HTTP GET requests with Qt and in Qml (async)

With Qt it's very easy to work with (async) HTTP requests. This guide shows you how to do it with Qt core and in Qml. The two examples print the output of a HTTP GET request on screen after pressing a button. The Qml method uses JavaScript, so that's cheating a bit, the other method uses plain C++ with Qt's libraries for networking (`QNetworkAccessManager`) and signals and slots for the async part....

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