.eslintrc.json

{
  "root": true,
  "parserOptions": {
    "ecmaVersion": "latest",
    "sourceType": "module"
  },
  "env": {
    "es2021": true
  },
  "plugins": ["prettier", "unicorn", "import"],
  "extends": [
    "eslint:recommended",
    "plugin:import/recommended",
    "plugin:unicorn/recommended",
    // always make sure the prettier/recommended rules come last in array
    "plugin:prettier/recommended"
  ],
  "rules": {
    /* GENERAL */
    "prettier/prettier": "error",
    "no-console": "warn",

    /* IMPORTS */
    "no-restricted-imports": [
      "error",
      {
        "patterns": ["**/node_modules/*", "**/*.test.{js,ts}", "**/*.spec.{js,ts}", "**/*mock*.{js,ts}"]
      }
    ],

    /* FILES */
    "unicorn/filename-case": [
      "error",
      {
        "case": "kebabCase"
      }
    ],

    /* OTHER */
    "max-classes-per-file": ["error", 1],
    "unicorn/prevent-abbreviations": ["off"],
    "unicorn/no-null": ["off"]
  },
  "overrides": [
    {
      // Overrides for Class files
      "files": ["**/model/*", "**/models/*", "**/dto/*", "**/controller/*", "**/controllers/*"],
      "rules": {
        "unicorn/filename-case": [
          "error",
          {
            "case": "pascalCase"
          }
        ]
      }
    },
    {
      "files": ["**/*.test.*", "**/setup-jest.*"],
      "plugins": ["jest"],
      "extends": [
        "eslint:recommended",
        "plugin:jest/recommended",
        // always make sure the prettier/recommended rules come last in array
        "plugin:prettier/recommended"
      ],
      "env": {
        "jest/globals": true
      },
      "rules": {
        "unicorn/filename-case": ["off"]
      }
    }
  ]
}