.eslintrc.json

{
    "env": {
        "browser": true,
        "es6": true
    },
    "parserOptions": {
        "ecmaVersion": 2018,
        "sourceType": "module",        
        "ecmaFeatures": {
            "jsx": true
        }
    },
    "parser": "babel-eslint",
    "plugins": ["jest", "import", "react", "promise"],
    "extends": ["plugin:jest/recommended", "plugin:promise/recommended", "plugin:react/recommended", "eslint:recommended"],
    "settings": {
        "react": {
            "version": "detect"
        }
    },
    "overrides": [{
        "files": ["*.spec.js"],
        "env": {
            "jest": true
        },
        "rules": {
            "max-statements": "off",
            "no-magic-numbers": "off"
        }
    }],
    "rules": {
        "arrow-body-style": "error",
        "arrow-parens": ["error", "as-needed"],
        "arrow-spacing": "error",
        "brace-style": "error",
        "class-methods-use-this": "error",
        "comma-spacing": "error",
        "complexity": ["error", { "max": 8 }],
        "curly": "error",
        "default-case": "error",
        "eol-last": "error",
        "eqeqeq": "error",
        "func-call-spacing": "error",
        "func-names": "error",
        "id-blacklist": ["error", "data", "val", "obj", "function", "arg", "that", "err", "callback"],
        "id-length": ["error", { "min": 3, "exceptions": ["id"] }],
        "indent": ["error", 4],
        "key-spacing": "error",
        "keyword-spacing": "error",
        "max-depth": ["error", { "max": 4 }],
        "max-len": ["error", { "code": 180 }],
        "max-lines": ["error", { "max": 300 }],
        "max-statements": ["error", 20],
        "max-nested-callbacks": ["error", { "max": 4 }],
        "max-params": ["error", { "max": 8 }],
        "max-statements-per-line": "error",
        "no-async-promise-executor": "error",
        "no-alert": "error",
        "no-bitwise": "error",
        "no-caller": "error",
        "no-confusing-arrow": "error",
        "no-console": ["error", { "allow": ["warn", "error"] }],
        "no-continue": "error",
        "no-empty-function": "error",
        "no-eval": "error",
        "no-implicit-coercion": "error",
        "no-implied-eval": "error",
        "no-invalid-this": "error",
        "no-iterator": "error",
        "no-labels": "error",
        "no-lone-blocks": "error",
        "no-lonely-if": "error",
        "no-loop-func": "error",
        "no-magic-numbers": ["error", { "ignore": [0, 1, 2] }],
        "no-mixed-operators": "error",
        "no-multi-spaces": "error",
        "no-multiple-empty-lines": "error",
        "no-nested-ternary": "error",
        "no-new": "error",
        "no-new-wrappers": "error",
        "no-param-reassign": "error",
        "no-proto": "error",
        "no-script-url": "error",
        "no-return-assign": "error",
        "no-return-await": "error",
        "no-shadow": "error",
        "no-self-compare": "error",
        "no-sequences": "error",
        "no-template-curly-in-string": "error",
        "no-throw-literal": "error",
        "no-trailing-spaces": "error",
        "no-unneeded-ternary": "error",
        "no-unused-expressions": "error",
        "no-use-before-define": "error",
        "no-useless-call": "error",
        "no-useless-catch": "error",
        "no-useless-return": "error",
        "no-warning-comments": "error",
        "no-with": "error",
        "prefer-promise-reject-errors": "error",
        "quotes": ["error", "double", { "avoidEscape": true }],
        "require-await": "error",
        "semi": "error",

        "import/default": "error",
        "import/export": "error",
        "import/max-dependencies": ["error", {"max": 12}],
        "import/named": "error",        
        "import/newline-after-import": "error",
        "import/no-absolute-path": "error",
        "import/no-amd": "error",
        "import/no-commonjs": "error",
        "import/no-duplicates": "error",
        "import/no-deprecated": "error",
        "import/no-dynamic-require": "error",        
        "import/no-extraneous-dependencies": "error",
        "import/no-mutable-exports": "error",
        "import/no-named-as-default": "error",
        "import/no-named-as-default-member": "error",     
        "import/no-nodejs-modules": "error",   
        "import/no-self-import": "error",
        "import/no-unresolved": "error",
        "import/no-useless-path-segments": "error",
        "import/no-webpack-loader-syntax": "error",        
        "import/prefer-default-export": "error",

        "jest/no-test-callback": "error",
        "jest/prefer-to-be-undefined": "error",
        "jest/prefer-to-contain": "error",
        "jest/prefer-to-have-length": "error",
        
        "react/default-props-match-prop-types": "error",        
        "react/no-access-state-in-setstate": "error",
        "react/no-array-index-key": "error",
        "react/no-danger": "error",
        "react/no-did-mount-set-state": "error",
        "react/no-did-update-set-state": "error",
        "react/no-direct-mutation-state": "error",
        "react/no-typos": "error",
        "react/no-this-in-sfc": "error",
        "react/no-unused-prop-types": "error",
        "react/void-dom-elements-no-children": "error",
        "react/jsx-no-target-blank": "error",

        "promise/always-return": "off"
    }
}