GraphQL Reduct Response

I have a response from GraphQL which is similar to:

"data": {
  "x": {
    "y":{
      "nodes": [
        {
          "id": 123
        },
        {
          "id": 123
        },

        {
          "id": 456
        }
      ]
    }
  }
}

Is there a way to reduce this so that no duplicate IDs come, using the graphQL query.