.eslintrc.json

{
  "parserOptions": {
    "ecmaVersion": 8
  },
  "plugins": [
    "promise",
    "node",
    "import"
  ],
  "rules": {
    "promise/always-return": "error",
    "promise/no-return-wrap": "error",
    "promise/param-names": "error",
    "promise/catch-or-return": "error",
    "promise/no-native": "off",
    "promise/no-nesting": "warn",
    "promise/no-promise-in-callback": "warn",
    "promise/no-callback-in-promise": "warn",
    "promise/avoid-new": "warn",
    "promise/no-new-statics": "error",
    "promise/no-return-in-finally": "warn",
    "promise/valid-params": "warn",
    "node/exports-style": ["error", "module.exports"],
    "import/no-unresolved": [2, {"commonjs": true, "amd": true}],
    "import/named": 2,
    "import/namespace": 2,
    "import/default": 2,
    "import/export": 2
  },
  "extends": [
    "eslint:recommended",
    "plugin:node/recommended",
    "plugin:import/errors",
    "plugin:import/warnings"
  ],
  "env": {
    "mocha": true,
    "es6": true,
    "node": true
  }
}