response.json

{
  "errors": [
    {
      "message": "Fields \"testUnion\" conflict because \"name\" and \"email\" are different fields. Use different aliases on the fields to fetch both if this was intentional.",
      "locations": [
        { "line": 2, "column": 3 },
        { "line": 4, "column": 7 },
        { "line": 14, "column": 7 }
      ]
    }
  ]
}