Creating a Simple Event Bus with Crossbar.io

This code demonstrates how to create a simple event bus using the Crossbar.io library to handle different types of events and process associated data.

Technology Stack : Crossbar.io

Code Type : Sample code

Code Difficulty : Intermediate

                
                    
def crossbar_event_bus_example(event_type, data):
    """
    This function demonstrates how to create a simple event bus using Crossbar.io
    library to handle different types of events and process associated data.
    """
    from crossbar import Crossbar, Worker, Component

    class EventProcessor(Component):
        def on_event(self, msg):
            print(f"Received event: {msg}")

    def create_crossbar():
        # Initialize Crossbar with the EventProcessor worker
        cb = Crossbar(name="event_bus_example", workers=[
            Worker(name="event_processor", component=EventProcessor())
        ])

        # Start Crossbar
        cb.start()

    # Create and start the Crossbar
    create_crossbar()

    # Simulate an event
    event_bus = cb.workers['event_processor'].workers[0].event_bus
    event_bus.publish(event_type, data)

    return "Event published successfully"