JSON object passed as a parameter loses properties of the inherited class

[propheel]

Hi, I'm using 6.0.0-alpha.20210514.1 version to generate code for this PR

The problem is whenever POST operation accepts JSON object in body that has its schema defined as a base class then when I pass some object of class that inherits the base class all its own properties are gone in the request - only base class properties are present.

Example: if you were to send a Fruit type object { "name": "Generic fruit" } and you put an Apple type object { "name": "Apple", "color": "red" } as a parameter then you would see only { "name": "Apple" } in the POST request body.

The problem was found in the PR first with PostRouteDirectionsRequestBody in specification/maps/data-plane/Route/preview/1.0/route.json file, but is present also in other POST operations having a base class as a body schema.

Please advise if this is expected and if not then what can we do to mitigate.

[sarangan12]

@propheel Thanks for raising this issue. In order to answer your question, I need some more details regarding this issue. I have sent you an offline chat about this issue. We will have a meeting about it soon and then I will work on this issue. Thanks

[sarangan12]

@propheel Please find the example here for the scenario that we discussed: https://github.com/Azure/autorest.testserver/blob/main/swagger/body-complex.json#L972

[propheel]

@sarangan12 Thanks for the example. Looks exactly as the problematic one. Still my case doesn't work. I used 6.0.0-beta.5 and core v2.

The input JSON is:

{
    "geometries": {
        "type": "FeatureCollection",
        "features": [
            {
                "type": "Feature",
                "properties": {
                    "geometryId": "ExampleId"
                },
                "geometry": {
                    "type": "Point",
                    "coordinates": [
                        -111.9267386,
                        33.5362475
                    ]
                }
            }
        ]
    },
    "distances": [
        176.3
    ]
}

The JSON in the body of the POST request is:

{"geometries":{"type":"FeatureCollection","features":[{"type":"Feature","geometry":{"type":"Point"},"properties":{"geometryId":"ExampleId"}}]},"distances":[176.3]}

So it's missing coordinates property of the geometry.

The JSON is a GeoJSON object of type FeatureCollection. One of the features has a single GeoJSON object of type Point as a geometry. The Swagger definitions of those classes are available in the original PR.

Can you point to the place where the CI passes the test mentioned by you?