.eslintrc.js

const path = require('path');

module.exports = {
  parser: '@typescript-eslint/parser',
  env: {
    browser: true,
    node: true,
    jest: true,
    es6: true,
    'cypress/globals': true,
    serviceworker: true,
  },
  plugins: ['react', 'flowtype', 'import', 'cypress', 'relay', '@typescript-eslint', 'react-hooks'],
  parserOptions: {
    ecmaVersion: 10,
    sourceType: 'module',
    ecmaFeatures: {
      modules: true,
    },
  },
  extends: [
    'eslint:recommended',
    'plugin:react/recommended',
    'plugin:import/errors',
    'plugin:relay/recommended',
    'plugin:@typescript-eslint/eslint-recommended',
    'plugin:@typescript-eslint/recommended',
    'prettier/@typescript-eslint',
  ],
  rules: {
    'comma-dangle': [2, 'always-multiline'],
    quotes: [2, 'single', { allowTemplateLiterals: true, avoidEscape: true }],
    'jsx-quotes': [2, 'prefer-single'],
    'react/prop-types': 0,
    'no-case-declarations': 0,
    'react/jsx-no-bind': 0,
    'react/display-name': 0,
    'new-cap': 0,
    'no-unexpected-multiline': 0,
    'no-class-assign': 1,
    'no-console': 2,
    'object-curly-spacing': [1, 'always'],
    'import/first': 2,
    'import/default': 0,
    'no-unused-vars': ['error', { ignoreRestSiblings: true }],
    'no-extra-boolean-cast': 0,
    'import/named': 0,
    'import/namespace': [2, { allowComputed: true }],
    'import/no-duplicates': 2,
    'import/order': [2, { 'newlines-between': 'always-and-inside-groups' }],
    'react/no-children-prop': 1,
    'react/no-deprecated': 1,
    'import/no-cycle': 1,
    'import/no-self-import': 1,
    'relay/graphql-syntax': 'error',
    'relay/compat-uses-vars': 'warn',
    'relay/graphql-naming': 'error',
    'relay/generated-flow-types': 'warn',
    'relay/no-future-added-value': 'warn',
    'relay/unused-fields': 0,
    indent: 0,
    '@typescript-eslint/indent': 0,
    '@typescript-eslint/camelcase': 0,
    '@typescript-eslint/explicit-function-return-type': 0,
    'interface-over-type-literal': 0,
    '@typescript-eslint/consistent-type-definitions': 0,
    '@typescript-eslint/prefer-interface': 0,
    'lines-between-class-members': 0,
    '@typescript-eslint/explicit-member-accessibility': 0,
    '@typescript-eslint/no-non-null-assertion': 0,
    '@typescript-eslint/no-unused-vars': [
      'error',
      {
        ignoreRestSiblings: true,
      },
    ],
    '@typescript-eslint/no-var-requires': 1,
    'react-hooks/rules-of-hooks': 'error',
    // disable as it can cause more harm than good
    //'react-hooks/exhaustive-deps': 'warn',
    '@typescript-eslint/no-empty-function': 1,
    '@typescript-eslint/interface-name-prefix': 0,
  },
  settings: {
    'import/resolver': {
      node: true,
      'eslint-import-resolver-typescript': true,
      'eslint-import-resolver-lerna': {
        packages: path.resolve(__dirname, 'packages'),
      },
    },
  },
};