.eslintrc.js

module.exports = {
  parser: 'babel-eslint',
  parserOptions: {
    ecmaFeatures: {
      generators: true,
      experimentalObjectRestSpread: true,
    },
    sourceType: 'module',
    allowImportExportEverywhere: false,
  },
  extends: [
    'eslint:recommended',
    'plugin:import/errors',
    'plugin:import/warnings',
    'plugin:prettier/recommended',
    'plugin:promise/recommended',
    'plugin:security/recommended',
  ],
  plugins: ['compat', 'promise', 'security'],
  settings: {
    'import/resolver': {
      node: {
        extensions: ['.js', '.jsx', '.json', '.css'],
        paths: './src',
      },
    },
    polyfills: ['fetch', 'promises'],
  },
  env: {
    node: true,
  },
  globals: {
    __DEV__: true,
    __dirname: true,
    after: true,
    afterAll: true,
    afterEach: true,
    artifacts: true,
    before: true,
    beforeAll: true,
    beforeEach: true,
    console: true,
    contract: true,
    describe: true,
    expect: true,
    fetch: true,
    global: true,
    it: true,
    module: true,
    process: true,
    Promise: true,
    require: true,
    setTimeout: true,
    test: true,
    xdescribe: true,
    xit: true,
    web3: true,
  },
  rules: {
    'compat/compat': 'error',
    'import/first': 'error',
    'import/no-anonymous-default-export': 'error',
    'import/no-unassigned-import': 'error',
    'import/prefer-default-export': 'error',
    'import/no-named-as-default': 'off',
    'import/no-unresolved': 'error',
    'promise/avoid-new': 'off',
    'security/detect-object-injection': 'off',
    'arrow-body-style': 'off',
    'lines-between-class-members': ['error', 'always'],
    'no-console': ['error', { allow: ['assert'] }],
    'no-shadow': 'error',
    'no-var': 'error',
    'padding-line-between-statements': [
      'error',
      { blankLine: 'always', prev: 'class', next: '*' },
      { blankLine: 'always', prev: 'do', next: '*' },
      { blankLine: 'always', prev: '*', next: 'export' },
      { blankLine: 'always', prev: 'for', next: '*' },
      { blankLine: 'always', prev: 'if', next: '*' },
      { blankLine: 'always', prev: 'switch', next: '*' },
      { blankLine: 'always', prev: 'try', next: '*' },
      { blankLine: 'always', prev: 'while', next: '*' },
      { blankLine: 'always', prev: 'with', next: '*' },
    ],
    'prefer-const': 'error',
  },
}