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.
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
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 {}
Related
I have a proyect with multiple modules, and all of them need the same provider, then I have used a shared module but I don't know where the mistake is
import { Module } from '#nestjs/common';
import { ChatBot } from './chat-bot';
import { ChatBotImplementation } from './chat-bot.implementation';
#Module({
providers: [{ provide: ChatBot, useClass: ChatBotImplementation }],
exports: [ChatBot],
})
export class SharedModule {}
import { Module } from '#nestjs/common';
import { CoreService } from './core.service';
#Module({
providers: [CoreService],
})
export class CoreModule {}
import { Module } from '#nestjs/common';
import { AppController } from './app.controller';
import { AppService } from './app.service';
import { SharedModule } from './shared/shared.module';
import { CoreModule } from './core/core.module';
#Module({
imports: [SharedModule, CoreModule],
controllers: [AppController],
providers: [AppService],
})
export class AppModule {}
import { Injectable } from '#nestjs/common';
import { ChatBot } from 'src/shared/chat-bot';
#Injectable()
export class CoreService {
constructor(chatBot: ChatBot) {
chatBot.send('hola');
}
}
When I start the server, it throws this error:
[Nest] 8456 - 29/12/2022, 17:21:08 ERROR [ExceptionHandler] Nest can't resolve dependencies of the CoreService (?). Please make sure that the argument ChatBot at index [0] is available in the CoreModule context.
Potential solutions:
- Is CoreModule a valid NestJS module?
- If ChatBot is a provider, is it part of the current CoreModule?
- If ChatBot is exported from a separate #Module, is that module imported within CoreModule?
#Module({
imports: [ /* the Module containing ChatBot */ ]
})
ChatBot is an abstract class and ChatBotImplementation implements ChatBot abstract class, I have tried with symbol as provide but it don't working either. If I put the provider in the same module that use it then it works, I supose that the misteka should be in the, exports part?
Your CoreModule doesn't have the SharedModule in its imports so it doesn't have access to providers from the SharedModule's exports. Add imports: [SharedModule] to the CoreModule's module metadata and you'll be good to go
I'm getting a strange error with my nestjs code.
Repository not connected in module file
[ExceptionHandler] Nest can't resolve dependencies of the UserRepository (?). Please make sure that the argument Connection at index [0] is available in the TypeOrmModule context
The current code is this
app.module.ts
import { Module } from '#nestjs/common';
import { TypeOrmModule } from '#nestjs/typeorm';
import connectionOptions from 'ormconfig';
import { UserModule } from './modules';
#Module({
imports: [TypeOrmModule.forRoot(connectionOptions), UserModule],
providers: [],
})
export class AppModule {}
user.module.ts
import { Module } from '#nestjs/common';
import { TypeOrmModule } from '#nestjs/typeorm';
import { UserRepository } from 'src/repositories';
import { UserController } from './user.controller';
import { UserService } from './user.service';
#Module({
imports: [TypeOrmModule.forFeature([UserRepository])],
controllers: [UserController],
providers: [UserService],
})
export class UserModule {}
user.repository.ts
import { User } from '../entities';
import { EntityRepository, Repository } from 'typeorm';
#EntityRepository(User)
export class UserRepository extends Repository<User> {
async findOneById(userId: string) {
return await this.createQueryBuilder()
.where('user_id = :userId', {
userId,
})
.getOne();
}
}
How can I fix it?
From the code you provided, there should be no problem. The only thing that will trigger the error is the ormconfig config you did not provide.
Can you check if you have name: "xxxx" in your ormconfig config like below:
{
name: 'dbname', <-- check if you have name config here
type: 'mysql',
host: 'localhost',
port: 3306,
...
}
There are 2 ways to solve it if you have name in the config:
If there is only ONE database, you can remove the name and use the default name typeorm provides.
If you have multiple databases or you want to preserve the connection name, you will need to specify the name in the code as well to help typeorm to determine which database to work with, see the below changes:
user.module.ts
#Module({
imports: [
TypeOrmModule.forFeature([UserRepository], 'dbname'), // provide the name here
],
controllers: [UserController],
providers: [UserService],
})
export class UserModule {}
user.service.ts
#Injectable()
export class UserService {
constructor(
#InjectRepository(UserRepository, 'dbname') // provide the name here
private usersRepository: UserRepository,
) {}
...
}
I do not need complete passport, I just need to sign a JWT token.
I tried working with this repository
I tried all possible combinations, but I just cant integrate it in the project. I had followed the course of several different errors. I fix one, and the another pops up. So, I am including minimum part, and the current error that is thrown.
