.eslintrc.json

{
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "project": "./tsconfig.eslint.json"
  },
  "plugins": ["@typescript-eslint", "jest"],
  "env": {
    "es2017": true
  },
  "rules": {
    // note you must disable the base rule as it can report incorrect errors
    "require-await": "off",
    "@typescript-eslint/require-await": "error",
    "@typescript-eslint/no-misused-promises": [
      "error",
      {
        "checksVoidReturn": false
      }
    ],
    "no-unused-vars": "off",
    "@typescript-eslint/no-unused-vars": [
      "error",
      {
        "varsIgnorePattern": "^_.*"
      }
    ],
    "@typescript-eslint/no-explicit-any": 0,
    "jest/no-mocks-import": "off",
    "@typescript-eslint/no-use-before-define": "off",
    "@typescript-eslint/no-unsafe-assignment": "off",
    "@typescript-eslint/no-unsafe-call": "off",
    "@typescript-eslint/no-unsafe-return": "off",
    "@typescript-eslint/no-unsafe-member-access": "off",
    "@typescript-eslint/restrict-template-expressions": "off",
    "@typescript-eslint/no-unsafe-declaration-merging": "off",
    "@typescript-eslint/no-redundant-type-constituents": "off",
    "@typescript-eslint/no-duplicate-type-constituents": "off"
  },
  "extends": [
    "eslint:recommended",
    "plugin:jest/recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:@typescript-eslint/recommended-requiring-type-checking",
    "prettier"
  ]
}