How to parse this JSON wit Qt an C++? - c++

Question

I have a json like this:
{
"name1": {
"path": "D:/myfolder"
},
"name2": {
"path": "D:/anotherFolder"
},
"name3": {
"path": "D:/myfolder"
}
}
And I want to get: are the names and the folder names.
like :
name1, D:/myfolder
name2, D:/anotherFolder
name3, D:/myfolder
It is not important if i get them independently or in an map, because i want to save them
to new variables into another struct.
what I have so far is:
QString jsonFile = "myjson.json";
QFile loadFile(jsonFile);
if(!loadFile.open(QIODevice::ReadOnly)){
qDebug() << "Failed to open " << loadFile; }
QByteArray data = loadFile.readAll();
QJsonDocument loadDoc(QJsonDocument::fromJson(data));
QJsonObject json = loadDoc.object();
QStringList keys = json.keys(); // <------- that give me the names. check.
But i didnt get it: how to get the second element?!?
the nearest approche so far was to get the "2nd dimension" with foreach:
foreach(const QJsonValue path, json ){
qInfo() << path;
}
this gave me as output:
QJsonValue(object, QJsonObject({"path": "D:/myfolder"}))
QJsonValue(object, QJsonObject({"path": "D:/anotherFolder"}))
QJsonValue(object, QJsonObject({"path": "D:/myfolder"}))

Answer 1

Most optimal way to do it just using single for iteration
QJsonDocument doc = QJsonDocument::fromJson(data);
QJsonObject json = doc.object();
for (auto it = json.constBegin(); it != json.constEnd(); ++it)
{
qInfo() << it.key() << it.value().toObject().value("path").toString();
}

Answer 2

You have to iterate through the keys obtaining the value, and then access the last one using the key "path":
QJsonDocument loadDoc = QJsonDocument::fromJson(data);
QJsonObject json = loadDoc.object();
for(const QString & key : json.keys()){
qInfo() << key << json[key].toObject()["path"].toString();
}