AuthModule:
import { Module } from '#nestjs/common';
import { JwtModule } from '#nestjs/jwt';
import { AuthService } from './auth.service';
import { JwtService } from '#nestjs/jwt';
#Module({
imports: [ JwtModule.register({ secret: 'hard!to-guess_secret' })],
providers: [AuthService],
exports: [AuthService, JwtService]
})
export class AuthModule {}
AuthService:
import { Injectable } from '#nestjs/common';
import { UsersService } from '../users/users.service';
import { JwtService } from '#nestjs/jwt';
#Injectable()
export class AuthService {
constructor(
private readonly jwtService: JwtService,
) {}
async signPayload (user: any) {
const payload = { username: 'HARDCORE', color:'RED' };
return {
whatever: this.jwtService.sign(payload),
};
}
}
AppModule:
#Module({
imports: [
ConfigModule.forRoot(),
JwtModule.registerAsync({
imports: [ConfigModule],
useFactory: async (configService: ConfigService) => ({
secret: 'wefwefwef',
}),
inject: [ConfigService],
}),
TypeOrmModule.forRoot({
type: 'mysql',
...
}),
UsersModule,
SubscriptionsModule,
ProductsModule
],
controllers: [AppController],
providers: [AppService],
})
export class AppModule {
}
SomeController:
export class UsersController {
constructor(private readonly usersService: UsersService,
private readonly authService: AuthService
) {}
...
#ApiResponse({ status: 401, description: 'Unauthorized.' })
#ApiResponse({ status: 404, description: 'User Not Found.' })
#Get('users')
async findOne(#Query() userGetDto: UserGetDto): Promise<User> {
const user = await this.usersService.findByUsername(userGetDto.userName);
if (!user) throw new NotFoundException('User Not Found')
let signedUser = this.authService.signPayload(user);
return user;
And this is the error with this setup that I get:
Nest can't resolve dependencies of the JwtService (?). Please make
sure that the argument JWT_MODULE_OPTIONS at index [0] is available in
the JwtService context.
I spend lot of time on this one, but I just cant make it work.
Based on your error, JwtService is in an imports array somewhere. Providers (classes marked with #Injectable()) never go in the imports array, but rather should be added to the exports array and that module where the exports was added should be put in the consuming module's imports array.
Also, if you are working with a Dynamic Module (any module that uses register or forRoot or an async variant of the two) you should always export the module instead of its services, as the module most likely has important configurations necessary for the service to work.
I am trying to implement Mongoose crud service. I am missing something on injecting model or injecting module.
I am getting below error:
Nest can't resolve dependencies of the ProductModel (?). Please make sure that the argument DatabaseConnection at index [0] is available in the MongooseModule context
app.module.ts
#Module({
imports: [ProductsModule,
MongooseModule.forRoot(config.mongoURI)],
})
export class AppModule { }
product.module.ts
#Module({
imports: [MongooseModule.forFeature([{ name: 'MyProduct', schema: ProductSchema }])],
controllers: [ProductsController],
providers: [ProductsService],
exports: [ProductsService]
})
export class ProductsModule { }
product.service.ts
#Injectable()
export class ProductsService extends GenericMongooseCrudService<IProduct> {
eventEmitter: EventEmitter = new EventEmitter();
#InjectModel('MyProduct') private readonly userModel: Model<IProductModel>;
}
product.interface.ts
export interface IProduct extends IModelInstance {
value: string
}
export interface IProductModel extends IProduct, IMongoDocument {
}
I'm having trouble to mock multiple repositories from different modules in NestJS.
I'm using a UsersRepository from a UsersModule inside another module service (NotesService). The code is working fine, but I can't make the unit tests work.
I have the following error: Error: Nest can't resolve dependencies of the UserRepository (?). Please make sure that the argument Connection at index [0] is available in the TypeOrmModule context.
Minimal reproduction
// [users.module.ts]
#Module({
imports: [TypeOrmModule.forFeature([User])],
controllers: [UsersController],
providers: [UsersService],
exports: [UsersService],
})
export class UsersModule {}
// [users.service.ts]
#Injectable()
export class UsersService {
constructor(#InjectRepository(User) private usersRepository: UsersRepository) {}
...
}
// [notes.module.ts]
#Module({
imports: [
TypeOrmModule.forFeature([Note, User]),
UsersModule,
],
controllers: [NotesController],
providers: [NotesService],
})
export class NotesModule {
}
// [notes.service.ts]
#Injectable()
export class NotesService {
constructor(
#InjectRepository(Note) private notesRepository: NotesRepository,
#InjectRepository(User) private usersRepository: UsersRepository,
) {}
...
}
Here is my unit test configuration:
// [notes.service.spec.ts]
beforeEach(async () => {
const module = await Test.createTestingModule({
imports: [UsersModule],
providers: [
NotesService,
{ provide: getRepositoryToken(Note), useFactory: repositoryMockFactory },
{ provide: getRepositoryToken(User), useFactory: repositoryMockFactory },
],
}).compile();
notesService = module.get<NotesService>(NotesService);
notesRepositoryMock = module.get(getRepositoryToken(Note));
});
The problem is I can't make a proper mock of the UsersRepository that comes from another module.
I tried importing TypeOrmModule directly inside the test, and everything I could but I can't make it work.
You don't need to import the UsersModule if you are directly providing the NotesService and the mocks that it will depend on. The reason for the error is that Nest is trying to resolve TypeormModule.forFeature([User]) from the UsersModule. Simply remove the import in the test and you should be golden.