Stream JSON to TObject

[wlandgraf (Wagner Landgraf)]

You can't simply cast a TJSObject to an object declared as a Pascal object:

@Leroy_Manon

MyClient := TClient(JSObj);

It doesn't work, because internally they have different structures.
You should declare your TClient class as external and treat lists as arrays:

  TClient = class external name 'Object'
    firstName: string;
    lastName: string;
    AddressList: TArray<TAddress>;
  end;

Reference:

Deserialize TClass from XData to Web Core

You can parse the JSON and use it as a JSON object: var JsonObject: TJSObject; ... JsonObject := TJSJson.parseObject(StringJsonReturned); // then read the properties as JSON: Name := JS.ToString(JsonObject['Name']); If you want to strong type it, you can use external classes: TCustomers = class external name 'Object' public ID: Integer; Name: string; BranchList: TArray<TCustomerBranch>; end; and the same for other classes, then you can simply cast TJSObject to TCustomers: var Custome…