The types do not signal that the result can be undefined

[kpilard]

Describe the bug
At the moment is the result of useQuery defined as Ref<TResult>. But shouldn't it be Ref<undefined|TResult>.
While the Query is executed result.value will be undefined.

Example

setup () {
  const {result} = useQuery<UsePostsResult>()
  const posts = computed(() => result.value.posts)

  return {posts}
}

This example would create an error, because undefined.posts is not available. The typescript check doesn't notice this error because result.value is defined to be UsePostsResult.

Expected behavior
The result should be marked as possibly undefined.

Versions
vue: 2.6.11
vue-apollo: 4.0.0-alpha.10
apollo-client: 2.6.10

[brunomperes]

I think this line on a merged PR should have fixed this issue. It's released with 4.0.0-alpha.12 . Mind giving it another try @kpilard ?

[kpilard]

@brunocontreras I think these changes are not in 4.0.0-alpha.12
https://github.com/vuejs/vue-apollo/blob/v4.0.0-alpha.12/packages/vue-apollo-composable/src/useQuery.ts#L56

But yes that should solve my issue