.eslintrc.js

module.exports = {
  env: {
    node: true,
    commonjs: true,
    es2021: true,
    jest: true,
  },
  extends: [
    'eslint:recommended',
    'airbnb-base',
  ],
  parserOptions: {
    ecmaVersion: 12,
    sourceType: 'module',
  },
  globals: {
    context: 'readonly',
  },
  ignorePatterns: ['node_modules/'],
  plugins: ['import'],
  rules: {
    indent: ['error', 2],
    'no-trailing-spaces': 'error',
    'space-infix-ops': 'error',
    'no-multi-spaces': 'error',
    curly: 'error',
    'brace-style': 'error',
    'no-whitespace-before-property': 'error',
    'func-call-spacing': ['error', 'never'],
    'keyword-spacing': ['error', { before: true, after: true }],
    'comma-spacing': ['error', { before: false, after: true }],
    'comma-style': ['error', 'last'],
    'comma-dangle': ['error', 'always-multiline'],
    'space-in-parens': ['error', 'never'],
    'block-spacing': 'error',
    'array-bracket-spacing': ['error', 'never'],
    'object-curly-spacing': ['error', 'always'],
    'key-spacing': ['error', { mode: 'strict' }],
    'arrow-spacing': ['error', { before: true, after: true }],
    'linebreak-style': 'off',
    'no-shadow': 'off',
    'import/no-absolute-path': 'error',
    'consistent-return': 'off',
    'no-underscore-dangle': ['error', { allow: ['__MONGO_URI__', '_id'] }],
    'func-names': 'off',
    'no-param-reassign': ['error', { props: true, ignorePropertyModificationsFor: ['err', 'ctx'] }],
  },
};