.eslintrc.json

{
    "env": {
      "es6": true,
      "node": true,
      "mocha": true
    },
    "parser": "@typescript-eslint/parser",
    "plugins": ["@typescript-eslint"],
    "extends": ["eslint:recommended"],
    "globals": {
    },
    "overrides": [
    {
        "files": ["*.ts", ".*.ts"],
        "extends": "plugin:@typescript-eslint/recommended",
        "rules":
        {
          "@typescript-eslint/semi": ["error"],
          "@typescript-eslint/member-delimiter-style": ["error"],
          "@typescript-eslint/interface-name-prefix": "off",
          "@typescript-eslint/no-explicit-any": "off"
        }
    },
    {
      "files": ["*.spec.ts"],
      "rules": {
          "no-unused-expressions": "off"
      }
    }],
    "rules": {
      "max-lines": ["error", {
        "max": 1200,
        "skipBlankLines": false
      }],
      "max-depth": ["error", 10],
      "no-console": "off",
      "indent": [
        "error",
        2
      ],
      "linebreak-style": [
        "error",
        "unix"
      ],
      "brace-style": [
        "error",
        "1tbs"
      ],
      "quotes": [
        "error",
        "single"
      ],
      "semi": "off",
      "no-unreachable": "warn",
      "new-cap": "off",
      "no-unused-vars": "warn",
      "no-useless-escape": "warn",
      "no-template-curly-in-string": "error",
      "default-case": "error",
      "no-empty-function": "error",
      "no-eq-null": "error",
      "camelcase": "error",
      "handle-callback-err": ["error", "((_^.+Error)|(_error))"],
      "no-use-before-define": "error",
      "no-extra-parens": ["error", "all", { 
        "nestedBinaryExpressions": false,
        "enforceForArrowConditionals": false,
        "conditionalAssign": false
      }],
      "prefer-promise-reject-errors": "error",
      "prefer-regex-literals": "error",
      "no-throw-literal": "error",
      "no-useless-concat": "error",
      "no-self-compare": "error",
      "no-param-reassign": ["error", 
        {
          "props": false
        }
      ],
      "no-return-await": "error",
      "no-loop-func": "error",
      "consistent-this": ["error", "refthis"],
      "no-array-constructor": "error",
      "no-plusplus": ["error", {
        "allowForLoopAfterthoughts": true
        }
      ],
      "no-trailing-spaces": "error",
      "no-await-in-loop": "off",
      "no-restricted-syntax": [
        "warn",
        {
          "selector": "CallExpression[callee.object.name='console']",
          "message": "Please use the object 'logger' for logging in production"
        }
      ],
      "block-scoped-var": "error",
      "consistent-return": "error",
      "no-floating-decimal": "error",
      "no-multi-str": "error",
      "no-multi-spaces": "error",
      "no-new": "error",
      "no-new-func": "error",
      "no-sequences": "error",
      "no-return-assign": ["error", "always"],
      "no-unmodified-loop-condition": "error",
      "no-unused-expressions": ["error", {
        "allowShortCircuit": true,
        "allowTernary": true
      }],
      "no-useless-return": "error",
      "no-void": "error",
      "prefer-named-capture-group": "error",
      "require-await": "error",
      "wrap-iife": ["error", "inside"]
    },
    "parserOptions": {
        "sourceType": "module",
        "ecmaVersion": 9
    }
  }