.eslintrc.json

{
  "parser": "@typescript-eslint/parser",
  "env": {
    "es6": true,
    "node": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:prettier/recommended",
    "plugin:jest/recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended"
  ],
  "ignorePatterns": ["db-scripts/**", "migrations/**"],
  "parserOptions": {
    "ecmaVersion": 9,
    "sourceType": "module"
  },
  "plugins": ["jest", "prettier", "@typescript-eslint"],
  "overrides": [
    {
      "files": ["src/*.js"]
    }
  ],
  "rules": {
    "no-unused-vars": "off",
    "@typescript-eslint/no-empty-interface": "off",
    "@typescript-eslint/no-explicit-any": "off",
    "@typescript-eslint/explicit-module-boundary-types": "off",
    "@typescript-eslint/no-unused-vars": [
      "error",
      {
        "vars": "all",
        "args": "all",
        "argsIgnorePattern": "^_",
        "varsIgnorePattern": "^_"
      }
    ],
    "no-use-before-define": [
      "error",
      {
        "functions": true,
        "classes": true,
        "variables": true
      }
    ],
    "quotes": [
      "error",
      "double",
      {
        "avoidEscape": true
      }
    ],
    "eqeqeq": ["error", "smart"],
    "max-depth": ["warn", 3],
    "eol-last": ["error", "always"],
    "linebreak-style": ["error", "unix"],
    "block-scoped-var": "error",
    "prefer-const": ["warn"],
    "prettier/prettier": "error",
    "no-var": ["warn"],
    "jest/no-test-callback": "off",
    "jest/no-mocks-import": "off",
    "jest/no-disabled-tests": "warn",
    "jest/no-focused-tests": "error",
    "jest/no-identical-title": "error",
    "jest/prefer-to-have-length": "warn",
    "jest/valid-expect": "error",
    "no-console": "error"
  }
}