Service is created for every child type when using `Scope.REQUEST`

I’m submitting a…

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

Current behavior

Injecting a service using the scope REQUEST is creating the service for every child type of a query.

Expected behavior

The service should only be created once.

Minimal reproduction of the problem with instructions

In the following query, we try to get all the posts of a specific user.

query {
  author(id: 1) {
    id
    email
    name
    posts {
      id
      title
      tags
      createdAt
    }
  }
}

The field tags is resolved dynamically using the feature @ResolveProperty().

@Resolver('Post')
export class PostResolvers {
  constructor(private myService: MyService) {}

  @ResolveProperty()
  tags() {
    // the logic here
  }
}

MyService is going to be created for every post published by the author instead of only one time. Since Scope.REQUEST was designed to create the service for each request, it looks like a bug,

What is the motivation / use case for changing the behavior?

By using Scope.REQUEST, we can create a DataLoader for every request.

Environment

Nest version: 6.0.4

 
For Tooling issues:
- Node version: 11.8.0
- Platform:  Mac

Others:

[kamilmysliwiec]

Oh thanks @iagomelanias, fixed!

[kamilmysliwiec]

Thanks for reporting. It should be fixed in @nestjs/graphql@6.0.4 😃