How to convert a QJsonObject to QString

Question

I have a QJsonObject data and want to convert to QString. How can I do this? Searched for help in Qt, it only can convert QJsonObject to QVariantMap...

Thanks in advance.

Answer 1

Remembering when I first needed to do this, the documentation can be a bit lacking and assumes you have knowledge of other QJson classes.

To obtain a QString of a QJsonObject, you need to use the QJsonDocument class, like this: -

QJsonObject jsonObj; // assume this has been populated with Json data

QJsonDocument doc(jsonObj);
QString strJson(doc.toJson(QJsonDocument::Compact));

Answer 2

we can do this in one line

QString strFromObj = QJsonDocument(jsonObject).toJson(QJsonDocument::Compact).toStdString().c_str();