opcua/BareboneServer

# loading cvb.opcua

import cvb.opcua


def main():
    # create a server
    server = cvb.opcua.Server.create(4840)

    # start server
    server.start()

    # ... but this was too easy, lets add a node to the server.

    # ... where to add the new node
    loc = cvb.opcua.NodeID.create_namespace0(
        cvb.opcua.Namespace0NodeID.OBJECTSFOLDER)

    # create node(s)
    node1 = cvb.opcua.FloatNode.create(0, "TestNode", loc, 7.2)

    def callback(data):
        print("callback was triggered")

    readCookie = node1.register_read_callback(callback)

    # add node(s)
    server.add_node(node1)

    input("Press Enter to stop\n")

    node1.deregister_callback(readCookie)
    server.stop()


if __name__ == "__main__":
    main()