.eslintrc.json

{
  "settings": {
    "import/resolver": {
      "node": {
        "extensions": [
          ".js",
          ".jsx",
          ".ts",
          ".tsx"
        ]
      }
    }
  },
  "env": {
    "commonjs": true,
    "es6": true,
    "node": true
  },
  "extends": [
    "airbnb-base",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended"
  ],
  "plugins": [
    "prefer-arrow-functions"
  ],
  "globals": {
    "Atomics": "readonly",
    "SharedArrayBuffer": "readonly"
  },
  "parserOptions": {
    "ecmaVersion": 2018,
    "project": [
      "./tsconfig.eslint.json"
    ]
  },
  "rules": {
    "func-style": [
      "error",
      "expression"
    ],
    "prefer-arrow-functions/prefer-arrow-functions": [
      "warn",
      {
        "classPropertiesAllowed": false,
        "disallowPrototype": false,
        "returnStyle": "unchanged",
        "singleReturnOnly": false
      }
    ],
    "require-await":["error"],
    "global-require": 0,
    "no-void": 0,
    "@typescript-eslint/no-floating-promises": [
      "error"
    ],
    "@typescript-eslint/no-var-requires": 0,
    "class-methods-use-this": 0,
    "no-case-declarations": 0,
    "camelcase": 0,
    "jsx-a11y/click-events-have-key-events": 0,
    "no-underscore-dangle": [
      "error",
      {
        "allow": [
          "_id"
        ]
      }
    ],
    "max-len": [
      "error",
      {
        "code": 120
      }
    ],
    "import/extensions": [
      "error",
      "ignorePackages",
      {
        "js": "never",
        "jsx": "never",
        "ts": "never",
        "tsx": "never"
      }
   ]
  }
}