High level wrapper around QNetworkAccessManager for make network communications easy.

DOGG_11

Hi guys! We publish our small library for simplify interacting with web for Qt.

For example you can load web-page like this:

const QByteArray data = NetworkRequestLoader::loadSync("https://github.com");

Or like this

NetworkRequestLoader::loadAsync("https://github.com", [] (const QByteArray& _loadedData) {
    qDebug() << "Loaded" << _loadedData.size() << "bytes.";
});

Want to send POST request? It's easy!

NetworkRequest request;
requset.setRequestMethod(NetworkRequest::Post);
request.addRequestAttribute("id", 1893);
request.addRequestAttributeFile("photo", "/home/user/Images/photo.png");
const QByteArray postStatus = request.loadSync("https://site.com/API/v1/savePhoto/");

Github link https://github.com/dimkanovikov/WebLoader

We hope, it will be useful. If you have some questions, we ready to give answers for you.

Chris Kawa

Hi, thanks for sharing.

I have a question and a suggestion.

The question is - does this preserve sessions? If I make a login request and then some resource request for that session will it work? I guess it's really a question of do you use a single QNetworkAccessManager for all requests or change them underneath. If one then it would be nice to get access to it somehow or set my own if I already have one for other purposes.

There's also this example:

foreach (const QString& url, thousandsUrls) {
    NetworkRequestLoader::loadAsync(url, [] (const QByteArray& _loadedData, const QUrl& _fromUrl) {
        qDebug() << "Loaded" << _loadedData.size() << "bytes from" << _fromUrl;
    });
}

This has a downside that it creates thousands of instances of that lambda object. If the lambda used some heavy state capture this can become a problem. Of course I could do

auto someLambda = [] (const QByteArray& _loadedData, const QUrl& _fromUrl) {
   qDebug() << "Loaded" << _loadedData.size() << "bytes from" << _fromUrl;
}
foreach (const QString& url, thousandsUrls) {
    NetworkRequestLoader::loadAsync(url, someLambda);
}

but it's not as pretty and it could be usefull to add an overload that would simply let me pass a container of urls and do the loop for me:

NetworkRequestLoader::loadAsync(thousandsUrls, [] (const QByteArray& _loadedData, const QUrl& _fromUrl) {
        qDebug() << "Loaded" << _loadedData.size() << "bytes from" << _fromUrl;
});

DOGG_11

@Chris-Kawa big thanks for you answer and suggestion!

For save session across requests you can use instance of QNetworkCookieJar class, like this:

QNetworkCookieJar cookies;
NetworkRequest request;
request.setCookieJar(&cookies);
request.loadSync("https://site.com/API/v1/startSession");

// And in next step you can reuse this request or create new NetworkRequest and sent cookies to them

request.loadSync("https://site.com/API/v1/uploadImage");

Thanks for suggestion again. We added patch which allow you to use overloaded method and pass a container of links to load!:)