.eslintrc.json

{
  "env": {
    "browser": true,
    "es6": true,
    "mocha": true,
    "node": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:flowtype/recommended",
    "plugin:prettier/recommended",
    "plugin:react/recommended"
  ],
  "parser": "babel-eslint",
  "parserOptions": {
    "ecmaFeatures": {
      "experimentalObjectRestSpread": true,
      "jsx": true
    },
    "ecmaVersion": 6,
    "sourceType": "module"
  },
  "plugins": ["flowtype", "react"],
  "rules": {
    "comma-dangle": ["error", "always-multiline"],
    "flowtype/no-types-missing-file-annotation": "off",
    "indent": ["error", 2],
    "linebreak-style": ["error", "unix"],
    "quotes": ["error", "single"],
    "semi": ["error", "always"]
  },
  "settings": {
    "react": {
      "flowVersion": "0.79",
      "version": "16.2"
    }
  }
}