[Interest] QNetwork classes for submitting google forms

[Nicholas Yue]

I have now moved the code into a small UI test app so there is already a Qt
loop in the main app but it stopped working (status code not printed out)
again, do I have to retain the app.exec() and app.exit() ?

```

#include "GForm.h"

#include "ui_form.h"

#include <QVBoxLayout>

#include <QUiLoader>

#include <QFile>

#include <QApplication>

#include <QDirIterator>

#include <QDebug>

#include <QFile>

#include <QClipboard>

#include <QtNetwork/QNetworkRequest>

#include <QtNetwork/QNetworkAccessManager>

#include <QUrlQuery>

#include <QDebug>

#include <QNetworkReply>

#include <QCoreApplication>

#include <QThread>



#include <iostream>


GForm::GForm(QWidget *parent)

    : QWidget(parent)

    , ui(new Ui::Form)

{

    ui->setupUi(this);

    connect( ui->cancel_pushButton, SIGNAL(clicked()), this, SLOT(close() ) );

    connect( ui->submit_pushButton, SIGNAL(clicked()), this,
SLOT(doSubmit() ) );

}


GForm::~GForm()

{

    delete ui;

}


void GForm::doSubmit()

{

    QString name = ui->name_lineEdit->text();

    QString message = ui->message_lineEdit->text();

    QString email = ui->email_lineEdit->text();


    qDebug() << QString("Do Submission [message = %1, name = %2, email
= %3]").arg(message).arg(name).arg(email);


    {

        // Google form submission


        QUrlQuery postData;

        postData.addQueryItem("entry.305082368", message);

        postData.addQueryItem("entry.1264643879", name);

        postData.addQueryItem("entry.1004643569", email);


        QUrl serviceUrl("https://docs.google.com/forms/d/1ngIkIaj0CEdJl1ucL9JgVq82rUquPbKPGt4066bKscA/formResponse");

        QNetworkRequest request(serviceUrl);

        request.setHeader(QNetworkRequest::ContentTypeHeader,

                          "application/x-www-form-urlencoded");

        QNetworkAccessManager networkManager;


        QObject::connect(&networkManager, &QNetworkAccessManager::finished,

                         [&](QNetworkReply *reply) {

            int status =


reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();

            qDebug() << "Got status:" << status << "Data:" << reply->readAll();

            //  etc....

            reply->deleteLater();

        });


        networkManager.post(request,

                            postData.toString(QUrl::FullyEncoded).toUtf8());



    }

}

```

On Fri, 11 Jun 2021 at 21:07, Max Paperno <max-l at wdg.us> wrote:

>
> On 6/11/2021 10:32 PM, Thiago Macieira wrote:
> > On Friday, 11 June 2021 14:10:57 PDT Max Paperno wrote:
> >> while (!gotResponse)
> >>     sleep(1)  // or whatever sleep method, just waiting for a response.
> >
> > NEVER EVER sleep.
> >
> > Insert a "return" here and let your slot be called when the time is
> right.
> >
>
> Right, too much Python lately... "should" have been `processEvents()`
> which is when I realized there were no events to process w/out a Qt loop
> in the first place.  Returning from main() wouldn't have solved the
> issue though.
>
> -Max
> _______________________________________________
> Interest mailing list
> Interest at qt-project.org
> https://lists.qt-project.org/listinfo/interest
>


-- 
Nicholas Yue
Graphics - Arnold, Alembic, RenderMan, OpenGL, HDF5
Custom Dev - C++ porting, OSX, Linux, Windows
http://au.linkedin.com/in/nicholasyue
https://vimeo.com/channels/naiadtools
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