Whole response becomes NULL if a field in response have null value ?

[RageshAntony]

For some specific queries, I was getting NULL response

So I did some digging, finally found that, in the response if a field is null, then the entire response becomes null

For example ,

In this response,

{
    "data": {
        "cable_opr_by_pk": {
            "address": "124",
            "cable_name": "erty",
            "email": "rrr@yopp.com",
            "password": "qwer123",
            "phone_no": "9876543210",
            "user_id": 11,
            "isActive": false,
            "paid_month": null
        }
    }

The paid_month is null. So what happens is, the entire response becomes null, that is

final resp = await client.request(reqCust).firstWhere((response) => response.dataSource != DataSource.Optimistic);

In the above execution, resp.data?.cable_opr_by_pk in NULL .

But if I added some value for paid_month in the DB and retried, then I able to get result since paid_month is not NULL.

Why this is happening ? Please help me

[knaeckeKami]

You will probably find the reason by checking the additional fields of the response that are for error handling.