.eslintrc.json

{
  "env": {
    "es6": true,
    "node": true,
    "jest": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:node/recommended",
    "prettier"
  ],
  "plugins": [
    "prettier"
  ],
  "parserOptions": {
    "ecmaVersion": 2018,
    "ecmaFeatures": {
      "impliedStrict": true,
      "classes": true
    }
  },
  "rules": {
    "indent": [
      "error",
      2,
      {
        "SwitchCase": 1
      }
    ],
    "linebreak-style": [
      "error",
      "unix"
    ],
    "quotes": [
      "error",
      "single"
    ],
    "semi": [
      "error",
      "never"
    ],
    "no-console": [
      0
    ],
    "node/exports-style": [
      "error",
      "module.exports"
    ],
    "prettier/prettier": [
      "error",
      {
        "singleQuote": true,
        "bracketSpacing": true,
        "jsxBracketSameLine": true,
        "semi": false,
        "parser": "flow"
      }
    ]
  }
}