Variables parsing: Issue with nested DateTime Fields in variables

[gmiserez]

Hello,
We've noticed issues when passing filter values as complex variables in GraphQL Queries.

To Reproduce
A demo Api is available on the following Repository : https://github.com/gmiserez/HotChocolate_Demo

Here are our queries:

query allConcertsOf2019 {
  blackSabbath2019Tour(where: { concertDate_gte: "2019-06-01" }) {
    concertDate
    cityName: name
  }
}
query allConcertsOf2019WithVariable($where: CityFilter) {
  blackSabbath2019Tour(where: $where) {
    concertDate
    cityName: name
  }
}

with the following variables:

{
  "where": {
    "concertDate_gte": "2019-06-01"
  }
}

Expected behavior
Both queries should return the same result (a list of concerts).

Obtained behavior
The second query returns an Unexpected Execution Error:

"Unable to convert type from String to DateTime

Versions:

• HotChocolate.* 11.0.0-preview.4
• MongoDB.Driver 2.8.1

[PascalSenn]

@michaelstaib I'm not sure if this is related to the filters directly

[michaelstaib]

Ah, you could be right ... since they are represented as string literal ...

[PascalSenn]

I'm not sure if this solves the problem 👀

[michaelstaib]

@PascalSenn This one should be working now.... I think I will merge the fix into your branch since yours has the tests.

[michaelstaib]

This one now fixed on V11.

[michaelstaib]

I have ported the fix to V10 #1170

[michaelstaib]

I am closing this issue now.