.eslintrc.json

{
    "root": true,
    "extends": [
        "eslint:recommended",
        "plugin:@typescript-eslint/recommended"
    ],
    "plugins": ["@typescript-eslint"],
    "env": {
        "node": true,
        "es6": true
    },
    "rules": {
        // Need to switch off most of the eslint rules in favour of the typescript-eslint rules
        "brace-style": "off",
        "camelcase": "off",
        "curly": "error",
        "guard-for-in": "error",
        "no-console": "error",
        "no-empty-function": "off",
        "no-extra-parens": "off",
        "no-magic-numbers": "off",
        "no-unused-vars": "off",
        "no-useless-constructor": "off",
        "require-atomic-updates": "off",
        "require-await": "off",
        "spaced-comment": "error",
        "no-template-curly-in-string": "error",
        "array-callback-return": "error",
        "block-scoped-var": "error",
        "consistent-return": "error",
        "default-case": "error",
        "no-alert": "error",
        "no-caller": "error",
        "no-div-regex": "error",
        "no-eval": "error",
        "no-extend-native": "error",
        "no-extra-bind": "error",
        "no-extra-label": "error",
        "no-implied-eval": "error",
        "no-invalid-this": "error",
        "no-iterator": "error",
        "no-labels": "error",
        "no-lone-blocks": "error",
        "no-multi-str": "error",
        "no-new-func": "error",
        "no-new-wrappers": "error",
        "no-return-assign": "error",
        "no-return-await": "off",
        "no-self-compare": "error",
        "no-sequences": "error",
        "no-unused-expressions": "error",
        "complexity": ["error", { "max": 12 }],
        "max-classes-per-file": "error",

        "@typescript-eslint/ban-types": ["off"],
        // Need to have camelcase off because off our legacy snake case for API
        "@typescript-eslint/camelcase": ["off"],
        "@typescript-eslint/consistent-type-assertions": "off",
        "@typescript-eslint/consistent-type-definitions": ["error", "interface"],
        // Note: if we ever use this config to lint js files the following rule needs
        // to be off and an override added specifically for ts files
        "@typescript-eslint/explicit-function-return-type": ["error", { "allowExpressions": true }],
        "@typescript-eslint/explicit-member-accessibility": ["error", { "accessibility": "no-public" }],
        "@typescript-eslint/naming-convention": [
            "error",
            {
                "selector": "interface",
                "format": ["PascalCase"],
                "custom": {
                    "regex": "^I[A-Z]",
                    "match": false
                }
            }
        ],
        "@typescript-eslint/member-ordering": [
            "error",
            {
                /* The only difference between default is the constructor is specified
                 * after static methods
                 */
                "default": [
                    "public-static-field",
                    "protected-static-field",
                    "private-static-field",

                    "public-instance-field",
                    "protected-instance-field",
                    "private-instance-field",

                    "public-field",
                    "protected-field",
                    "private-field",

                    "static-field",
                    "instance-field",

                    "field",

                    "public-static-method",
                    "protected-static-method",
                    "private-static-method",

                    "constructor",

                    "public-instance-method",
                    "protected-instance-method",
                    "private-instance-method",

                    "public-method",
                    "protected-method",
                    "private-method",

                    "static-method",
                    "instance-method",

                    "method"
                ]
            }
        ],
        "@typescript-eslint/no-empty-function": ["error", { "allow": ["constructors"] }],
        "@typescript-eslint/no-explicit-any": ["off"],
        "@typescript-eslint/no-floating-promises": ["error"],
        "@typescript-eslint/no-for-in-array": ["error"],
        "@typescript-eslint/no-inferrable-types": ["off"],
        "@typescript-eslint/no-magic-numbers": ["off"],
        "@typescript-eslint/no-misused-promises": ["error"],
        "@typescript-eslint/no-namespace": ["off"],
        "@typescript-eslint/no-non-null-assertion": ["off"],
        "@typescript-eslint/no-type-alias": ["off"],
        "@typescript-eslint/no-unnecessary-qualifier": ["error"],
        "@typescript-eslint/no-unnecessary-type-arguments": ["error"],
        "@typescript-eslint/no-unused-vars": ["error", { "argsIgnorePattern": "^_" }],
        "@typescript-eslint/no-use-before-define": ["off"],
        "@typescript-eslint/no-useless-constructor": ["error"],
        "@typescript-eslint/no-var-requires": ["off"],
        "@typescript-eslint/prefer-for-of": ["error"],
        "@typescript-eslint/prefer-function-type": ["error"],
        "@typescript-eslint/prefer-string-starts-ends-with": ["error"],
        "@typescript-eslint/promise-function-async": ["error"],
        "@typescript-eslint/require-await": ["error"],
        "@typescript-eslint/typedef": [
            "error",
            {
                "arrayDestructuring": false,
                "arrowParameter": false,
                "memberVariableDeclaration": false,
                "objectDestructuring": true,
                "parameter": true,
                "propertyDeclaration": true
            }
        ],
        "@typescript-eslint/unified-signatures": ["error"]
    },
    "parser": "@typescript-eslint/parser",
    "parserOptions": {
        "ecmaVersion": 2018,
        "sourceType": "module",
        "project": "tsconfig.json",
        "createDefaultProgram": true
    }
}