My eslintrc favourite configuration! :)

.eslintrc.js

module.exports = {
  parser: require.resolve("babel-eslint"),

  env: {
    es6: true
  },

  parserOptions: {
    sourceType: "module",
    ecmaFeatures: {
      jsx: true
    }
  },

  extends: [
    require.resolve("eslint-config-prettier"),
    require.resolve("eslint-config-prettier/flowtype"),
    require.resolve("eslint-config-prettier/react")
  ],

  plugins: ["flowtype", "import", "jest", "prettier", "react"],

  rules: {
    "constructor-super": "error",
    "no-case-declarations": "error",
    "no-class-assign": "error",
    "no-cond-assign": "error",
    "no-const-assign": "error",
    "no-constant-condition": "error",
    "no-control-regex": "error",
    "no-delete-var": "error",
    "no-dupe-args": "error",
    "no-dupe-class-members": "error",
    "no-dupe-keys": "error",
    "no-duplicate-case": "error",
    "no-empty": "error",
    "no-empty-character-class": "error",
    "no-empty-pattern": "error",
    "no-ex-assign": "error",
    "no-extra-boolean-cast": "error",
    "no-extra-semi": "error",
    "no-fallthrough": "error",
    "no-func-assign": "error",
    "no-global-assign": "error",
    "no-inner-declarations": "error",
    "no-invalid-regexp": "error",
    "no-new-symbol": "error",
    "no-obj-calls": "error",
    "no-octal": "error",
    "no-redeclare": "error",
    "no-regex-spaces": "error",
    "no-self-assign": "error",
    "no-sparse-arrays": "error",
    "no-this-before-super": "error",
    "no-unexpected-multiline": "error",
    "no-unreachable": "error",
    "no-unsafe-finally": "error",
    "no-unsafe-negation": "error",
    "no-unused-labels": "error",
    "no-unused-vars": "warn",
    "require-yield": "error",
    "use-isnan": "error",
    "valid-typeof": "error",

    "flowtype/boolean-style": ["error", "boolean"],
    "flowtype/define-flow-type": "error",
    "flowtype/no-dupe-keys": "error",
    "flowtype/no-primitive-constructor-types": "error",
    "flowtype/no-weak-types": "off",
    "flowtype/require-parameter-type": "off",
    "flowtype/require-return-type": "off",
    "flowtype/require-valid-file-annotation": "error",
    "flowtype/require-variable-type": "off",
    "flowtype/sort-keys": "off",
    "flowtype/type-id-match": "off",
    "flowtype/use-flow-type": "error",
    "flowtype/valid-syntax": "error",

    "import/no-unresolved": "error",
    "import/named": "error",
    "import/default": "off",
    "import/namespace": "off",
    "import/export": "error",
    "import/no-named-as-default": "off",
    "import/no-named-as-default-member": "off",
    "import/no-deprecated": "off",
    "import/no-extraneous-dependencies": "off",
    "import/no-commonjs": "warn",
    "import/no-amd": "error",
    "import/no-nodejs-modules": "off",
    "import/imports-first": "warn",
    "import/no-duplicates": "error",
    "import/no-namespace": "off",
    "import/extensions": ["error", { js: "never", json: "always" }],
    "import/order": "off",

    "jest/no-disabled-tests": "error",
    "jest/no-focused-tests": "error",
    "jest/no-identical-title": "error",
    "jest/valid-expect": "error",

    "react/display-name": "off",
    "react/forbid-prop-types": "off",
    "react/no-danger": "error",
    "react/no-deprecated": "error",
    "react/no-did-mount-set-state": "error",
    "react/no-did-update-set-state": "error",
    "react/no-direct-mutation-state": "error",
    "react/no-is-mounted": "error",
    "react/no-multi-comp": "off",
    "react/no-set-state": "off",
    "react/no-string-refs": "error",
    "react/no-unknown-property": "error",
    "react/prefer-es6-class": "error",
    "react/prop-types": "off",
    "react/react-in-jsx-scope": "error",
    "react/require-render-return": "error",
    "react/self-closing-comp": "error",
    "react/sort-comp": "warn",
    "react/sort-prop-types": "off",
    "react/jsx-boolean-value": ["error", "never"],
    "react/jsx-handler-names": "off",
    "react/jsx-key": "error",
    "react/jsx-no-bind": "off",
    "react/jsx-no-duplicate-props": "error",
    "react/jsx-no-literals": "off",
    "react/jsx-no-undef": "error",
    "react/jsx-pascal-case": "error",
    "react/jsx-sort-props": "off",
    "react/jsx-uses-react": "error",
    "react/jsx-uses-vars": "error",
    "react/prefer-stateless-function": "off",
    "prettier/prettier": [
      "error",
      {
        trailingComma: "es5",
        singleQuote: false,
        jsxBracketSameLine: false,
        parser: "flow",
        useTabs: true,
        printWidth: 80,
        tabWidth: 2
      }
    ]
  },
  "settings": {
		"import/resolver": {
			"node": {
				"extensions": [".js", ".native.js", ".ios.js", ".android.js"]
			}
		}
	},
  overrides: {
    files: ["**/__tests__/**/*.js", "**/?(*.)(spec|test).js"],
    env: {
      jest: true
    }
  }
};

Installed by
npm i --save-dev eslint eslint-plugin-flowtype eslint-plugin-import eslint-plugin -react babel-eslint eslint-plugin-prettier eslint-config-prettier babel-eslint

npm i eslint-plugin-jest@latest --save-dev