.eslintrc.json

{
  "parser": "@typescript-eslint/parser",
  "env": {
    "browser": true,
    "commonjs": true,
    "es6": true,
    "node": true,
    "jest": true
  },
  "extends": [
    "eslint:recommended"
  ],
  "plugins": [
    "@typescript-eslint",
    "prettier",
    "react"
  ],
  "parserOptions": {
    "ecmaFeatures": {
      "jsx": true
    },
    "sourceType": "module",
    "ecmaVersion": 8
  },
  "globals": {
    "API_URL": true
  },
  "rules": {
    "prettier/prettier": ["error", {
      "endOfLine": "auto"
    }],
    "no-unused-vars": "off",
    "@typescript-eslint/no-unused-vars": "error",
    "no-undef": "off",
    "prefer-arrow-callback": "error",
    "prefer-const": "error",
    "no-var":"error",
    "no-multiple-empty-lines": [
      "error",
      {
        "max": 1
      }
    ],
    "padded-blocks": ["error", "never"],
    "keyword-spacing": ["error", {
      "before": true,
      "after": true
    }],
    "no-multi-spaces": "error",
    "arrow-spacing": "error",
    "linebreak-style": 0,
    "no-warning-comments": "warn",
    "quotes": "off",
    "semi": [
      "error",
      "always"
    ],
    "object-curly-spacing": ["error", "always"],
    "lines-between-class-members": ["error", "always"],
    "object-shorthand":"error",
    "comma-spacing": "error",
    "no-console": 0,
    "react/jsx-no-duplicate-props": 2,
    "react/self-closing-comp": 2,
    "react/prefer-es6-class": 2,
    "react/no-string-refs": 2,
    "react/require-render-return": 2,
    "react/no-is-mounted": 2,
    "react/jsx-no-comment-textnodes": 2,
    "react/jsx-curly-spacing": 2,
    "react/jsx-no-undef": 2,
    "react/jsx-uses-react": 2,
    "react/jsx-uses-vars": 2
  }
}