.eslintrc

{
  "root": true,
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "project": [
      "./tsconfig.json"
    ]
  },
  "plugins": ["@typescript-eslint", "prettier", "no-null"],
  "extends": [
    "standard-with-typescript",
    "prettier",
    "eslint:recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:@typescript-eslint/recommended-requiring-type-checking"
  ],
  "rules": {
    "node/handle-callback-err": "off",
    "@typescript-eslint/space-before-function-paren": [
      "error",
      {
        "anonymous": "never",
        "named": "never",
        "asyncArrow": "always"
      }
    ],
    "no-param-reassign": "error",
    "no-shadow": "off",
    "@typescript-eslint/no-shadow": ["error"],
    "prettier/prettier": "warn",
    "no-null/no-null": "error",
    "@typescript-eslint/ban-types": [
      "error",
      {
        "types": {
          "null": null
        },
        "extendDefaults": true
      }
    ],
    "@typescript-eslint/explicit-module-boundary-types": "off",
    "@typescript-eslint/promise-function-async": "off",
    "@typescript-eslint/no-explicit-any": "error",
    "@typescript-eslint/no-non-null-assertion": "error",
    "@typescript-eslint/switch-exhaustiveness-check": "error",
    "@typescript-eslint/consistent-type-definitions": ["error", "type"],
    "@typescript-eslint/explicit-function-return-type": "off"
  }
}