Deserialize unix timestamps into `chrono::NaiveDateTime`

[mWalrus]

Hi, I'm stuck trying to deserialize the graphql response for one of my queries at work.

I have this query:

thing {
  ...
  approvalStatus {
    status
    date
  }
  ...
}

The query returns the following json:

"thing": {
  ...
  "approvalStatus": {
    "status": "",
    "date": 0
  }
  ...
}

When trying to deserialize date into a NaiveDateTime it errors with a "invalid type: integer 0, expected a formatted date and time string" message. Is there any way for me to specify that I want to deserialize date(time) fields using chrono's chrono::naive::serde::ts_milliseconds for example?

[mWalrus]

I solved this by creating a wrapper type which I then use with the query:

#[derive(Deserialize, Debug)]
pub struct DateTime(#[serde(with = "ts_milliseconds_option")] pub Option<NaiveDateTime>);