How many QNetworkAccessManagers to have in an app?
I wonder what the implications of using multiple QNAM are? Should I have only one QNAM and give it as a ctor parameter to my own QObjects, or should my QObjects just each create their own QNAM?
hold a single instance if you can. Unless you depend on having multiple instances.
In general you should be fine with 1 instance and pass them to your objects which need to do requests.