nest-commander not recognizing module imports

[leemaria]

Hello,

I am trying to implement nest-commander for my project, which is currently using Standalone applications

Without nest-commander, the setup is like this:

main.ts

async function bootstrap() {
  await CommandFactory.run(AppModule, ['warn', 'error']);

  if (process.argv[2] === 'basic') {
    const app = await NestFactory.createApplicationContext(AppModule);
    const tasksService = app.get(DummyTestService);
    await tasksService.run();
    await app.close();
  }

}

bootstrap();

app.module.ts

@Module({
  imports: [CustomConfigModule],
  providers: [DummyTestService]
})
export class AppModule {}

custom-config.module.ts

@Module({
  providers: [
    {
      provide: CustomConfigService,
      useFactory: async () => {
        const customConfig = await CustomConfigService.getInstance();
        return customConfig;
      }
    }
  ],
  exports: [CustomConfigService]
})
export class CustomConfigModule {}
}

dummy-test.service.ts

@Injectable()
export class DummyTestService {
  private static readonly logger = new Logger(DummyTestService.name);

  async run(): Promise<void> {
    console.log('hello');

    DummyTestService.logger.log('Hello World');
    return;
  }
}

My CustomConfigService initializes some authorization stuff and uses the Logger to print to the console when it completes its tasks. When I run my Nest JS app normally with argument "basic", I get all the Logs from my CustomConfigService and DummyTestService.

When I try to switch to using nest-commander, I am only making these 2 changes to

main.ts

async function bootstrap() {
  await CommandFactory.run(AppModule);
}

bootstrap();

and dummy-test.service.ts

@Command({ name: 'basic', description: 'A parameter parse' })
@Injectable()
export class DummyTestService {
  private static readonly logger = new Logger(DummyTestService.name);

  async run(): Promise<void> {
    console.log('hello');

    DummyTestService.logger.log('Hello World');
    return;
  }
}

Running the command now gives me "hello" (the console.log from dummy-test.service.ts, but not any of my Logger.log. It seems like my CustomConfigModule is not getting loaded in properly.

Does anyone happen to have insight as to what might be happening?

[jmcdo29]

Huh, that's weird. Do you have a minimum reproduction for this at all? I'd love to take a look

[leemaria]

Yes, here is a codesandbox I put together quickly and got the same behavior

As a standalone application: https://codesandbox.io/s/standalone-application-p9u92l

Using nest-commander: https://codesandbox.io/s/nest-commander-vq3n9q

As mentioned, the only changes between the two are in main.ts and /services/dummy-test.service.ts

[jmcdo29]

Ah, you know what I think it is? nest-commander uses logger: false under the hood when calling NestFactory.createApplicationContext(), to cut down on the start up logs as the CLI should be relatively silent. So when you're using Nest's Logger, that is set to false and doesn't print anything, all the options are a no-op. You can use CommandFactory.run(AppModule, { logger: new Logger() }) and it should behave similarly to the direct approach

[leemaria]

Oh my, that was exactly it! So it was working this entire time. Thank you so much!