I need some help with a complex json

[kilianp07]

During my program I run a query and I get this result in a string
{ "ok": true, "result": { "message_id": 109, "from": { "id": 3456789, "is_bot": true, "first_name": "ghhdhdsh", "username": "hbdhbhbdh" }, "chat": { "id": 5678, "first_name": "ghj", "last_name": "ghj", "username": "ghj", "type": "private" }, "date": 1606112895, "text": "ddd" } }

So I created some structures
`
struct from {
int id;
bool is_bot;
string first_name;
string username;
XTOSTRUCT( O(id, is_bot,first_name,username));
};

struct chat{
int id;
string first_name;
string last_name;
string username;
string type;
XTOSTRUCT( O(id, first_name,last_name,username,type));
};

struct result: public from,chat{
int message_id;
int date;
string text;
XTOSTRUCT(I(from,chat), O(message_id, date, text));
};

struct retour: public result {
bool ok;
XTOSTRUCT(I(result), O(ok));

};
`

And I want to do something like

if (retour.ok){ cout<<retour.result.chat.username<<" has received the message"; }

How can I do that, I've got some errors.
Thank you

[xyz347]

define struct like this:

struct From {
  int id;
  bool is_bot;
  string first_name;
  string username;
  XTOSTRUCT( O(id, is_bot,first_name,username));
};

struct Chat{
  int id;
  string first_name;
  string last_name;
  string username;
  string type;
  XTOSTRUCT( O(id, first_name,last_name,username,type));
};

struct Result {
  int message_id;
  From from;
  Chat chat;
  int  date;
  string text;
  XTOSTRUCT(O(message_id, from, chat, date, text));
};

struct retour {
  bool ok;
  Result result;
  XTOSTRUCT(O(ok, result));
};

[kilianp07]

Thank you, it works fine !
Congratulations for your project.