How get image in QtWebApp

Mikeeeeee

Hi!
I'm trying to write an image in json and send it to the server. But the server does not accept a large request. How do I accept a large request?

void AppCore::slotApiRequest(QByteArray data)
{
    QNetworkRequest request;
    request.setHeader( QNetworkRequest::ContentTypeHeader, "application/x-www-form-urlencoded" );
    request.setUrl(QUrl(urlServerForRequest));
    request.setAttribute(QNetworkRequest::FollowRedirectsAttribute, true); //разрешает перенаправление
    //request.setHeader(QNetworkRequest::ContentTypeHeader,"application/json");
    request.setHeader( QNetworkRequest::ContentTypeHeader, "multipart/form-data" );
    request.setHeader(QNetworkRequest::ContentLengthHeader,QByteArray::number(data.size()));
    qDebug()<<data.size();
    myApiQuery.post(request, data);
}
 
void AppCore::addCategory(QString nameCategory, QString fileName)
{
    fileName = fileName.remove("file:///");
    //qDebug()<<nameCategory<<fileName;
    QImage myImage(fileName);
 
    QByteArray bArray;
    QBuffer buffer(&bArray);
    buffer.open(QIODevice::WriteOnly);
    myImage.save(&buffer, "BMP");
    QString imageString("data:image/bmp;base64,");
    imageString.append(QString::fromLatin1(bArray.toBase64().data()));
    //qDebug()<<imageString;
 
    QJsonObject jObj = QJsonObject{{"nameCategory", nameCategory}, {"image", imageString}};
    //QJsonObject jObj = QJsonObject{{"nameCategory", nameCategory}, {"image", fileName}};
    QJsonDocument doc = QJsonDocument(jObj);
    QByteArray arrayJson;
    QString strJson(doc.toJson(QJsonDocument::Compact));
    arrayJson += strJson;
 
    urlServerForRequest= urlServer + "addCategory";
    slotApiRequest(arrayJson);
}

It is my .ini file

[listener]
; host=192.168.0.100
port=8080
minThreads=4
maxThreads=100
cleanupInterval=60000
readTimeout=60000
maxRequestSize=10000000
maxMultiPartSize=10000000

[logging]
fileName=../logs/HttpSerwerQtWebApp.log
minLevel=0
bufferSize=100
maxSize=1000000
maxBackups=2
timestampFormat=dd.MM.yyyy hh:mm:ss.zzz
msgFormat={timestamp} {typeNr} {type} {thread} {msg}
; QT5 supports: msgFormat={timestamp} {typeNr} {type} {thread} {msg}\n  in {file} line {line} function {function}

[docroot]
path=docroot
encoding=UTF-8
maxAge=60000
cacheTime=60000
cacheSize=1000000
maxCachedFileSize=65536

SGaist

Hi,

Check the size of the request and adapt your server configuration accordingly.

Mikeeeeee

Size of the request = 51321.
How do I adapt the server? What else should I change besides the .ini file?

SGaist

How would I know ? You did not give any information about the web server you are using.

Mikeeeeee

It turned out to be in startup.cpp you need to remember to change the name, then initialization passes and the server works normally.

/** Name of this application */
#define APPNAME "HttpSerwerQtWebAppGameTamada"