I have a question about setting up a custom userService factory.

[jungsikjeong]

First of all, may the god of coding be with anyone who takes the time to answer my question, even a little.

I integrated my custom authentication module called user-service into Medusa using an MSA (microservices architecture) structure.
And here’s what I did:

// modules/user/index.ts
import type { MedusaContainer } from '@medusajs/types';
import UserModuleService from './service';


export const serviceKey = 'userService'; 

export const serviceFactory = async (
  container: MedusaContainer,
): Promise<UserModuleService> => {
  return new UserModuleService();
};

export default {
  serviceKey,
  serviceFactory,
};

Then, I registered it in medusa-config.js.

const {
  loadEnv,
  defineConfig,
  Modules,
  ContainerRegistrationKeys,
} = require('@medusajs/framework/utils');

loadEnv(process.env.NODE_ENV || 'development', process.cwd());

module.exports = defineConfig({
  projectConfig: {
    databaseUrl: process.env.DATABASE_URL,
    http: {
      storeCors: process.env.STORE_CORS || '',
      adminCors: process.env.ADMIN_CORS || '',
      authCors: process.env.AUTH_CORS || '',
      jwtSecret: process.env.JWT_SECRET || 'supersecret',
      cookieSecret: process.env.COOKIE_SECRET || 'supersecret',
    },

    http: {
      jwtExpiresIn: process.env.JWT_EXPIRES_IN || '30d',
    },
  },

  modules: [
    {
...,
    {
      resolve: './src/modules/user',
      options: {
        userServiceUrl: process.env.USER_SERVICE_URL,
      },
    },
  ],
  middlewares: {
...
}
});

 {
      resolve: './src/modules/user',
      options: {
        userServiceUrl: process.env.USER_SERVICE_URL,
      },
    },

Isn't this how you're supposed to register it?

An error occurs.

error:   Error in loading config: Cannot read properties of undefined (reading 'prototype')
error:   TypeError: Cannot read properties of undefined (reading 'prototype')
    at /home/jungsikjeong/github/almondyoung-server/apps/medusa/node_modules/@medusajs/utils/src/common/define-config.ts:106:38
    at Array.reduce (<anonymous>)
    at transformModules (/home/jungsikjeong/github/almondyoung-server/apps/medusa/node_modules/@medusajs/utils/src/common/define-config.ts:69:35)
    at resolveModules (/home/jungsikjeong/github/almondyoung-server/apps/medusa/node_modules/@medusajs/utils/src/common/define-config.ts:311:10)
    at defineConfig (/home/jungsikjeong/github/almondyoung-server/apps/medusa/node_modules/@medusajs/utils/src/common/define-config.ts:51:19)
    at Object.<anonymous> (/home/jungsikjeong/github/almondyoung-server/apps/medusa/medusa-config.js:10:18)
    at Module._compile (node:internal/modules/cjs/loader:1529:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1613:10)
    at Object.require.extensions.<computed> [as .js] (/home/jungsikjeong/github/almondyoung-server/apps/medusa/node_modules/ts-node/src/index.ts:1608:43)
    at Module.load (node:internal/modules/cjs/loader:1275:32)

hellp me plz

[shahednasser]

Hey there, Medusa expects you to export a module definition in modules/user/index.ts like this:

import UserService from "./service"
import { Module } from "@medusajs/framework/utils"

export const USER_MODULE = "userService"

export default Module(USER_MODULE, {
  service: UserService,
})

Where did you find the syntax you used above?