 'simple-import-sort'],
  extends: [
    'eslint:recommended',
    'plugin:@typescript-eslint/eslint-recommended',
    'plugin:@typescript-eslint/recommended',
    'plugin:@typescript-eslint/recommended-requiring-type-checking',
    'plugin:import/errors',
    'plugin:import/warnings',
    'plugin:jest/recommended',
  ],
  rules: {
    'newline-before-return': 'error',
    '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_' }],
    'simple-import-sort/imports': 'error',
    'sort-imports': 'off',
    'import/first': 'error',
    'import/newline-after-import': 'error',
    'import/no-duplicates': 'error',
    'no-multiple-empty-lines': 'error',
    'lines-between-class-members': 'off',
    '@typescript-eslint/lines-between-class-members': [
      'error',
      'always',
      { exceptAfterSingleLine: true, exceptAfterOverload: true },
    ],
    '@typescript-eslint/no-empty-function': 'off',
    '@typescript-eslint/require-await': 'off',
  },
  settings: {
    'import/parsers': {
      '@typescript-eslint/parser': ['.ts'],
    },
    'import/resolver': {
      typescript: {
        alwaysTryTypes: true,
      },
    },
  },
  overrides: [
    {
      files: '*.ts',
      parserOptions: {
        project: ['./tsconfig.json'],
      },
    },
    {
      files: '*.test.ts',
      rules: {
        '@typescript-eslint/no-explicit-any': 'off',
        'jest/no-conditional-expect': 'off',
        'jest/no-try-expect': 'off',
        '@typescript-eslint/no-unsafe-assignment': 'off',
        '@typescript-eslint/no-unsafe-member-access': 'off',
      },
    },
  ],
};