.eslintrc.json

{
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaVersion": "12",
    "sourceType": "module",
    "project": "./tsconfig.json"
  },
  "env": {
    "node": true
  },
  "plugins": ["@typescript-eslint", "prettier", "import"],
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:import/recommended",
    "plugin:import/typescript",
    "prettier"
  ],
  "rules": {
    "prettier/prettier": "error",
    "no-console": "warn",
    "import/order": ["error", { "newlines-between": "always" }],
    "@typescript-eslint/no-unused-vars": "error",
    "@typescript-eslint/no-explicit-any": "error",
    "@typescript-eslint/no-var-requires": "error",
    "@typescript-eslint/naming-convention": [
      "error",
      {
        "selector": "variable",
        "format": ["camelCase", "UPPER_CASE"],
        "leadingUnderscore": "allow",
        "trailingUnderscore": "allow"
      },
      {
        "selector": "parameter",
        "format": ["camelCase"],
        "leadingUnderscore": "allow"
      },
      {
        "selector": ["classProperty"],
        "modifiers": ["private", "static"],
        "format": ["PascalCase", "UPPER_CASE"]
      },
      {
        "selector": ["classProperty"],
        "modifiers": ["public", "static"],
        "format": ["PascalCase", "UPPER_CASE"]
      },
      {
        "selector": ["classProperty", "classMethod"],
        "modifiers": ["private"],
        "format": ["camelCase"],
        "leadingUnderscore": "require"
      },
      {
        "selector": ["classProperty", "classMethod"],
        "modifiers": ["protected"],
        "format": ["camelCase"],
        "leadingUnderscore": "require"
      }
    ]
  },
  "settings": {
    "import/parsers": {
      "@typescript-eslint/parser": [".ts"]
    },
    "import/resolver": {
      "typescript": {
        "alwaysTryTypes": true
      }
    }
  }
}