Simple Dgraph schema to GraphQL schema mapping doesn't work

OK, so it seems we always need Dgraph typing (<dgraph.type>) in order to be able to map to graphql, right?

In this case the documentation at https://graphql.dgraph.io/dgraph is not correct or @dgraph doesn’t work. Do you think I should submit an issue about it?

I also tried your example, unfortunately I got this error for the upsert:

{
  "name": "t",
  "url": "http://localhost:8080/mutate?commitNow=true",
  "errors": [
    {
      "message": "Some variables are defined but not used\nDefined:[getValues v]\nUsed:[v]\n",
      "extensions": {
        "code": "ErrorInvalidRequest"
      }
    }
  ]
}

It seems to be related to this issue:

Nevertheless, thanks for your help!