.eslintrc

{
  "parser": "babel-eslint",
  "parserOptions": {
    "ecmaVersion": 7,
    "ecmaFeatures": {
      "experimentalObjectRestSpread": true,
      "jsx": true
    },
    "sourceType": "module"
  },
  "extends": [
    "prettier",
    "prettier/react",
    "plugin:jest/recommended"
  ],
  "plugins": [
    "promise",
    "react",
    "jest"
  ],
  "env": {
    "es6": true,
    "node": true,
    "jest/globals": true
  },
  "globals": {
    "document": false,
    "navigator": false,
    "window": false,
    "BROWSER": false,
    "URL": false,
    "fetch": false
  },
  "rules": {
    "camelcase": 0,
    "constructor-super": 2,
    "default-case": [2, { "commentPattern": "^no default$" }],
    "eqeqeq": [2, "allow-null"],
    "handle-callback-err": [2, "^(err|error)$" ],
    "new-cap": [2, { "newIsCap": true, "capIsNew": false }],
    "no-alert": 1,
    "no-array-constructor": 2,
    "no-caller": 2,
    "no-case-declarations": 0,
    "no-class-assign": 2,
    "no-cond-assign": 2,
    "no-const-assign": 2,
    "no-control-regex": 2,
    "no-debugger": 2,
    "no-delete-var": 2,
    "no-dupe-args": 2,
    "no-dupe-class-members": 2,
    "no-dupe-keys": 2,
    "no-duplicate-case": 2,
    "no-duplicate-imports": 2,
    "no-empty-character-class": 2,
    "no-empty-pattern": 2,
    "no-eval": 2,
    "no-ex-assign": 2,
    "no-extend-native": 2,
    "no-extra-bind": 2,
    "no-extra-boolean-cast": 2,
    "no-fallthrough": 2,
    "no-floating-decimal": 2,
    "no-func-assign": 2,
    "no-implied-eval": 2,
    "no-inner-declarations": [2, "functions"],
    "no-invalid-regexp": 2,
    "no-irregular-whitespace": 2,
    "no-iterator": 2,
    "no-label-var": 2,
    "no-labels": [2, { "allowLoop": false, "allowSwitch": false }],
    "no-lone-blocks": 2,
    "no-loop-func": 2,
    "no-multi-str": 1,
    "no-native-reassign": 2,
    "no-negated-in-lhs": 2,
    "no-new": 2,
    "no-new-func": 2,
    "no-new-object": 2,
    "no-new-require": 2,
    "no-new-symbol": 2,
    "no-new-wrappers": 2,
    "no-obj-calls": 2,
    "no-octal": 2,
    "no-octal-escape": 2,
    "no-path-concat": 2,
    "no-proto": 2,
    "no-redeclare": 2,
    "no-regex-spaces": 2,
    "no-return-assign": [2, "except-parens"],
    "no-script-url": 2,
    "no-self-assign": 2,
    "no-self-compare": 2,
    "no-sequences": 2,
    "no-shadow-restricted-names": 2,
    "no-sparse-arrays": 2,
    "no-this-before-super": 2,
    "no-throw-literal": 2,
    "no-undef": 2,
    "no-undef-init": 2,
    "no-unexpected-multiline": 2,
    "no-unmodified-loop-condition": 2,
    "no-unneeded-ternary": [2, { "defaultAssignment": false }],
    "no-unreachable": 2,
    "no-unsafe-finally": 2,
    "no-unused-vars": [2, { "vars": "all", "args": "none" }],
    "no-useless-call": 2,
    "no-useless-computed-key": 2,
    "no-useless-concat": 2,
    "no-useless-constructor": 2,
    "no-useless-escape": 1,
    "no-var": 2,
    "no-with": 2,
    "prefer-const": 2,
    "prefer-rest-params": 2,
    "quotes": [2, "single", "avoid-escape"],
    "radix": 2,
    "use-isnan": 2,
    "valid-typeof": 2,
    "yoda": [2, "never"],

    // promise
    "promise/param-names": 2,

    // react
    "react/display-name": 0,
    "react/jsx-handler-names": [2, {
      "eventHandlerPrefix": "_handle"
    }],
    "react/jsx-no-duplicate-props": 2,
    "react/jsx-no-undef": 2,
    "react/jsx-pascal-case": 2,
    "react/jsx-sort-props": 2,
    "react/jsx-uses-react": 2,
    "react/jsx-uses-vars": 2,
    "react/no-did-mount-set-state": 0,
    "react/no-did-update-set-state": 2,
    "react/no-direct-mutation-state": 2,
    "react/no-multi-comp": 0,
    "react/no-string-refs": 2,
    "react/no-unknown-property": 2,
    "react/prefer-es6-class": 2,
    "react/prop-types": 0,
    "react/react-in-jsx-scope": 0,
    "react/self-closing-comp": 2,
    "react/sort-comp": 0,
    "react/sort-prop-types": 2,
    "react/wrap-multilines": 0
  }
}