.eslintrc.json

{
  "root": true,
  "extends": [
    "groupon/typescript",
    "plugin:regexp/recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:@typescript-eslint/recommended-requiring-type-checking",
    "plugin:import/typescript"
  ],
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "project": "tsconfig.json"
  },
  "rules": {
    "node/no-unsupported-features/es-syntax": [
      "error",
      {
        "ignores": [
          "modules"
        ]
      }
    ],
    "node/no-extraneous-import": "off",
    "node/no-missing-import": "off",
    "@typescript-eslint/no-explicit-any": "off",
    "@typescript-eslint/no-unused-vars": [
      "error",
      {
        "ignoreRestSiblings": true
      }
    ]
  },
  "overrides": [
    {
      "files": [
        "*.test.*",
        "test/**"
      ],
      "env": {
        "mocha": true
      },
      "parserOptions": {
        "project": "test/tsconfig.json"
      }
    },
    {
      "files": [
        "typings/**/*.d.ts"
      ],
      "rules": {
        "import/no-extraneous-dependencies": [
          "error",
          {
            "devDependencies": true
          }
        ]
      }
    }
  ]
}