Note: this example is currently experimental and requires advanced knowledge of Qt!
This is a small chat application using the managed WebSockets provided by Qt Cloud Services. You can launch this example multiple times and on different computers and will instantly have a chat room where everyone that is connected can write messages.
This example requires the Qt WebSockets module which is part of Qt 5.3. It can be run with Qt 5.3.0-beta1 and onwards.
When building the example you need to have a Managed WebSocket instance running and copy the MWS_GATEWAY_ID and MWS_INSTANCE_ADDRESS into mainwindow.cpp. You need to disable Access Control Management by setting it to None in your websocket instance.
For detailed instructions follow the getting started instructions.
Make sure that you have the qtwebsockets module.
If you get errors like this:
error: 'YOUR_MWS_GATEWAY_ID_HERE' was not declared in this scope
error: 'YOUR_MWS_INSTANCE_ADDRESS_HERE' was not declared in this scope
then you forgot to copy your data from your Qt Cloud Services Account into mainwindow.cpp.
The example runs and shows this message:
Error: 204 - Host requires authentication: {"error":{"reason":"AccessDenied","message":"Access denied"}}
That means you did not disable the access control for this simple example. In the management console choose your websocket instance and set the Access Control Management to None.
For example with Ubuntu you might come across following error message during build:
/usr/bin/ld: cannot find -lGL
In this case you are missing OpenGL related packages which can be installed with following command:
sudo apt-get install libgl1-mesa-dev