@flizpay-de/eslint/backend.js

Shared ESLint flat-config for FlizPay projects

import base from "./base.js";
import { FlatCompat } from "@eslint/eslintrc";

const compat = new FlatCompat();

const backendOverlay = [
  ...compat.extends("plugin:n/recommended", "plugin:n/recommended-module"),
  ...compat.config({
    plugins: ["n"],
    env: { node: true, es2023: true },
    settings: { node: { version: ">=18" } },
  }),
  {
    rules: {
      /* --- Node core hygiene --------------------------------- */
      "n/no-missing-import": "error", // unresolved path or package
      "n/no-process-exit": "error", // disallow `process.exit()` in app code
      "n/no-missing-require": "off", // turn of this rule cause it clashes with our @... imports.

      /* --- Callback conventions ------------------------------ */
      "handle-callback-err": ["error", "^err(or)?$"], // callback's 1st arg error not handled
      "callback-return": ["error", ["callback", "cb", "next"]], // code after invoking callback

      /* --- Security-focused rules (from eslint-plugin-security) */
      "security/detect-non-literal-require": "error", // variable-based `require()` path
      "security/detect-non-literal-fs-filename": "error", // variable filename to `fs.*`
      "security/detect-child-process": "error", // spawning child processes

      "max-params": "off", // no max-params limit on backend
    },
  },
];

export default [...base, ...backendOverlay];