.eslintrc.json

{
  "root": true,
  "ignorePatterns": [
    "*.md",
    "*.json",
    "*.yml",
    "*.sh",
    "functions/dist/**",
    "*.test.ts"
  ],
  "parserOptions": {
    // Required for certain syntax usages
    "ecmaVersion": 2018
  },
  "env": {
    "amd": true,
    "node": true,
    "es6": true
  },
  "plugins": ["promise"],
  "extends": "eslint:recommended",
  "rules": {
    // Removed rule "disallow multiple spaces in regular expressions" from recommended eslint rules
    "no-regex-spaces": "off",
    // Removed rule "disallow the use of debugger" from recommended eslint rules
    "no-debugger": "off",
    // Removed rule "disallow unused variables" from recommended eslint rules
    "no-unused-vars": "off",
    // Removed rule "disallow mixed spaces and tabs for indentation" from recommended eslint rules
    "no-mixed-spaces-and-tabs": "off",
    // Removed rule "disallow the use of undeclared variables unless mentioned in /*global */ comments" from recommended eslint rules
    // Warn against template literal placeholder syntax in regular strings
    "no-template-curly-in-string": 1,
    // Warn if return statements do not either always or never specify values
    "consistent-return": 0,
    // Require the use of === and !==
    "eqeqeq": 2,
    // Disallow the use of alert, confirm, and prompt
    "no-alert": 2,
    // Disallow the use of arguments.caller or arguments.callee
    "no-caller": 2,
    // Disallow null comparisons without Types-checking operators
    "no-eq-null": 2,
    // Disallow the use of eval()
    "no-eval": 2,
    // Warn against extending native types
    "no-extend-native": 1,
    // Warn against unnecessary calls to .bind()
    "no-extra-bind": 1,
    // Warn against unnecessary labels
    "no-extra-label": 1,
    // Disallow leading or trailing decimal points in numeric literals
    "no-floating-decimal": 2,
    // Warn against shorthand Types conversions
    "no-implicit-coercion": 0,
    // Warn against function declarations and expressions inside loop statements
    "no-loop-func": 1,
    // Disallow new operators with the Function object
    "no-new-func": 2,
    // Warn against new operators with the String, Number, and Boolean objects
    "no-new-wrappers": 1,
    // Disallow throwing literals as exceptions
    "no-throw-literal": 2,
    // Require using Error objects as Promise rejection reasons
    "prefer-promise-reject-errors": 2,
    // Enforce “for” loop update clause moving the counter in the right direction
    "for-direction": 2,
    // Enforce return statements in getters
    "getter-return": 2,
    // Disallow await inside of loops
    "no-await-in-loop": 0,
    // Disallow comparing against -0
    "no-compare-neg-zero": 2,
    // Warn against catch clause parameters from shadowing variables in the outer scope
    "no-catch-shadow": 1,
    // Disallow identifiers from shadowing restricted names
    "no-shadow-restricted-names": 2,
    // Require error handling in callbacks
    "handle-callback-err": 2,
    // Warn against string concatenation with __dirname and __filename
    "no-path-concat": 1,
    // Prefer using arrow functions for callbacks
    "prefer-arrow-callback": 1,
    // Return inside each then() to create readable and reusable Promise chains.
    // Forces developers to return console logs and http calls in promises.
    "promise/always-return": 2,
    //Enforces the use of catch() on un-returned promises
    "promise/catch-or-return": 2,
    // Warn against nested then() or catch() statements
    "promise/no-nesting": 1,

    // This is temporary rule that we should remove on later stage
    "@typescript-eslint/no-var-requires": 0
  },
  "overrides": [
    {
      "files": ["**/*.ts", "**/*.tsx"],
      "parser": "@typescript-eslint/parser",
      "plugins": ["@typescript-eslint"],
      "extends": [
        "eslint:recommended",
        "plugin:@typescript-eslint/recommended"
      ],
      "rules": {
        "no-console": 0,

        "no-case-declarations": 0,

        "callback-return": 0,

        "no-empty-function": 0,

        "@typescript-eslint/no-explicit-any": 0,

        "@typescript-eslint/interface-name-prefix": 0,

        "@typescript-eslint/explicit-module-boundary-types": 0,

        "@typescript-eslint/no-non-null-assertion": 0,

        "@typescript-eslint/no-non-null-asserted-optional-chain": 0,

        "@typescript-eslint/no-unnecessary-type-constraint": 0,

        "@typescript-eslint/no-empty-function": 0,

        "@typescript-eslint/ban-ts-comment": 0,

        "no-unused-vars": "off",
        "no-misleading-character-class": "off",
        "@typescript-eslint/no-unused-vars": [
          "warn",
          {
            "argsIgnorePattern": "^_",
            "varsIgnorePattern": "^_",
            "caughtErrorsIgnorePattern": "^_"
          }
        ]
      }
    }
  ]
}