.eslintrc.json

{
  "root": true,
  "env": {
    "es6": true,
    "node": true,
    "jest": true
  },
  "plugins": [
    "import",
    "@typescript-eslint"
  ],
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:@typescript-eslint/recommended-requiring-type-checking",
    "standard-with-typescript"
  ],
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "sourceType": "module",
    "ecmaVersion": 8,
    "ecmaFeatures": {
      "spread": true
    },
    "project": "./tsconfig.json"
  },
  "rules": {
    "semi": ["error", "always"],
    "no-extra-semi": "error",
    "no-console": ["error", {
      "allow": [
        "error",
        "warn"
      ]
    }],
    "@typescript-eslint/semi": ["error", "always"],
    "@typescript-eslint/strict-boolean-expressions": ["error", {
      "allowString": true,
      "allowNumber": true,
      "allowNullableObject": true
    }],
    "@typescript-eslint/explicit-function-return-type": "off",
    "@typescript-eslint/explicit-module-boundary-types": "off",
    "@typescript-eslint/no-dynamic-delete": "off",
    "@typescript-eslint/ban-types": ["error", {
      "types": {
        "object": false
      }
    }],
    "@typescript-eslint/indent": ["error", 2, {
      "SwitchCase": 1,
      "VariableDeclarator": 1,
      "outerIIFEBody": 1,
      "MemberExpression": 1,
      "FunctionDeclaration": { "parameters": 1, "body": 1 },
      "FunctionExpression": { "parameters": 1, "body": 1 },
      "CallExpression": { "arguments": 1 },
      "ArrayExpression": 1,
      "ObjectExpression": 1,
      "ImportDeclaration": 1,
      "flatTernaryExpressions": false,
      "ignoreComments": false,
      "ignoredNodes": [
        "TemplateLiteral *",
        "TSTypeParameterInstantiation",
        "TSTypeAliasDeclaration > TSIntersectionType",
        "TSTypeAliasDeclaration > TSUnionType"
      ]
    }]
  }
}