Bug: Setting Faker type in setSeederFactory does not work

[SavoVuksan]

Versions

• Node: 20.16.0
• OS: Ubuntu 24.04 LTS

Reproduction

I am currently trying to setup seeding with typeorm-extension. It seems that it does not work to define the type of the Faker instance for the setSeederFactory. When defining the type it says that faker is missing some types.

import { setSeederFactory } from 'typeorm-extension';
import { User } from '../entities/user.entity';
import { Faker } from '@faker-js/faker/.';

export const UserFactory = setSeederFactory(User, (faker: Faker) => {
  const user = new User();
  user.firstName = faker.person.firstName();
  user.lastName = faker.person.lastName();
  user.email = faker.internet.email();
  user.avatarUrl = faker.image.avatar();

  return user;
});

I get following error from my VS Code

Argument of type '(faker: Faker) => User' is not assignable to parameter of type 'FactoryCallback<User, unknown>'.
  Types of parameters 'faker' and 'faker' are incompatible.
    Type 'Faker' is missing the following properties from type 'Faker': book, foodts(2345)

Am I doing something wrong here? Is it not allowed to define the Faker type? Or am I using the wrong faker version?

My package.json

{
  "name": "nestjs-course",
  "version": "0.0.1",
  "description": "",
  "author": "",
  "private": true,
  "license": "UNLICENSED",
  "scripts": {
    "build": "nest build",
    "format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\"",
    "start": "nest start",
    "start:dev": "nest start --watch",
    "start:debug": "nest start --debug --watch",
    "start:prod": "node dist/main",
    "lint": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix",
    "test": "jest",
    "test:watch": "jest --watch",
    "test:cov": "jest --coverage",
    "test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",
    "test:e2e": "jest --config ./test/jest-e2e.json",
    "seed": "ts-node src/seeding/seed.ts"
  },
  "dependencies": {
    "@nestjs/common": "^10.0.0",
    "@nestjs/core": "^10.0.0",
    "@nestjs/mapped-types": "^2.0.6",
    "@nestjs/platform-express": "^10.0.0",
    "@nestjs/typeorm": "^10.0.2",
    "class-transformer": "^0.5.1",
    "class-validator": "^0.14.1",
    "pg": "^8.13.1",
    "reflect-metadata": "^0.2.0",
    "rxjs": "^7.8.1",
    "typeorm": "^0.3.20",
    "typeorm-extension": "^3.6.3",
    "zod": "^3.24.1"
  },
  "devDependencies": {
    "@faker-js/faker": "^9.3.0",
    "@nestjs/cli": "^10.0.0",
    "@nestjs/schematics": "^10.0.0",
    "@nestjs/testing": "^10.0.0",
    "@types/express": "^5.0.0",
    "@types/jest": "^29.5.2",
    "@types/node": "^20.3.1",
    "@types/supertest": "^6.0.0",
    "@typescript-eslint/eslint-plugin": "^8.0.0",
    "@typescript-eslint/parser": "^8.0.0",
    "eslint": "^8.0.0",
    "eslint-config-prettier": "^9.0.0",
    "eslint-plugin-prettier": "^5.0.0",
    "jest": "^29.5.0",
    "prettier": "^3.0.0",
    "source-map-support": "^0.5.21",
    "supertest": "^7.0.0",
    "ts-jest": "^29.1.0",
    "ts-loader": "^9.4.3",
    "ts-node": "^10.9.1",
    "tsconfig-paths": "^4.2.0",
    "typescript": "^5.1.3"
  },
  "jest": {
    "moduleFileExtensions": [
      "js",
      "json",
      "ts"
    ],
    "rootDir": "src",
    "testRegex": ".*\\.spec\\.ts$",
    "transform": {
      "^.+\\.(t|j)s$": "ts-jest"
    },
    "collectCoverageFrom": [
      "**/*.(t|j)s"
    ],
    "coverageDirectory": "../coverage",
    "testEnvironment": "node"
  }
}

[SavoVuksan]

Ok I changed the faker version to the one in typeorm-extension that seemed to do the trick.

TLDR:
I had to change faker-js from version 9 to version 8