.eslintrc.json

{
  "env": {
    "browser": true,
    "commonjs": true,
    "es2021": true,
    "jest": true,
    "jest/globals": true
  },
  "extends": ["airbnb-base", "prettier", "plugin:import/typescript"],
  "plugins": ["only-warn", "import", "jest"],
  "parserOptions": {
    "ecmaVersion": 12
  },
  "rules": {
    "no-underscore-dangle": "off",
    "class-methods-use-this": "off",
    "import/no-unresolved": "error",
    "import/extensions": ["warn", "never"],
    "import/order": [
      "error",
      {
        "alphabetize": {
          "order": "asc",
          "caseInsensitive": true
        },
        "newlines-between": "always",
        "groups": [
          "builtin",
          "external",
          "internal",
          "parent",
          "sibling",
          "index",
          "object"
        ],
        "pathGroups": [
          {
            "pattern": "@config/**",
            "group": "internal",
            "position": "before"
          },
          {
            "pattern": "@logger/**",
            "group": "internal",
            "position": "before"
          },
          {
            "pattern": "@errors/**",
            "group": "internal",
            "position": "before"
          },
          {
            "pattern": "@middleware/**",
            "group": "internal",
            "position": "before"
          },
          {
            "pattern": "@classes/**",
            "group": "internal",
            "position": "before"
          },
          {
            "pattern": "@routes/**",
            "group": "internal",
            "position": "before"
          },
          {
            "pattern": "@utils/**",
            "group": "internal",
            "position": "before"
          },
          {
            "pattern": "@validators/**",
            "group": "internal",
            "position": "before"
          },
          {
            "pattern": "@constants/**",
            "group": "internal",
            "position": "before"
          }
        ]
      }
    ],
    "jest/no-identical-title": "error"
  },
  "overrides": [
    {
      "files": ["*.ts", "*.tsx"],
      "parser": "@typescript-eslint/parser",
      "extends": ["plugin:@typescript-eslint/recommended"]
    }
  ],
  "settings": {
    "import/parsers": {
      "@typescript-eslint/parser": [".ts", ".tsx"]
    },
    "import/resolver": {
      "typescript": {
        // always try to resolve types under `<root>@types` directory even it doesn't contain any source code, like `@types/unist`
        "alwaysTryTypes": true
      },
      "node": {
        "paths": ["src"],
        "extensions": [".js", ".jsx", ".ts", ".tsx"]
      },
      "alias": [
        ["@root", "."],
        ["@config", "./config"],
        ["@classes", "./classes"],
        ["@errors", "./errors"],
        ["@logger", "./logger"],
        ["@middleware", "./middleware"],
        ["@routes", "./routes"],
        ["@utils", "./utils"],
        ["@loaders", "./loaders"],
        ["@database", "./database"],
        ["@services", "./services"],
        ["@validators", "./validators"],
        ["@fixtures", "./fixtures"],
        ["@database", "./database"],
        ["@constants", "./constants"]
      ]
    }
  },
  "globals": {
    "Base64": true
  }
}