Using global auth guard doesn't work

I’m submitting a…

[ ] Regression 
[] Bug report
[ ] Feature request
[x] Documentation issue or request
[] Support request => Please do not submit support request here, instead post your question on Stack Overflow.

Current behavior

  const app: INestApplication & INestFastifyApplication = await NestFactory.create(AppModule, new FastifyAdapter(), {
    logger: new AppLogger('root')
  });
  app.setGlobalPrefix('v3');
  app.useGlobalGuards(AuthGuard('jwt'));
  await app.listen(4200);

This allows anyone to access my routes. However when I decorate my routes with the UseGuards decorator it works as intended:

  @Get('profile/:tag')
  @UseGuards(AuthGuard('jwt'))
  public getProfile(@Param() params: { tag: string }): {} {
    return this.xService.getProfile(params.tag);
  }

Expected behavior

  app.useGlobalGuards(AuthGuard('jwt'));

I expected this to protect my whole app just as it worked with the decorated route.

Environment

Nest version: 5.0.0.-rc4 & "@nestjs/passport": "^1.0.10",

 
For Tooling issues:
- Node version: 8.x
- Platform:  Windows

[kamilmysliwiec]

Let’s try:

app.useGlobalGuards(new (AuthGuard('jwt')));

[ghost]

What is the best/nest.js way to add route exceptions, so that anonymous routes can also be implemented?