@Poggar As the above two posts have said. Fastest way to convert Vector to QJsonArray? gives code and confirms there is no faster way than some sort of iteration over the C++ array adding elements to the JSON array, you can use std::copy() to save you writing a for loop yourself if you wish.

@SGaist I actually have some of them built already. Thats why i was asking what would be better/ if my approach with the database would be viable. :) Have a nice easter.

@Saviz I think is not possible to expose a QMap directly to QML, https://doc.qt.io/qt-6/qtqml-cppintegration-data.html#sequence-type-to-javascript-array Maybe one should use a QVariantMap https://doc.qt.io/qt-6/qtqml-cppintegration-data.html#qvariantlist-and-qvariantmap-to-javascript-array-and-object

HI @R-P-H , Besides converting the QByteArray to a QString, how would I extract the value if I added {} to the QByteArray ... As long as the QByteArray contains a valid JSON value, you can either wrap it in [ and ] to make it a JSON array, or { "key": and } to make it a JSON object. If wrapping in an array, you would then fetch the first array item to get the original JSON value. Of if wrapping in an object, fetch the value corresponding to the key you used in the wrapper. Here's a complete example: const QByteArray json{ "\"My Value\" "}; qDebug().noquote() << "input " << json; qDebug().noquote() << "parse-as-is " << QJsonDocument::fromJson(json); // Will fail. const QJsonDocument arrayDoc = QJsonDocument::fromJson("[" + json + "]"); qDebug().noquote() << "wrapped-in-array " << arrayDoc; qDebug().noquote() << "unwrapped-array " << arrayDoc.array().at(0); const QJsonDocument objectDoc = QJsonDocument::fromJson("{ \"value\": " + json + "}"); qDebug().noquote() << "wrapped-in-object " << objectDoc; qDebug().noquote() << "unwrapped-object " << objectDoc.object().value(QStringLiteral("value")); Which outputs: input "My Value" parse-as-is QJsonDocument() wrapped-in-array QJsonDocument(["My Value"]) unwrapped-array QJsonValue(string, My Value) wrapped-in-object QJsonDocument({"value":"My Value"}) unwrapped-object QJsonValue(string, My Value) Cheers.

After playing around using postman I found the issue. When sending a Bearer: "" or Bearer: "xxxxxx" token, the server returns "Authentication Required". But when sending no Bearer token or an empty Bearer: it works fine. So when logging in; no token must be supplied else it tries to authenticate against that token instead of correctly generating a new one provided you submitted valid credentials in the JSON body. Seems a bit odd to me, but ok.

@CupofCoffee said in how can i modify the value of the Qjason array?: TradingAreaInfoArr = rootObj["TradingAreaInfo"].toArray(); My understanding is that this returns a copy of the QJsonArray. You can modify that copy (update values, append new ones), but that does not alter the array in the QJsonDocument. The same with the QJsonObject InfoObj = rootObj["info"].toObject(); The objects/arrays in these are read-only. You have to copy them out as above, alter them, and then replace the current objects/arrays in the document, or create a new one, in order to produce a new document with the updates which can be saved.

I did resolve it using rapidjson instead of QJsonObject Thank you all

@jsulm said in How to exploit a json file in QT ?: @feedain You already have this code snippet here, did you notice it? obj["State"] = int(state); yes thanks

@JonB I produced my Json. It make sense i will edit my json and write without " "

@JKSH Oh wow, you're completely right. I didn't know qDebug() behaved like this, I assumed noquote() was the default. Thanks for the help, I don't know how long it would have taken me to find out.

@J-Hilk thank you

@jsulm thank you. I did it with your solution. It works fine.

@suslucoder The "Plan" array is a little unusual because the objects it contains are not all of the same structure. Usually, arrays should contain a sequence of elements of the same type. However, it is legal JSON. If you are certain that the first element of the "Plan" array will have the structure as in your example above, you can perhaps rely on the others to all have the 2nd type structure. Otherwise, you might need to check for the existence of certain keys -- for example, by using the function QJsonObject::contains() to determine which kind of object it is.

@KroMignon thank you