{
"request":"senddata",
"datatype" : "event",
"id" : "123123",
"eventKey":"High Temperature",
"timestamp":"2017-01-13T20:15:57Z",
"eventParameters":{
"Temperature": 25,
"High Temperature": 35,
"Setpoint": 25,
}
}

For the above JSON, I've tried to use a QJsonDocument object like this:

Qt Code: 
  1. QByteArray arr = "{\"request\" : \"senddata\","
  2.                         "\"datatype\" : \"event\","
  3.                         "\id\" : \"123123\","
  4.                         "\"eventKey\" : \"High Temperature\","
  5.                         "\timestamp\" : \"";
  6.         arr + dt;
  7.         arr +=  "\","
  8.                 "\eventParameters\" : {"
  9.                     "\"Temperature\" : 25,"
  10.                     "\"High Temperature\" : 30,"
  11.                     "\"Setpoint\" : 25}}";
  12.         doc = QJsonDocument::fromJson(arr);
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I need this because the timestamp key is a variable. I can't get this to work properly. I've also tried using the insert method with QJsonObjec more like:

Qt Code: 
  1. json.insert("id","070707");
  2.         json.insert("request","senddata");
  3.         json.insert("datatype","event");
  4.         json.insert("eventKey","High Temperature");
  5.         json.insert("timestamp", QDateTime::currentDateTime().toTimeSpec(Qt::OffsetFromUTC).toString(Qt::ISODate));
  6.         ...
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No joy here either. So my real question is how to prepare the nested JSON example for a REST type POST command. It would also be great to see a JSON array example.

Thanks,
-Rich