.eslintrc.json

{
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "project": "tsconfig.json",
    "sourceType": "module"
  },
  "plugins": [
    "@typescript-eslint/eslint-plugin",
    "prettier",
    "import"
  ],
  "extends": [
    "plugin:@typescript-eslint/recommended",
    "plugin:@typescript-eslint/recommended-requiring-type-checking",
    "plugin:import/typescript",
    "prettier"
  ],
  "root": true,
  "env": {
    "node": true,
    "jest": true
  },
  "rules": {
    "prettier/prettier": [
      "error",
      {
        "printWidth": 120,
        "tabWidth": 2,
        "useTabs": false,
        "semi": true,
        "singleQuote": true,
        "trailingComma": "all",
        "bracketSpacing": true,
        "arrowParens": "always"
      }
    ],
    "eqeqeq": "error",
    "prefer-template": "error",
    "complexity": ["warn", 10],
    "max-depth": ["warn", 3],
    "max-statements": ["warn", 30],
    "max-lines": ["warn"],
    "no-console": "warn",
    "no-debugger": "error",
    "no-warning-comments": ["warn", { "terms": ["todo", "fixme", "hack"], "location": "anywhere" }],
    "implicit-arrow-linebreak": "error",
    "arrow-body-style": ["error", "as-needed"],
    "func-names": ["error", "always"],
    "prefer-arrow-callback": "error",
    "func-style": ["error", "declaration"],
    "@typescript-eslint/array-type": "error",
    "@typescript-eslint/interface-name-prefix": "off",
    "@typescript-eslint/explicit-function-return-type": "off",
    "@typescript-eslint/explicit-module-boundary-types": "off",
    "@typescript-eslint/consistent-indexed-object-style": ["error", "record"],
    "@typescript-eslint/consistent-type-imports": ["error", { "prefer": "no-type-imports" }],
    "@typescript-eslint/explicit-member-accessibility": ["error", { "accessibility": "no-public" }],
    "@typescript-eslint/member-ordering": "error",
    "@typescript-eslint/no-confusing-non-null-assertion": ["error"],
    "@typescript-eslint/no-dynamic-delete": ["error"],
    "@typescript-eslint/no-empty-interface": ["error", {"allowSingleExtends": true }],
    "@typescript-eslint/no-explicit-any": ["error", { "fixToUnknown": true, "ignoreRestArgs": false }],
    "@typescript-eslint/prefer-for-of": ["error"],
    "@typescript-eslint/prefer-function-type": ["error"],
    "@typescript-eslint/prefer-includes": ["error"],
    "@typescript-eslint/prefer-literal-enum-member": "error",
    "@typescript-eslint/prefer-optional-chain": "error",
    "@typescript-eslint/prefer-readonly": "error",
    "@typescript-eslint/naming-convention": [
      "warn",
      { "selector": "variableLike", "format": ["camelCase"] },
      { "selector": "method", "format": ["camelCase"] },
      { "selector": "typeLike", "format": ["PascalCase"] },
      { "selector": "parameter", "format": ["camelCase"] }
    ],
    "@typescript-eslint/no-floating-promises": "off",
    "import/order": [
      "error",
      {
        "groups": ["builtin", "external", "internal", "parent", "sibling", "index"],
        "pathGroups": [
          {
            "pattern": "@app/**",
            "group": "internal"
          }
        ],
        "pathGroupsExcludedImportTypes": ["@app"],
        "alphabetize": { "order": "asc" }
      }
    ],
    "import/newline-after-import": "error",
    "import/no-default-export": "error",
    "import/no-duplicates": "error",
    "import/no-self-import": "error"
  },
  "overrides": [
    {
      "files": [
        "test/**/*.spec.ts"
      ],
      "plugins": [
        "@typescript-eslint",
        "prettier",
        "import",
        "jest",
        "jest-formatting"
      ],
      "extends": [
        "plugin:@typescript-eslint/recommended",
        "plugin:@typescript-eslint/recommended-requiring-type-checking",
        "plugin:import/typescript",
        "plugin:jest/recommended",
        "plugin:jest/style",
        "prettier"
      ],
      "rules": {
        "@typescript-eslint/unbound-method": "off",
        "jest/unbound-method": "error",
        "jest/consistent-test-it": ["error", {"fn": "it"}],
        "jest/max-nested-describe": ["error", { "max": 3 }],
        "jest/no-duplicate-hooks": "error",
        "jest/no-identical-title": "error",
        "jest/no-test-return-statement": "error",
        "jest/prefer-called-with": "error",
        "jest/prefer-hooks-on-top": "error",
        "jest/require-to-throw-message": "error",
        "jest/require-top-level-describe": "error",
        "jest-formatting/padding-around-after-all-blocks": 1,
        "jest-formatting/padding-around-after-each-blocks": 1,
        "jest-formatting/padding-around-before-all-blocks": 1,
        "jest-formatting/padding-around-before-each-blocks": 1,
        "jest-formatting/padding-around-describe-blocks": 1,
        "jest-formatting/padding-around-test-blocks": 1
      }
    }
  ]
}