NestJS cannot resolve my UsersService dependency why? Is it due to UserModel?

Question

I am trying to learn NodeJS framework. I have initialized a project for that and now I am trying to add authentication to secure the HTTP access. I follows the NestJS documentation but I have the following error when I inject my UsersService in the AuthService:

[Nest] 14876 - 13/04/2020 à 09:26:19 [ExceptionHandler] Nest can't resolve dependencies of the UsersService (?). Please make sure that the argument UserModel at index [0] is available in the AuthModule context.

Potential solutions:
- If UserModel is a provider, is it part of the current AuthModule?
- If UserModel is exported from a separate @Module, is that module imported within AuthModule?
@Module({
imports: [ /* the Module containing UserModel */ ]
})
+2ms
Error: Nest can't resolve dependencies of the UsersService (?). Please make sure that the argument UserModel at index [0] is available in the AuthModule context.

It seems that it is due to the following injection in my UsersService :

constructor(@InjectModel('User') private readonly UserModel: Model) {}

but I doesn't know how to solve this problem. My training project is stored on github :

https://github.com/afontange/nest-js.git

I read other tickets on same subject but I don't know what is the solution for my problem.

Thanks for your help.

har17bar · Accepted Answer · 2020-04-13 10:43:43Z

0

export const UsersSchema = new Schema({
  name: String,
});


Module({
   imports: [
   MongooseModule.forFeature([{ name: 'Users', schema: UsersSchema }]) // add
  ],
  controllers: [],
  providers: [],
  exports: []

}) export class AuthModule {}

Do you add in your Auth.module.ts

answered Apr 13, 2020 at 10:43

har17bar

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1 Comment

afontange Over a year ago

Thanks for all the answers but I received on github the following comment : Remediation Upgrade minimist to version 0.2.1 or later. For example: "dependencies": { "minimist": ">=0.2.1" } or… "devDependencies": { "minimist": ">=0.2.1" } I have upgraded minimist library and all seems OK now. I don't understant why this librairy is not installed by default by NestJS installer when you create a new project.

afontange · Accepted Answer · 2020-04-14 13:24:17Z

0

The AuthModule is the following:

import { Module } from '@nestjs/common';
import { AuthService } from './auth.service';
import { UsersModule } from '../users/users.module';
import { PassportModule } from '@nestjs/passport';
import { LocalStrategy } from './local.strategy';
import { UsersService } from '../users/users.service';

@Module({
  imports: [UsersModule, PassportModule],
  providers: [AuthService, LocalStrategy, UsersService],
})
export class AuthModule {}

answered Apr 14, 2020 at 13:24

afontange

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