.eslintrc

{
    extends: [
        'airbnb',
        'plugin:flowtype/recommended'
    ],
    parser: 'babel-eslint',
    plugins: [
        'react',
        'flowtype'
    ],
    rules: {
        # Auto detect arrow body style
        arrow-body-style: ['error', 'as-needed'],

        # Always use parentheses around arrow function
        arrow-parens: ['error', 'always'],

        # Disable trailing comma
        comma-dangle: ['error', 'never'],

        # Use indent with 4 spaces
        indent: ['error', 4, {VariableDeclarator: {var: 2, let: 2, const: 2}, SwitchCase: 1}],

        # Use single quote in jsx attributes
        jsx-quotes: ['error', 'prefer-single'],

        # Allow max line length of 120
        max-len: ['error', 120],

        # Enforce spaces inside template literals
        template-curly-spacing: ['error', 'always'],

        # Allow interaction handlers on non-semantic elements
        jsx-a11y/no-static-element-interactions: 'off',

        # Use space inside curly brace
        react/jsx-curly-spacing: ['error', 'always'],

        # Use indent with 4 spaces for jsx
        react/jsx-indent: ['error', 4],

        # Use indent with 4 spaces in props
        react/jsx-indent-props: ['error', 4],

        # Allow .js & .jsx extension
        react/jsx-filename-extension: ['error', { 'extensions': ['.js', '.jsx'] }],

        # Detect missing key prop
        react/jsx-key: 'error',

        # Enforce component methods order
        react/sort-comp: 'off',

        # Prevent self closing tags for html component
        react/self-closing-comp: ['error', { 'component': true, 'html': false }],

        # Enforces consistent use of trailing commas in Object and Tuple annotations.
        flowtype/delimiter-dangle: ['error', 'never'],

        # Checks for duplicate properties in Object annotations.
        flowtype/no-dupe-keys: 'error',

        # Disallows use of primitive constructors as types (e.g. Boolean)
        flowtype/no-primitive-constructor-types: 'error',

        # Warns against weak type annotations (any, Object and Function).
        flowtype/no-weak-types: ['error', { 'any': false }],

        # Enforces consistent separators between properties in Flow object types.
        flowtype/object-type-delimiter: ['error', 'comma'],

        # Requires that all function parameters have type annotations.
        flowtype/require-parameter-type: ['error', { 'excludeArrowFunctions': true }],

        # Requires that functions have return type annotation.
        flowtype/require-return-type: ['error', { 'excludeArrowFunctions': true }],

        # Enforces consistent use of semicolons after type aliases.
        flowtype/semi: ['error', 'always']
    },

    env: {
        es6: true,
        browser: true,
        node: true,
        jest: true
    },

    parserOptions: {
        ecmaVersion: 6,
        sourceType: 'module',
        ecmaFeatures: {
            jsx: true
        }
    }
}