Sketchfab API C++/Qt example

sketchfab-api.cpp

/*
Compiling:
qmake -project "QT += core network script"
qmake
make
 */

#include <iostream>
#include <QApplication>
#include <QDebug>
#include <QFile>
#include <QHttpMultiPart>
#include <QProgressDialog>
#include <QUrl>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QNetworkRequest>
#include <QScriptEngine>

QHttpPart part_parameter(QString key, QString value) {
    QHttpPart part;
    part.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"" + key + "\""));
    part.setBody(value.toAscii());
    return part;
}

int main(int argc, char* argv[])
{
    QApplication application(argc, argv);

    QHttpMultiPart *multiPart = new QHttpMultiPart(QHttpMultiPart::FormDataType);

    // upload parameters data
    multiPart->append(part_parameter("title", "Uber Glasses"));
    multiPart->append(part_parameter("description", "Test of the api with a simple model"));
    multiPart->append(part_parameter("tags", "test collada glasses"));
    multiPart->append(part_parameter("token", "ff00ff"));
    multiPart->append(part_parameter("private", "1"));
    multiPart->append(part_parameter("password", "Tr0b4dor&3"));

    // upload file data
    QHttpPart modelPart;
    modelPart.setHeader(QNetworkRequest::ContentTypeHeader, QVariant("application/octet-stream"));
    modelPart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"fileModel\"; filename=\"./model.dae\""));
    QFile *file = new QFile("model.dae");
    file->open(QIODevice::ReadOnly);
    modelPart.setBodyDevice(file);
    file->setParent(multiPart);
    multiPart->append(modelPart);

    QUrl url("https://api.sketchfab.com/v1/models");
    QNetworkRequest request(url);

    QNetworkAccessManager manager;
    QNetworkReply *reply = manager.post(request, multiPart);
    multiPart->setParent(reply);
    qDebug() << "Transmitting" << file->size() << "bytes file.";

    QObject::connect(reply, SIGNAL(finished()), &application, SLOT(quit()));

    int res = application.exec();

    // test for network error
    QNetworkReply::NetworkError err = reply->error();
    if (err != QNetworkReply::NoError) {
        qDebug() << reply->errorString();
        return 1;
    }

    // get the api anwser
    QByteArray result = reply->readAll();
    QScriptValue sc;
    QScriptEngine engine;
    qDebug() << "Result:" << result;
    sc = engine.evaluate("(" + QString(result) + ")");

    if (sc.property("success").toString() == "true") {
        qDebug() << "Model uploaded with id" << sc.property("result").property("id").toString();
    } else {
        qDebug() << "Model failed to upload with error" << sc.property("error").toString();
    }

    return res;
}