Libqmhd

Libqmhd is a Qt wrapper for libmicrohttpd. It handle requests in a background thread then you can handle the request by connecting to the QMHDServer::newRequest() signal. Libqmhd also comes with a router to easily route requests to your code. You can use it in two ways. One is by connecting a route to a QObject's slot in which case the request will be executed in the receiver's thread. The other way is by connecting a route to a custom QMHDController object in which case the request will be executed in one of the threads of the router's thread pool.

Usage

The simplest usage of libqmhd is to create a QMHDServer then connect to the newRequest() signal:

QMHDServer* server = new QMHDServer();

connect(server, &QMHDServer::newRequest, server, [=](QMHDRequest* request) {
    request->response()->setHeader("Content-Type", "text/plain");
    request->response()->send("Yo\n");
});
if (!server->listen(8080)) {
    // handle error
}

You can also use a QMHDRouter to handle requests more easily and route them to your code. In the example below hello is a QObject and the request is executed in hello's thread:

QMHDServer* server = new QMHDServer();
QMHDRouter* router = new QMHDRouter();

router->addRoute("GET", "/hello", hello, SLOT(handleRequest(QMHDRequest*)));
connect(server, &QMHDServer::newRequest, router, &QMHDRouter::processRequest);
if (!server->listen(8080)) {
    // handle error
}

The last example uses a QMHDController. In this case the request will be executed in one of the threads of the router's thread pool:

class Hello : public QMHDController
{
    Q_OBJECT
    QMHDCONTROLLER(Hello)

    public slots:
        void hello()
        {
            response()->setHeader("Content-Type", "text/plain");
            response()->send("world\n");
        }
};

QMHDServer* server = new QMHDServer();
QMHDRouter* router = new QMHDRouter();

router->addRoute("GET", "/hello", &Hello::staticMetaObject, "hello");
connect(server, &QMHDServer::newRequest, router, &QMHDRouter::processRequest);
if (!server->listen(8080)) {
    // handle error
}