.eslintrc.json

{
  "parser": "@typescript-eslint/parser",
  "extends": [
    "next/core-web-vitals",
    "@kiwicom/eslint-config",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:prettier/recommended",
    "plugin:jest-dom/recommended",
    "plugin:testing-library/dom",
    "plugin:testing-library/react"
  ],
  "plugins": ["node", "@typescript-eslint", "prettier", "jest-dom", "testing-library"],
  "env": {
    "browser": true,
    "es6": true,
    "jest": true,
    "node": true
  },
  "globals": {
    "__DEV__": true
  },
  "rules": {
    "prettier/prettier": "error",
    "@typescript-eslint/explicit-module-boundary-types": "error",
    "@typescript-eslint/no-explicit-any": "error",
    "@typescript-eslint/no-non-null-assertion": "error",
    "@typescript-eslint/no-unused-vars": "error",
    "node/file-extension-in-import": [
      "error",
      "always",
      {
        ".js": "never",
        ".jsx": "never",
        ".ts": "never",
        ".tsx": "never"
      }
    ],
    "testing-library/no-await-sync-events": "error",
    "testing-library/no-debugging-utils": "error",
    "testing-library/no-await-sync-query": "error",
    "testing-library/no-container": "error",
    "testing-library/no-node-access": "error",
    "testing-library/no-promise-in-fire-event": "error",
    "testing-library/no-render-in-setup": [
      "error",
      {
        "allowTestingFrameworkSetupHook": "beforeEach"
      }
    ],
    "testing-library/no-unnecessary-act": "error",
    "testing-library/no-wait-for-empty-callback": "error",
    "testing-library/no-wait-for-multiple-assertions": "error",
    "testing-library/no-wait-for-side-effects": "error",
    "testing-library/no-wait-for-snapshot": "error",
    "testing-library/await-async-utils": "error",
    "testing-library/prefer-presence-queries": "error",
    "testing-library/prefer-explicit-assert": "error",
    "testing-library/prefer-query-by-disappearance": "error",
    "testing-library/prefer-screen-queries": "error",
    "testing-library/prefer-user-event": "error",
    "testing-library/prefer-wait-for": "error",
    "testing-library/render-result-naming-convention": "error",
    "jest-dom/prefer-checked": "error",
    "jest/no-empty-title": "off",
    "jest-dom/prefer-empty": "error",
    "jest-dom/prefer-enabled-disabled": "error",
    "jest-dom/prefer-required": "error",
    "jest-dom/prefer-to-have-attribute": "error",
    "flowtype/require-valid-file-annotation": "off",
    "flowtype/no-types-missing-file-annotation": "off",
    "flowtype/require-inexact-type": "off",
    "flowtype/no-unused-expressions": "off",
    "react-hooks/exhaustive-deps": "off"
  },
  "settings": {
    "import/resolver": {
      "node": {
        "extensions": [".js", ".jsx", ".ts", ".tsx"]
      }
    }
  }
}