.eslintrc.json

{
    "env": {
        "browser": true,
        "es6": true,
        "jest": true
    },
    "globals": {
        "OAUTH_GATEWAY_URL": "https://exmaple.com",
        "OAUTH_CLIENT_ID": "1234"
    },
    "settings": {
        "react": {
            "version": "detect"
        }
    },
    "extends": [
        "eslint:recommended",
        "plugin:react/recommended"
    ],
    "parserOptions": {
        "ecmaFeatures": {
            "jsx": true
        },
        "ecmaVersion": 8,
        "sourceType": "module"
    },
    "plugins": [
        "react"
    ],
    "rules": {
        "indent": [
            "error",
            4
        ],
        "linebreak-style": [
            "error",
            "unix"
        ],
        "quotes": [
            "error",
            "single"
        ],
        "semi": [
            "error",
            "always"
        ],
        "comma-dangle": [
            "error",
            "always-multiline"
        ]
    }
}