Pascal (Lazarus/Delphi)

JSON Insert Empty Array or Object

See more JSON Examples

Demonstrates how to use the UpdateNewArray and UpdateNewObject methods to insert an empty array or object.

Note: The UpdateNewArray an UpdateNewObject methods were introduced in Chilkat v9.5.0.75.

Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.JsonObject;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  json: TJsonObject;

begin
  success := False;

  json := TJsonObject.Create;

  //  The following code builds the following JSON, which contains both an empty array and empty object:

  //  	{
  //  	  "abc": {
  //  	    "xyz": [
  //  	      {
  //  	        "Name": "myName",
  //  	        "Description": "description",
  //  	        "ScheduleDefinition": "schedule definition",
  //  	        "ExceptionScheduleDefinition": "",
  //  	        "Attribute": [
  //  	        ],
  //  	        "SomeEmptyObject": {},
  //  	        "token": "token"
  //  	      }
  //  	    ]
  //  	  }
  //  	}

  json.UpdateString('abc.xyz[0].Name','myName');
  json.UpdateString('abc.xyz[0].Description','description');
  json.UpdateString('abc.xyz[0].ScheduleDefinition','schedule definition');
  json.UpdateString('abc.xyz[0].ExceptionScheduleDefinition','');
  json.UpdateNewArray('abc.xyz[0].Attribute');
  json.UpdateNewObject('abc.xyz[0].SomeEmptyObject');
  json.UpdateString('abc.xyz[0].token','token');

  json.EmitCompact := False;
  WriteLn(json.Emit());


  json.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.