[FEAT]: deserialize map of arrays

[Nikita2k]

Description

Hey!

I'm looking for a way to do the following, but it seems there is no way to do so. Consider data model:

@JsonObject()
export class Animal {
   @JsonProperty()
   breed: string;
}

@JsonObject()
export class Human {
   @JsonProperty()
   name: string;

  @JsonProperty()
  age: number;
}

@JsonObject()
export class SomeMapping {
   @JsonProperty()
   mapping: Map<string, Human[] | Animal[]>   
}

and Json:

{
  "1": [{
      "breed": "foo"
   }],
   "2": [{
       "name": "John",
       "age": 42
    }, {
       "name": "Mike",
       "age": 16
    }]
}

Is there a way to correctly deserialize that map? If not, would be great to have that feature

Proposed solution

No response

[GillianPerard]

Hi, it seems there is no way today to deserialize this kind of structure.

I will see what I can do to manage this case; in my mind, you'll write something like:

@JsonObject()
export class Animal {
   @JsonProperty()
   breed: string;
}

@JsonObject()
export class Human {
   @JsonProperty()
   name: string;

  @JsonProperty()
  age: number;
}

@JsonObject()
export class SomeMapping {
   @JsonProperty({ type: property => property?.breed !== undefined ? Animal : Human })
   mapping: Map<string, Human[] | Animal[]>   
}

const data = {
  mapping: {
    "1": [{
        "breed": "foo"
     }],
     "2": [{
         "name": "John",
         "age": 42
      }, {
         "name": "Mike",
         "age": 16
      }]
  }
}

const serializer = new JsonSerializer();
serializer.deserializeObject(data, Something);

[GillianPerard]

I just published the new 6.0.1 version, you can try it according to the example I sent before.