response.json

{
  "data": {
    "type2": {
      "kind": "INPUT_OBJECT",
      "name": "InputSimple",
      "fields": null,
      "inputFields": [
        {
          "name": "fieldWithDefault",
          "type": {
            "kind": "NON_NULL",
            "name": null,
            "ofType": {
              "kind": "SCALAR",
              "name": "ID",
              "ofType": null
            }
          },
          "defaultValue": "\"value from fieldWithDefault\""
        },
        {
          "name": "simpleField",
          "type": {
            "kind": "ENUM",
            "name": "TestEnum",
            "ofType": null
          },
          "defaultValue": null
        }
      ],
      "interfaces": null,
      "enumValues": null,
      "possibleTypes": null
    }
  }
}