.eslintrc.json

{
  "root": true,
  // "parser": "babel-eslint",
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaFeatures": {
      "jsx": true
    },
    "ecmaVersion": 2018,
    "sourceType": "module",
    "project": ["./frontend/tsconfig.json", "./api/tsconfig.json"],
    "tsconfigRootDir": "src"
  },
  "env": {
    "browser": true,
    "es6": true,
    "node": true,
    "jest": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
    //"plugin:@typescript-eslint/recommended-requiring-type-checking"
    "standard",
    "plugin:react/recommended",
    "plugin:jsx-a11y/recommended",
    "prettier/@typescript-eslint", // Uses eslint-config-prettier to disable ESLint rules from @typescript-eslint/eslint-plugin that would conflict with prettier
    "plugin:prettier/recommended",
    "plugin:import/errors",
    "plugin:import/warnings",
    "plugin:import/typescript",
    "plugin:security/recommended"
  ],
  "settings": {
    "react": {
      "version": "latest"
    },
    "import/extensions": [".js", ".jsx", ".ts", ".tsx"],
    "import/parsers": {
      "@typescript-eslint/parser": [".ts", ".tsx"]
    }
  },
  "plugins": ["@typescript-eslint/eslint-plugin", "import", "prettier", "standard", "react", "jsx-a11y", "security"],
  "rules": {
    //"no-unused-variable": "warn",
    "import/no-unresolved": "error",
    "import/named": "error",
    "import/namespace": "error",
    "import/default": "error",
    "import/export": "error",
    "import/no-absolute-path": "error",
    "import/no-self-import": "error",
    "import/no-cycle": "error",
    "import/no-named-as-default": "error",
    "import/no-named-as-default-member": "error",
    "import/no-mutable-exports": "error",
    "import/no-unused-modules": "warn",
    "import/first": "error",
    "import/exports-last": "error",
    "import/no-duplicates": "error",
    "import/order": "error",
    "import/newline-after-import": "error",
    "import/no-named-default": "error",
    "import/no-default-export": "error",
    "import/no-anonymous-default-export": "error",
    "@typescript-eslint/promise-function-async": "error",
    "@typescript-eslint/no-misused-promises": "error",
    "@typescript-eslint/no-floating-promises": "error",
    "@typescript-eslint/member-delimiter-style": [
      "error",
      {
        "multiline": {
          "delimiter": "none",
          "requireLast": false
        },
        "singleline": {
          "delimiter": "comma",
          "requireLast": false
        }
      }
    ],
    "no-console": "off",
    "react/jsx-filename-extension": [
      1,
      {
        "extensions": [".js", ".jsx", ".ts", ".tsx"]
      }
    ],
    "react/jsx-uses-react": 1,
    "react/jsx-uses-vars": 1,
    "react/prop-types": 0,
    "prettier/prettier": 1
  }
}