secretOrPrivateKey must have a value in @nestjs/jwt

Question

I can not get a token.I am using import { JwtService } from '@nestjs/jwt';.The package version is "@nestjs/jwt": "^9.0.0".The this.jwtService.sign(payload) function takes only one parameter. It shows error that I have been giving below.

Error: secretOrPrivateKey must have a value
    at Object.module.exports [as sign] (D:\nextjs-projects\shopping-app\server_v2\node_modules\jsonwebtoken\sign.js:107:20)    at JwtService.sign (D:\nextjs-projects\shopping-app\server_v2\node_modules\@nestjs\jwt\dist\jwt.service.js:28:20)      
    at AuthService.login (D:\nextjs-projects\shopping-app\server_v2\src\auth\auth.service.ts:28:35)
    at AppController.login (D:\nextjs-projects\shopping-app\server_v2\src\app.controller.ts:16:35)
    at D:\nextjs-projects\shopping-app\server_v2\node_modules\@nestjs\core\router\router-execution-context.js:38:29        
    at D:\nextjs-projects\shopping-app\server_v2\node_modules\@nestjs\core\router\router-execution-context.js:46:28        
    at D:\nextjs-projects\shopping-app\server_v2\node_modules\@nestjs\core\router\router-proxy.js:9:17

My Code: 1.AuthModule code is given bellow:

@Module({
  imports: [
    UsersModule,
    PassportModule,
    JwtModule.register({
      secret: 'ndUdggLVxTccGBJmr1BoFvAQnSEt+Osx5pgdGTOL9XwajAn4fe40Q41NbBTa9wNekjKuTLdhWBJQhi71JShvi7rFoayh3QIuEA3e4Eq8mU7lwArngzFWdSiIJgMplTLboFOeR7q8pv7MoDcl2dBmuZI4NQ5GglznC8Ebl20Sa41cg4EDkuppblXa+bqvZeSQRg0d/AL9f8NIBC3N6sEyc1nM0MWeWc1CxKuljTVQm1g2RVLG1cSNU/a5vpmy/9UwYiDiIr2aCbD60EWkQMR2vDvW/0LsVun72xEqUTdY5UuczofpmhtCxm+yw9R7iFsNcNuJAyAQN0T9OtMyt9wzPA==',
      signOptions: { expiresIn: '1h' },
    }),
    MongooseModule.forFeature([{ name: User.name, schema: UserSchema }]),
  ],
  providers: [AuthService, LocalStrategy],
  exports: [AuthService],
})
export class AuthModule {}

2.AuthService code is given bellow:

@Injectable()
export class AuthService {
  constructor(
    private readonly jwtService: JwtService,
  ) {}

  async login(user: any) {
    const payload = {
      name: user.email,
      sub: user.phone,
    };
    const token = this.jwtService.sign(payload);
    return {
      accessToken: token,
    };
  }
}

3.AppModule code is given bellow:

@Module({
  imports: [
    AuthModule,
    UsersModule,
    MongooseModule.forRoot(
      `mongodb+srv://${dbConstant.username}:${dbConstant.password}@cluster0.34saife.mongodb.net/users?retryWrites=true&w=majority`,
    ),
  ],
  controllers: [AppController],
  providers: [AppService, AuthService, JwtService],
})
export class AppModule {}

4.AppController code is given bellow:

export class AppController {
  constructor(
    private readonly authService: AuthService,
  ) {}

  @UseGuards(AuthGuard('local'))
  @Post('auth/login')
  async login(@Request() req: any) {
    return await this.authService.login(req.user);
  }
}

What exactly is jwtService.sign? Does it take a key parameter? To sign a JWT you need a ley. — jps, Oct 25 '22 at 20:40
please provide `jwtService.sign` code. That is the place where the error is happening. — Gabriel Mochi, Oct 25 '22 at 21:11
Can you show your `AuthModule`, `AuthService`'s `constructor`, `AppModule`, and `AppController`? — Jay McDoniel, Oct 25 '22 at 22:00
I have caught the problem. secret key does not pass through register.JwtModule.register({ secret: 'hskshgksgg', signOptions: { expiresIn: '1h' }, }), — Md.Shakil Shaikh, Oct 26 '22 at 13:11

score 1 · Answer 1 · answered Oct 26 '22 at 00:27

1

You need to add JwtSignOptions as second parameter

async login(user: any) {
        const payload = {
          name: user.email,
          sub: user.phone,
        };
        const token = this.jwtService.sign(payload,{secret: "youSecretKey" });
        return {
          accessToken: token,
        };
}

answered Oct 26 '22 at 00:27

Brahim Mahioussi

59
1
5

It takes only one main parameter and the secret is given on registry time – Md.Shakil Shaikh Oct 26 '22 at 05:31
I have caught the problem. secret key does not pass through register.JwtModule.register({ secret: 'hskshgksgg', signOptions: { expiresIn: '1h' }, }), – Md.Shakil Shaikh Oct 26 '22 at 10:25

score 0 · Answer 2 · answered Oct 26 '22 at 15:14

If you want to re-use the same AuthService and JwtService from the AuthModule where you originally configure the JwtModule, you need to remove the AuthService and JwtService from the AppModule's providers and only have the AuthModule in the AppModule's imports. This will ensure that only one AuthService instance is created and used (the one in the AuthModule's providers and exports).

The reason for your error is that you declare that you need a new JwtService via adding it to the AppModule's providers, and the dependencies of JwtService, the options it uses, are optional, so there's no error on startup.

TL;DR: make your `AppModule` look like this

@Module({
  imports: [
    AuthModule,
    UsersModule,
    MongooseModule.forRoot(
      `mongodb+srv://${dbConstant.username}:${dbConstant.password}@cluster0.34saife.mongodb.net/users?retryWrites=true&w=majority`,
    ),
  ],
  controllers: [AppController],
  providers: [AppService],
})
export class AppModule {}

The problem is solved. thanks a lot, comrade. I have been searching solution to this problem for 2 days. — Md.Shakil Shaikh, Oct 27 '22 at 16:57

secretOrPrivateKey must have a value in @nestjs/jwt

2 Answers2

TL;DR: make your AppModule look like this

TL;DR: make your `AppModule` look like this