.eslintrc.json

{
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "project": "./tsconfig.json",
    "tsconfigRootDir": "./",
    "sourceType": "module"
  },
  "plugins": ["@typescript-eslint", "import"],
  "extends": [
    "airbnb-base",
    "airbnb-typescript/base",
    "plugin:import/errors",
    "plugin:import/warnings",
    "plugin:import/typescript"
  ],
  "ignorePatterns": [".eslintrc.json"],
  "root": true,
  "env": { "node": true, "jest": true },
  "settings": {
    "import/resolver": {
      "typescript": {
        "extensions": [".ts", ".tsx"],
        "moduleDirectory": ["src", "node_modules"]
      }
    }
  },
  "rules": {
    "max-len": ["error", { "code": 220 }],
    "no-console": "off",
    "no-shadow": "off",
    "no-bitwise": "off",
    "no-unused-vars": "off",
    "no-await-in-loop": "off",
    "no-continue": "off",
    "no-plusplus": "off",
    "no-constant-condition": "off",
    "no-promise-executor-return": "off",
    "function-paren-newline": "off",
    "array-bracket-spacing": ["error", "always"],
    "object-curly-newline": ["error", { "multiline": true }],
    "no-useless-constructor": "off",
    "@typescript-eslint/indent": ["error", 4, { "SwitchCase": 1 }],
    "@typescript-eslint/no-unused-expressions": "off",
    "@typescript-eslint/space-before-function-paren": ["error", "always"],
    "@typescript-eslint/semi": ["error", "never"],
    "@typescript-eslint/comma-dangle": ["error", "never"],
    "@typescript-eslint/object-curly-spacing": ["error", "always"],
    "@typescript-eslint/no-shadow": ["error"],
    "@typescript-eslint/no-useless-constructor": "off",
    "@typescript-eslint/interface-name-prefix": "off",
    "@typescript-eslint/explicit-function-return-type": "off",
    "@typescript-eslint/no-unused-vars": [
      "warn",
      { "argsIgnorePattern": "^_" }
    ],
    "@typescript-eslint/no-explicit-any": "off",
    "import/prefer-default-export": "off",
    "import/no-default-export": "error",
    "space-before-function-paren": ["error", "always"],
    "lines-between-class-members": [
      "error",
      "always",
      { "exceptAfterSingleLine": true }
    ],
    "no-underscore-dangle": "off",
    "arrow-parens": [2, "as-needed", { "requireForBlockBody": true }],
    "import/no-extraneous-dependencies": ["error", { "devDependencies": true }],
    "@typescript-eslint/member-delimiter-style": [
      "error",
      {
        "multiline": {
          "delimiter": "comma",
          "requireLast": false
        },
        "singleline": {
          "delimiter": "comma",
          "requireLast": false
        }
      }
    ],
    "@typescript-eslint/explicit-module-boundary-types": [
      "error",
      { "allowedNames": ["transform"] }
    ],
    "import/extensions": [
      "error",
      "ignorePackages",
      {
        "js": "never",
        "mjs": "never",
        "jsx": "never",
        "ts": "never",
        "tsx": "never"
      }
    ]
  }
}