.eslintrc.json

{
  "parser": "babel-eslint",
  "extends": ["plugin:flowtype/recommended", "airbnb"],
  "env": {
    "browser": true,
    "jest": true
  },
  "plugins": ["react", "jsx-a11y", "import", "flowtype"],
  "rules": {
    "no-underscore-dangle": 0,
    "arrow-body-style": 0,
    "import/no-extraneous-dependencies": 0,
    "max-len": 0,
    "react/jsx-filename-extension": [
      "error",
      {
        "extensions": [".js", ".jsx"]
      }
    ],
    "global-require": "off",
    "import/prefer-default-export": "off",
    "implicit-arrow-linebreak": ["error", "beside"],
    "brace-style": [
      "error",
      "1tbs",
      {
        "allowSingleLine": true
      }
    ],
    "no-unused-expressions": ["error", { "allowTaggedTemplates": true }],
    "no-unused-vars": [
      "error",
      {
        "argsIgnorePattern": "^_"
      }
    ],
    "flowtype/use-flow-type": 1,
    "flowtype/define-flow-type": 1,
    "flowtype/no-types-missing-file-annotation": 0
  },
  "settings": {
    "flowtype": {
      "onlyFilesWithFlowAnnotation": false
    }
  }
}