@suslucoder This is contrary to 'real-time'.

@KroMignon thank you

@Christian-Ehrlicher I did use it. It looks in a code tag in my screen.

@jsulm Ok. Thank you for your answers.

@Mixlu
What do you mean by "Unicode escaped format"?
Normal characters won't be escaped, even a character like é also doesn't need to be escaped.
If you use some special characters like \0, then it will be escaped to \u0000

Maybe @Moia want a method to get that QVariant without a QJsonValue?
By looking into the source code of QJsonValue, you can see that value comes from

QVariant::fromValue(nullptr)

Hi,

From the looks of it, you are looking for the XMLHttpRequest example.

well this is how i have done it. Not sure if this is even the right way ( looks like a mess to me)

QJsonDocument doc = QJsonDocument::fromJson(result.toUtf8()); qDebug() << "doc :" << doc; QJsonObject doc_obj = doc.object(); qDebug() << "doc_obj :" << doc_obj; QJsonArray doc_array = doc_obj.value("results").toArray(); doc_obj = doc_array[0].toObject(); doc_array = doc_obj.value("series").toArray(); doc_obj = doc_array[0].toObject(); doc_array = doc_obj.value("values").toArray(); for(int i = 0; i < doc_array.size(); i++) { QJsonArray arr = doc_array[i].toArray(); qDebug() << "doc value : " << arr[1].toString(); }

i am getting resuls though

@mrjj said in How I can create Json Format in Qt ?:

someObj

Thanks, it helps a lot.

@jsulm we make an installation file for our combined system, including multiple programs sharing some but not other resources. we use an nsi script to manage this. usually works fine. I just missed updating some of the .dll files.

@Christian-Ehrlicher
ahh, you are right. Good catch.
http://doc.qt.io/qt-5/qjsonvalue.html#toDouble
converts the QJsonValue to double if its that type().
in this case it will return defaultValue (0)

so its something like

QJsonValue bid1 = jsonObj.value("bid_1"); QString asStr=bid1.toString(); double n = asStr.toDouble(); qDebug() << n;

@Lodhi-bhkr Sorry, but this is not a question. What did you try? What problems do you have? Please ask more specific questions.
Looks like you asked here already: https://forum.qt.io/topic/120439/qt-code-to-send-data-on-postman-http-post-request

@Paul-Colby Thanks

i myself did something like this :)

QVariantMap json_map; const QJsonDocument doc = QJsonDocument::fromJson(output); qDebug().noquote() << doc; qDebug().noquote() << doc.array(); foreach (auto value, doc.array()) { qDebug().noquote() << value; qDebug().noquote() << value.toObject(); qDebug().noquote() << value.toObject().value("name"); json_map["name"] = value.toObject().value("name").toString(); json_map["installed"] = value.toObject().value("installed").toBool(); json_map["id"] = value.toObject().value("id").toString(); json_map["filename"] = value.toObject().value("filename").toString(); }

@Saman19
You may want to check out Cutelyst if you want to support the HTTP protocol.

If you do not need to rely on HTTP, but just want to receive JSON (or any custom protocol), take a look at QTcpServer examples.

Thank you guys.

What a wonderful quick responses.

Hi @Geeva,

@Geeva said in JSON with multi tasking:

@JKSH Thanks for solving basic confusion. I have one more doubt also. Here, I have attached program for verification. I hope you can provide a proper solution

You're welcome. I'm happy to teach you basics. However, verifying your program is too difficult to do on a forum.

You need to do 2 things:

Take C++ lessons Practice writing and debugging simple programs for your hardware

Hi @SGaist , no sorry. This was my first try to solve this. It dosn't work because of:

@JNBarchan said:

Once JSON has taken it as a double, it's too late.

With a small test program I testes Qt-JSON: https://github.com/qt-json/qt-json

#include <QCoreApplication> #include <QDebug> #include "json.h" int main(int argc, char *argv[]) { QCoreApplication a(argc, argv); QString json = "{\"success\":true,\"message\":\"some-message\",\"number1\":1.234,\"number2\":\"5.678\"}"; bool ok; QtJson::JsonObject result = QtJson::parse(json, ok).toMap(); qDebug() << "number1: " << result["number1"].toString(); qDebug() << "number2: " << result["number2"].toString(); return a.exec(); }

Which gives me the following output:

number1: "1.234" number2: "5.678"

So I think I can work with this library, but a bit sad about the truth, that such a case can't be handled without external libraries.

@Wieland: Thanks!

Thanks again for the explanation. I wish I had more time to learn programming correctly...

Hi,

I am using the one dridk mentioned. The parsing works fine and I use

listModel.append({jsonObject});

to fill my ListView. Everything is in the ListModel besides z.
If I do:

for(var i in jsonObject){ eventModel.append(jsonObject[i]) eventModel.set(i, {"zn":jsonObject[i]["z"][0]}) }

z is added as an array. Just like in the JSON object just without the []-brackets.